Water-based primer-topcoat thick-coating anti-corrosion silver powder paint as well as preparation method and application thereof

Abstract

The invention relates to the technical field of anti-corrosion silver powder paint, in particular to water-based primer-topcoat thick-coating anti-corrosion silver powder paint as well as a preparation method and application thereof. The preparation raw materials comprise 50-60% of an epoxy emulsion, 2-3% of a blending auxiliary agent, 10-20% of a pre-dispersed slurry, 10-20% of a silver powder pre-mixed slurry, 1-2% of a rheology modifier, and the balance of a pre-mixed auxiliary agent, totaling 100%. The water-based primer-topcoat thick-coating anti-corrosion silver powder paint provided by the invention has the advantages of environmental friendliness, super-strong thick-coating bubble-free film thickness, good constructability and long-term corrosion resistance.

Description

Technical Field

[0001] The invention relates to the technical field of anti-corrosion silver powder paint, and in particular to a water-based base-and-surface all-in-one thick-coating anti-corrosion silver powder paint and a preparation method and application thereof. Background Art

[0002] The anti-corrosion silver powder paints currently used are mostly oily. Oily anti-corrosion silver powder paints use organic solvents, which may pollute the environment, be flammable and explosive, and endanger health. When water is used as a solvent, the anti-corrosion silver powder paint cannot be applied thickly, has poor adhesion, and has weak anti-corrosion properties, which limits the application of water-based anti-corrosion silver powder paints in corrosive environments.

[0003] The Chinese patent with patent publication number CN111286243A discloses a water-based acrylic silver powder paint suitable for mechanical equipment and a preparation method thereof, which uses a water-based emulsion, a cosolvent, an additive, an anti-settling agent, an aluminum silver paste, an anti-flash rust agent, a thickener, and deionized water for coordination, but does not provide a solution for the application of the silver powder paint to aluminum, cast iron, carbon steel and other materials for anti-corrosion.

[0004] Therefore, providing an environmentally friendly, thick-coating, and easy-to-apply water-based, bottom-and-top thick-coating anti-corrosion silver powder paint is the main technical problem that needs to be solved at present. Summary of the invention

[0005] In order to solve the above technical problems, the present invention provides an environmentally friendly water-based anti-corrosion silver powder paint, which has super thick coating without bubble film thickness, good construction performance, and long-term anti-corrosion performance.

[0006] The first aspect of the present invention provides a water-based base and surface thick coating anti-corrosion silver powder paint. Calculated by mass percentage, its preparation raw materials include 50-60% epoxy emulsion, 2-3% blending auxiliary agent, 10-20% pre-dispersed slurry, 10-20% silver powder premix slurry, 1-2% rheology modifier, and the premix auxiliary agent is supplemented to 100%.

[0007] In one embodiment, the epoxy equivalent of the epoxy emulsion is 1010±50 g / Eq.

[0008] In one embodiment, the epoxy emulsion is purchased from Jiangsu Fuqisen New Materials Co., Ltd. and the model is AQUAER-3011.

[0009] In one embodiment, the blending aid includes a defoamer, a leveling agent, a silane compound, and a wetting agent.

[0010] In one embodiment, the blending aid is composed of a defoamer, a leveling agent, a silane compound, and a wetting agent, and the mass ratio of the defoamer, the leveling agent, the silane compound, and the wetting agent is 8:12:5:3.

[0011] In one embodiment, the defoamer includes BASF defoamer 104E.

[0012] In one embodiment, the brands of the leveling agent include BYK346 from Germany, BYK-024 from Germany, TEGO GLIDE100 from Germany, and TEGO 410 from Germany.

[0013] In one embodiment, the mass ratio of the leveling agents of BYK346, BYK-024, TEGO GLIDE100 and TEGO 410 is 6:3:1:2.

[0014] The inventors found during the experiment that the construction performance of water-based base-to-surface thick-coat anti-corrosion silver powder paint can be improved by using defoamer 104E, leveling agent BYK346, leveling agent BYK-024, leveling agent TEGO GLIDE100, leveling agent TEGO 410, and rheology modifier AQUATIX8421 in combination.

[0015] In one embodiment, the silane compound includes the brand of American Momentive Silane COATOSILMP200.

[0016] In one embodiment, the wetting agent includes German Digo wetting agent 4100.

[0017] In one embodiment, the pre-dispersed slurry includes bentonite and water.

[0018] In one embodiment, the water is deionized water, and the mass ratio of the bentonite to the deionized water is 8:168.

[0019] In one embodiment, the brand of bentonite includes American Hemmings bentonite BENTONE EW.

[0020] In one embodiment, the pre-dispersed slurry consists of bentonite and water.

[0021] In one embodiment, the method for preparing the pre-dispersed slurry includes: adding bentonite into deionized water and stirring at a stirring speed of 500 rpm, then increasing the stirring speed to 1500 rpm, and stopping stirring when a transparent state is reached and a fineness of 40 μm to obtain a dispersed slurry.

[0022] In one embodiment, the silver powder premix slurry includes a solvent and silver powder.

[0023] In one embodiment, the solvent used in the silver powder premix includes deionized water and propylene glycol methyl ether, and the mass ratio of propylene glycol methyl ether, deionized water, and silver powder in the silver powder premix is ​​6:3:7.

[0024] In one embodiment, the preparation method of the silver powder premix comprises: mixing propylene glycol methyl ether and deionized water at a stirring speed of 300 rpm, adding silver powder and stirring, increasing the stirring speed to 600 rpm, and stirring and dispersing for 40 minutes to obtain the silver powder premix.

[0025] In one embodiment, the silver powder has a particle size of 35-45 μm, and the silver powder is surface treated.

[0026] In one embodiment, the particle size of the silver powder is 40 μm.

[0027] In one embodiment, the silver powder is purchased from Anhui Xuyang New Materials Co., Ltd., the model is WS240, and the particle size is 40 μm.

[0028] During the experiment, the inventors found that the use of silver powder with a particle size of 40μm and a surface-treated model WS240 can improve the appearance performance of the water-based bottom-and-top thick-coating anti-corrosion silver powder paint during application, and increase the construction viscosity and anti-sagging properties to >275μm. The obtained water-based bottom-and-top thick-coating anti-corrosion silver powder paint can give the surfaces of materials such as aluminum, cast iron, and carbon steel a metallic appearance and shielding and corrosion resistance, thereby broadening the application of materials such as aluminum, cast iron, and carbon steel in corrosive environments. The possible reason is that the water-based bottom-and-top thick-coating anti-corrosion silver powder paint provided in this application requires the use of specific types of raw materials to cooperate in order to improve its appearance performance, construction performance, shielding and corrosion resistance.

[0029] In one embodiment, the rheology modifier comprises a rheology wax aid.

[0030] In one embodiment, the rheology modifier is a rheology wax additive.

[0031] In one embodiment, the manufacturer model of the rheological wax additive is BYKA QUATIX 8421 from Germany.

[0032] In one embodiment, the premixing aid includes premixing aid a, premixing aid b, and premixing aid c, wherein the premixing aid b includes an anti-flash rust agent, and the premixing aid c includes a non-ionic polyurethane associative rheology modifier.

[0033] In one embodiment, the mass ratio of the premixing auxiliary agent a, the premixing auxiliary agent b, and the premixing auxiliary agent c is 70:7:19.

[0034] In one embodiment, the premix auxiliary agent a includes dipropylene glycol methyl ether and deionized water.

[0035] The premixed auxiliary agent a is composed of dipropylene glycol methyl ether and deionized water, and the mass ratio of the dipropylene glycol methyl ether to the deionized water is 1:1.

[0036] In one embodiment, the preparation method of the premix auxiliary agent a is to uniformly mix propylene glycol methyl ether and deionized water at a stirring speed of 300 rpm to obtain the premix auxiliary agent a.

[0037] In one embodiment, the premixed auxiliary agent b includes an anti-flash rust agent and deionized water.

[0038] In one embodiment, the anti-flash rust agent is manufactured by the American Raybo anti-flash rust agent RAYB060.

[0039] In one embodiment, the premixed auxiliary agent b consists of an anti-flash rust agent and deionized water, and the mass ratio of the deionized water to the anti-flash rust agent is 1:2.5.

[0040] In one embodiment, the preparation method of the premixed auxiliary agent b is to uniformly mix the flash rust inhibitor and deionized water at a stirring speed of 300 rpm to obtain the premixed auxiliary agent b.

[0041] In one embodiment, the premixed auxiliary agent c includes a non-ionic polyurethane associative rheology modifier and deionized water.

[0042] In one embodiment, the nonionic polyurethane associative rheology modifier is manufactured by Borchers BorchiGel0620 from Germany.

[0043] During the experiment, the inventor found that using bentonite of model BENTONE EW from Hemmings, USA as the raw material in the pre-dispersed slurry, in combination with a non-ionic polyurethane associative rheology modifier, especially a non-ionic polyurethane associative rheology modifier of model Borchers Borchi Gel 0620 from Germany, can improve the water-based base-to-surface thick-coating anti-corrosion silver powder paint to obtain a thick coating without bubbles during application.

[0044] The premixed auxiliary agent c is composed of a nonionic polyurethane associative rheology modifier and deionized water, and the mass ratio of the nonionic polyurethane associative rheology modifier to the deionized water is 1:2.8.

[0045] The preparation method of the premixed auxiliary agent C is to uniformly mix a nonionic polyurethane associative rheology modifier and deionized water at a stirring speed of 300 rpm to obtain the premixed auxiliary agent C.

[0046] In order to improve the anti-corrosion performance, weather resistance and adhesion performance of water-based base and surface thick coating anti-corrosion silver powder paint, the inventors found during the experiment that by using epoxy emulsion with an epoxy equivalent of 1010±50g / Eq, silane compound, wetting agent and anti-flash rust agent for coordination, the weight ratio of the epoxy emulsion, silane compound, wetting agent and anti-flash rust agent is 52:0.5:0.3:0.5, especially the water-based base and surface thick coating anti-corrosion silver powder paint obtained by using water-based epoxy emulsion model AQUAER-3011 and silane compound model Maitu silane COATOSILMP200, Digo wetting agent 4100 and anti-flash rust agent RAYB060 for coordination, the anti-corrosion performance, weather resistance and adhesion performance of the paint can be improved.

[0047] The second aspect of the present invention provides a method for preparing a water-based base-and-surface thick-coating anti-corrosion silver powder paint, comprising the following steps:

[0048] The epoxy emulsion, the blending aid, the pre-dispersed slurry, the silver powder pre-mixed slurry, the rheology modifier and the pre-mixed aid are mixed to obtain a water-based base and surface all-in-one thick coating anti-corrosion silver powder paint.

[0049] The third aspect of the present invention provides an application of a water-based base and surface thick coating anti-corrosion silver powder paint, which is used in the field of anti-corrosion technology. The water-based base and surface thick coating anti-corrosion silver powder paint needs to be mixed with a curing agent when used.

[0050] Beneficial Effects

[0051] 1. The water-based bottom-and-top thick-coating anti-corrosion silver powder paint provided by the present invention is environmentally friendly, has a super thick coating without bubble film thickness, good construction performance, and long-term anti-corrosion performance.

[0052] 2. The water-based base and surface thick coating anti-corrosion silver powder paint provided in this application has good long-term corrosion resistance and weather resistance.

[0053] 3. The water-based base and surface all-in-one thick coating anti-corrosion silver powder paint provided in this application has excellent adhesion performance.

[0054] 4. The water-based base-top thick-coat anti-corrosion silver powder paint provided in this application is environmentally friendly and dries quickly. It can be better applied to the surfaces of materials such as aluminum, cast iron, and carbon steel for surface corrosion protection, broadening the application of materials such as aluminum, cast iron, and carbon steel in corrosive environments.

[0055] 5. The water-based base-top thick-coat anti-corrosion silver powder paint provided in this application can give the surface of materials such as aluminum, cast iron, and carbon steel a metallic appearance and shielding properties.

[0056] 6. The water-based base and surface thick coating anti-corrosion silver powder paint aluminum plate provided in this application has a salt spray resistance of 1000 hours, and the cold-rolled plate has a salt spray resistance of 1500 hours. The dry film thickness obtained by a single thick coating can reach 100μm. DETAILED DESCRIPTION

[0057] Example 1

[0058] The first aspect of the present embodiment provides a water-based base and surface thick-coat anti-corrosion silver powder paint. Calculated by mass percentage, its preparation raw materials include 52% epoxy emulsion, 2.8% blending aid, 17.6% pre-dispersed slurry, 16% silver powder premix slurry, 1.5% rheology modifier, and the premixed aid is supplemented to 100%.

[0059] The epoxy emulsion was purchased from Huangshan Liangu New Material Technology Co., Ltd. and the model number is epoxy emulsion BANCO2092.

[0060] The blending aid consists of a defoamer, a leveling agent, a silane compound, and a wetting agent, and the mass ratio of the defoamer, the leveling agent, the silane compound, and the wetting agent is 8:12:5:3.

[0061] The defoamer used is BASF defoamer 104E.

[0062] The brands of the leveling agent used are German BYK346, German BYK-024, German TEGOGLIDE100, and German TEGO 410.

[0063] The brands are German BYK346, German BYK-024, German TEGO GLIDE100 and German TEGO 410 leveling agents, and the mass ratio is 6:3:1:2.

[0064] The silane compound is of the brand COATOSILMP200 produced by Momentive Silane of the United States.

[0065] The brand of the wetting agent used is German Digo wetting agent 4100.

[0066] The pre-dispersed slurry consists of bentonite and water.

[0067] The water is deionized water, and the mass ratio of the bentonite to the deionized water is 8:168.

[0068] The brand of the bentonite used is American Hemmings bentonite BENTONE EW.

[0069] The preparation method of the pre-dispersed slurry comprises: adding bentonite into deionized water and stirring at a stirring speed of 500 rpm, then increasing the stirring speed to 1500 rpm, and stopping stirring when a transparent state is reached and a fineness of 40 μm to obtain a dispersed slurry.

[0070] The silver powder premix slurry consists of a solvent and silver powder.

[0071] The solvents are deionized water and propylene glycol methyl ether.

[0072] The mass ratio of propylene glycol methyl ether, deionized water and silver powder in the silver powder premix is ​​6:3:7.

[0073] The preparation method of the silver powder premix slurry comprises: mixing propylene glycol methyl ether and deionized water at a stirring speed of 300 rpm, adding silver powder and stirring, increasing the stirring speed to 600 rpm, and stirring and dispersing for 40 minutes to obtain the silver powder premix slurry.

[0074] The silver powder is surface treated and is purchased from Anhui Xuyang New Materials Co., Ltd. The model is WS240 and the particle size is 40 μm.

[0075] The rheology modifier is a rheology wax additive.

[0076] The manufacturer model of the rheological wax additive is BYKA QUATIX 8421 from Germany.

[0077] The premixed auxiliary agent consists of a premixed auxiliary agent a, a premixed auxiliary agent b, and a premixed auxiliary agent c, and the mass ratio of the premixed auxiliary agent a, the premixed auxiliary agent b, and the premixed auxiliary agent c is 70:7:19.

[0078] The premixed auxiliary agent a is composed of dipropylene glycol methyl ether and deionized water, and the mass ratio of the dipropylene glycol methyl ether to the deionized water is 1:1.

[0079] The preparation method of the premixed auxiliary agent a is to uniformly mix propylene glycol methyl ether and deionized water at a stirring speed of 300 rpm to obtain the premixed auxiliary agent a.

[0080] The premixed auxiliary agent b is composed of an anti-flash rust agent and deionized water, and the mass ratio of the deionized water to the anti-flash rust agent is 1:2.5.

[0081] The manufacturer's brand of the anti-flash rust agent used is American Raybo anti-flash rust agent RAYB060.

[0082] The preparation method of the premixed auxiliary agent b is to uniformly mix the flash rust inhibitor and deionized water at a stirring speed of 300 rpm to obtain the premixed auxiliary agent b.

[0083] The premixed auxiliary agent c is composed of a nonionic polyurethane associative rheology modifier and deionized water, and the mass ratio of the nonionic polyurethane associative rheology modifier to the deionized water is 1:2.8.

[0084] The non-ionic polyurethane associative rheology modifier adopts a manufacturer's brand including Borchers Borchi Gel 0620 from Germany.

[0085] The preparation method of the premixed auxiliary agent C is to uniformly mix a nonionic polyurethane associative rheology modifier and deionized water at a stirring speed of 300 rpm to obtain the premixed auxiliary agent C.

[0086] The second aspect of the present embodiment provides a method for preparing a water-based base-and-surface thick-coating anti-corrosion silver powder paint, comprising the following steps:

[0087] The epoxy emulsion, the blending aid, the pre-dispersed slurry, the silver powder premixed slurry, the rheology modifier and the premixed aid are stirred and mixed to obtain a water-based bottom and surface all-in-one thick coating anti-corrosion silver powder paint. The stirring speed is 500 rpm and the stirring time is 30 minutes.

[0088] The third aspect of the present embodiment provides an application of a water-based base and surface thick coating anti-corrosion silver powder paint, which is used in the field of anti-corrosion technology. The water-based base and surface thick coating anti-corrosion silver powder paint needs to be mixed with a curing agent when used.

[0089] The mass ratio of the water-based base and surface all-in-one thick-coating anti-corrosion silver powder paint to the curing agent is 1:0.2.

[0090] The curing agent is an epoxy curing agent, which is purchased from Jiangsu Fuqisen New Materials Co., Ltd. and has a model number of epoxy curing agent AQUAER-3126.

[0091] Example 2

[0092] The first aspect of the present embodiment provides a water-based base and surface thick-coat anti-corrosion silver powder paint. Calculated by mass percentage, its preparation raw materials include 52% epoxy emulsion, 2.8% blending aid, 17.6% pre-dispersed slurry, 16% silver powder premix slurry, 1.5% rheology modifier, and the premixed aid is supplemented to 100%.

[0093] The epoxy emulsion consists of epoxy emulsion with model BANC O2092 and epoxy emulsion with model AQUAER-3012, and the mass ratio of the epoxy emulsion with model BANC O2092 and the epoxy emulsion with model AQUAER-3012 is 1:1.

[0094] The manufacturer of the BANC O2092 epoxy emulsion is Huangshan Liangu New Materials Technology Co., Ltd.

[0095] The manufacturer of the AQUAER-3012 epoxy emulsion is Jiangsu Fuqisen New Materials Co., Ltd.

[0096] The blending aid consists of a defoamer, a leveling agent, a silane compound, and a wetting agent, and the mass ratio of the defoamer, the leveling agent, the silane compound, and the wetting agent is 8:12:5:3.

[0097] The defoamer used is BASF defoamer 104E.

[0098] The brands of the leveling agent used are German BYK346, German BYK-024, German TEGOGLIDE100, and German TEGO 410.

[0099] The brands are German BYK346, German BYK-024, German TEGO GLIDE100 and German TEGO 410 leveling agents, and the mass ratio is 6:3:1:2.

[0100] The silane compound is of the brand COATOSILMP200 produced by Momentive Silane of the United States.

[0101] The brand of the wetting agent used is German Digo wetting agent 4100.

[0102] The pre-dispersed slurry consists of bentonite and water.

[0103] The water is deionized water, and the mass ratio of the bentonite to the deionized water is 8:168.

[0104] The brand of the bentonite used is American Hemmings bentonite BENTONE EW.

[0105] The preparation method of the pre-dispersed slurry comprises: adding bentonite into deionized water and stirring at a stirring speed of 500 rpm, then increasing the stirring speed to 1500 rpm, and stopping stirring when a transparent state is reached and a fineness of 40 μm to obtain a dispersed slurry.

[0106] The silver powder premix slurry consists of a solvent and silver powder.

[0107] The solvents are deionized water and propylene glycol methyl ether.

[0108] The mass ratio of propylene glycol methyl ether, deionized water and silver powder in the silver powder premix is ​​6:3:7.

[0109] The preparation method of the silver powder premix slurry comprises: mixing propylene glycol methyl ether and deionized water at a stirring speed of 300 rpm, adding silver powder and stirring, increasing the stirring speed to 600 rpm, and stirring and dispersing for 40 minutes to obtain the silver powder premix slurry.

[0110] The silver powder is surface treated and is purchased from Anhui Xuyang New Materials Co., Ltd. The model is WS240 and the particle size is 40 μm.

[0111] The rheology modifier is a rheology wax additive.

[0112] The manufacturer model of the rheological wax additive is BYKA QUATIX 8421 from Germany.

[0113] The premixed auxiliary agent consists of a premixed auxiliary agent a, a premixed auxiliary agent b, and a premixed auxiliary agent c, and the mass ratio of the premixed auxiliary agent a, the premixed auxiliary agent b, and the premixed auxiliary agent c is 70:7:19.

[0114] The premixed auxiliary agent a is composed of dipropylene glycol methyl ether and deionized water, and the mass ratio of the dipropylene glycol methyl ether to the deionized water is 1:1.

[0115] The preparation method of the premixed auxiliary agent a is to uniformly mix propylene glycol methyl ether and deionized water at a stirring speed of 300 rpm to obtain the premixed auxiliary agent a.

[0116] The premixed auxiliary agent b is composed of an anti-flash rust agent and deionized water, and the mass ratio of the deionized water to the anti-flash rust agent is 1:2.5.

[0117] The manufacturer's brand of the anti-flash rust agent used is American Raybo anti-flash rust agent RAYB060.

[0118] The preparation method of the premixed auxiliary agent b is to uniformly mix the flash rust inhibitor and deionized water at a stirring speed of 300 rpm to obtain the premixed auxiliary agent b.

[0119] The premixed auxiliary agent c is composed of a nonionic polyurethane associative rheology modifier and deionized water, and the mass ratio of the nonionic polyurethane associative rheology modifier to the deionized water is 1:2.8.

[0120] The non-ionic polyurethane associative rheology modifier adopts a manufacturer's brand including Borchers Borchi Gel 0620 from Germany.

[0121] The preparation method of the premixed auxiliary agent C is to uniformly mix a nonionic polyurethane associative rheology modifier and deionized water at a stirring speed of 300 rpm to obtain the premixed auxiliary agent C.

[0122] The second aspect of the present embodiment provides a method for preparing a water-based base-and-surface thick-coating anti-corrosion silver powder paint, comprising the following steps:

[0123] The epoxy emulsion, the blending aid, the pre-dispersed slurry, the silver powder premixed slurry, the rheology modifier and the premixed aid are stirred and mixed to obtain a water-based bottom and surface all-in-one thick coating anti-corrosion silver powder paint. The stirring speed is 500 rpm and the stirring time is 30 minutes.

[0124] The third aspect of the present embodiment provides an application of a water-based base and surface thick coating anti-corrosion silver powder paint, which is used in the field of anti-corrosion technology. The water-based base and surface thick coating anti-corrosion silver powder paint needs to be mixed with a curing agent when used.

[0125] The mass ratio of the water-based base and surface all-in-one thick-coating anti-corrosion silver powder paint to the curing agent is 1:0.2.

[0126] The curing agent is an epoxy curing agent, which is purchased from Jiangsu Fuqisen New Materials Co., Ltd. and has a model number of epoxy curing agent AQUAER-3126.

[0127] Example 3

[0128] The first aspect of the present embodiment provides a water-based base and surface thick-coat anti-corrosion silver powder paint. Calculated by mass percentage, its preparation raw materials include 52% epoxy emulsion, 2.8% blending aid, 17.6% pre-dispersed slurry, 16% silver powder premix slurry, 1.5% rheology modifier, and the premixed aid is supplemented to 100%.

[0129] The epoxy emulsion consists of epoxy emulsion with model BANC O2092 and epoxy emulsion with model AQUAER-3011, and the mass ratio of the epoxy emulsion with model BANC O2092 and the epoxy emulsion with model AQUAER-3011 is 1:1.

[0130] The manufacturer of the BANC O2092 epoxy emulsion is Huangshan Liangu New Materials Technology Co., Ltd.

[0131] The manufacturer of the AQUAER-3011 epoxy emulsion is Jiangsu Fuqisen New Materials Co., Ltd.

[0132] The blending aid consists of a defoamer, a leveling agent, a silane compound, and a wetting agent, and the mass ratio of the defoamer, the leveling agent, the silane compound, and the wetting agent is 8:12:5:3.

[0133] The defoamer used is BASF defoamer 104E.

[0134] The brands of the leveling agent used are German BYK346, German BYK-024, German TEGOGLIDE100, and German TEGO 410.

[0135] The brands are German BYK346, German BYK-024, German TEGO GLIDE100 and German TEGO 410 leveling agents, and the mass ratio is 6:3:1:2.

[0136] The silane compound is of the brand COATOSILMP200 produced by Momentive Silane of the United States.

[0137] The brand of the wetting agent used is German Digo wetting agent 4100.

[0138] The pre-dispersed slurry consists of bentonite and water.

[0139] The water is deionized water, and the mass ratio of the bentonite to the deionized water is 8:168.

[0140] The brand of the bentonite used is American Hemmings bentonite BENTONE EW.

[0141] The preparation method of the pre-dispersed slurry comprises: adding bentonite into deionized water and stirring at a stirring speed of 500 rpm, then increasing the stirring speed to 1500 rpm, and stopping stirring when a transparent state is reached and a fineness of 40 μm to obtain a dispersed slurry.

[0142] The silver powder premix slurry consists of a solvent and silver powder.

[0143] The solvents are deionized water and propylene glycol methyl ether.

[0144] The mass ratio of propylene glycol methyl ether, deionized water and silver powder in the silver powder premix is ​​6:3:7.

[0145] The preparation method of the silver powder premix slurry comprises: mixing propylene glycol methyl ether and deionized water at a stirring speed of 300 rpm, adding silver powder and stirring, increasing the stirring speed to 600 rpm, and stirring and dispersing for 40 minutes to obtain the silver powder premix slurry.

[0146] The silver powder is surface treated and is purchased from Anhui Xuyang New Materials Co., Ltd. The model is WS240 and the particle size is 40 μm.

[0147] The rheology modifier is a rheology wax additive.

[0148] The manufacturer model of the rheological wax additive is BYKA QUATIX 8421 from Germany.

[0149] The premixed auxiliary agent consists of a premixed auxiliary agent a, a premixed auxiliary agent b, and a premixed auxiliary agent c, and the mass ratio of the premixed auxiliary agent a, the premixed auxiliary agent b, and the premixed auxiliary agent c is 70:7:19.

[0150] The premixed auxiliary agent a is composed of dipropylene glycol methyl ether and deionized water, and the mass ratio of the dipropylene glycol methyl ether to the deionized water is 1:1.

[0151] The preparation method of the premixed auxiliary agent a is to uniformly mix propylene glycol methyl ether and deionized water at a stirring speed of 300 rpm to obtain the premixed auxiliary agent a.

[0152] The premixed auxiliary agent b is composed of an anti-flash rust agent and deionized water, and the mass ratio of the deionized water to the anti-flash rust agent is 1:2.5.

[0153] The manufacturer's brand of the anti-flash rust agent used is American Raybo anti-flash rust agent RAYB060.

[0154] The preparation method of the premixed auxiliary agent b is to uniformly mix the flash rust inhibitor and deionized water at a stirring speed of 300 rpm to obtain the premixed auxiliary agent b.

[0155] The premixed auxiliary agent c is composed of a nonionic polyurethane associative rheology modifier and deionized water, and the mass ratio of the nonionic polyurethane associative rheology modifier to the deionized water is 1:2.8.

[0156] The non-ionic polyurethane associative rheology modifier adopts a manufacturer's brand including Borchers Borchi Gel 0620 from Germany.

[0157] The preparation method of the premixed auxiliary agent C is to uniformly mix a nonionic polyurethane associative rheology modifier and deionized water at a stirring speed of 300 rpm to obtain the premixed auxiliary agent C.

[0158] The second aspect of the present embodiment provides a method for preparing a water-based base-and-surface thick-coating anti-corrosion silver powder paint, comprising the following steps:

[0159] The epoxy emulsion, the blending aid, the pre-dispersed slurry, the silver powder premixed slurry, the rheology modifier and the premixed aid are stirred and mixed to obtain a water-based bottom and surface all-in-one thick coating anti-corrosion silver powder paint. The stirring speed is 500 rpm and the stirring time is 30 minutes.

[0160] The third aspect of the present embodiment provides an application of a water-based base and surface thick coating anti-corrosion silver powder paint, which is used in the field of anti-corrosion technology. The water-based base and surface thick coating anti-corrosion silver powder paint needs to be mixed with a curing agent when used.

[0161] The mass ratio of the water-based base and surface all-in-one thick-coating anti-corrosion silver powder paint to the curing agent is 1:0.2.

[0162] The curing agent is an epoxy curing agent, which is purchased from Jiangsu Fuqisen New Materials Co., Ltd. and has a model number of epoxy curing agent AQUAER-3126.

[0163] Example 4

[0164] The first aspect of the present embodiment provides a water-based base and surface thick-coat anti-corrosion silver powder paint. Calculated by mass percentage, its preparation raw materials include 52% epoxy emulsion, 2.8% blending aid, 17.6% pre-dispersed slurry, 16% silver powder premix slurry, 1.5% rheology modifier, and the premixed aid is supplemented to 100%.

[0165] The model of the epoxy emulsion is AQUAER-3012 epoxy emulsion, and the manufacturer is Jiangsu Fuqisen New Materials Co., Ltd.

[0166] The blending aid consists of a defoamer, a leveling agent, a silane compound, and a wetting agent, and the mass ratio of the defoamer, the leveling agent, the silane compound, and the wetting agent is 8:12:5:3.

[0167] The defoamer used is BASF defoamer 104E.

[0168] The brands of the leveling agent used are German BYK346, German BYK-024, German TEGOGLIDE100, and German TEGO 410.

[0169] The brands are German BYK346, German BYK-024, German TEGO GLIDE100 and German TEGO 410 leveling agents, and the mass ratio is 6:3:1:2.

[0170] The silane compound is of the brand COATOSILMP200 produced by Momentive Silane of the United States.

[0171] The brand of the wetting agent used is German Digo wetting agent 4100.

[0172] The pre-dispersed slurry consists of bentonite and water.

[0173] The water is deionized water, and the mass ratio of the bentonite to the deionized water is 8:168.

[0174] The brand of the bentonite used is American Hemmings bentonite BENTONE EW.

[0175] The preparation method of the pre-dispersed slurry comprises: adding bentonite into deionized water and stirring at a stirring speed of 500 rpm, then increasing the stirring speed to 1500 rpm, and stopping stirring when a transparent state is reached and a fineness of 40 μm to obtain a dispersed slurry.

[0176] The silver powder premix slurry consists of a solvent and silver powder.

[0177] The solvents are deionized water and propylene glycol methyl ether.

[0178] The mass ratio of propylene glycol methyl ether, deionized water and silver powder in the silver powder premix is ​​6:3:7.

[0179] The preparation method of the silver powder premix slurry comprises: mixing propylene glycol methyl ether and deionized water at a stirring speed of 300 rpm, adding silver powder and stirring, increasing the stirring speed to 600 rpm, and stirring and dispersing for 40 minutes to obtain the silver powder premix slurry.

[0180] The silver powder is surface treated and is purchased from Anhui Xuyang New Materials Co., Ltd. The model is WS240 and the particle size is 40 μm.

[0181] The rheology modifier is a rheology wax additive.

[0182] The manufacturer model of the rheological wax additive is BYKA QUATIX 8421 from Germany.

[0183] The premixed auxiliary agent consists of a premixed auxiliary agent a, a premixed auxiliary agent b, and a premixed auxiliary agent c, and the mass ratio of the premixed auxiliary agent a, the premixed auxiliary agent b, and the premixed auxiliary agent c is 70:7:19.

[0184] The premixed auxiliary agent a is composed of dipropylene glycol methyl ether and deionized water, and the mass ratio of the dipropylene glycol methyl ether to the deionized water is 1:1.

[0185] The preparation method of the premixed auxiliary agent a is to uniformly mix propylene glycol methyl ether and deionized water at a stirring speed of 300 rpm to obtain the premixed auxiliary agent a.

[0186] The premixed auxiliary agent b is composed of an anti-flash rust agent and deionized water, and the mass ratio of the deionized water to the anti-flash rust agent is 1:2.5.

[0187] The manufacturer's brand of the anti-flash rust agent used is American Raybo anti-flash rust agent RAYB060.

[0188] The preparation method of the premixed auxiliary agent b is to uniformly mix the flash rust inhibitor and deionized water at a stirring speed of 300 rpm to obtain the premixed auxiliary agent b.

[0189] The premixed auxiliary agent c is composed of a nonionic polyurethane associative rheology modifier and deionized water, and the mass ratio of the nonionic polyurethane associative rheology modifier to the deionized water is 1:2.8.

[0190] The non-ionic polyurethane associative rheology modifier adopts a manufacturer's brand including Borchers Borchi Gel 0620 from Germany.

[0191] The preparation method of the premixed auxiliary agent C is to uniformly mix a nonionic polyurethane associative rheology modifier and deionized water at a stirring speed of 300 rpm to obtain the premixed auxiliary agent C.

[0192] The second aspect of the present embodiment provides a method for preparing a water-based base-and-surface thick-coating anti-corrosion silver powder paint, comprising the following steps:

[0193] The epoxy emulsion, the blending aid, the pre-dispersed slurry, the silver powder premixed slurry, the rheology modifier and the premixed aid are stirred and mixed to obtain a water-based bottom and surface all-in-one thick coating anti-corrosion silver powder paint. The stirring speed is 500 rpm and the stirring time is 30 minutes.

[0194] The third aspect of the present embodiment provides an application of a water-based base and surface thick coating anti-corrosion silver powder paint, which is used in the field of anti-corrosion technology. The water-based base and surface thick coating anti-corrosion silver powder paint needs to be mixed with a curing agent when used.

[0195] The mass ratio of the water-based base and surface all-in-one thick-coating anti-corrosion silver powder paint to the curing agent is 1:0.2.

[0196] The curing agent is an epoxy curing agent, which is purchased from Jiangsu Fuqisen New Materials Co., Ltd. and has a model number of epoxy curing agent AQUAER-3126.

[0197] Example 5

[0198] The first aspect of the present embodiment provides a water-based base and surface thick-coat anti-corrosion silver powder paint. Calculated by mass percentage, its preparation raw materials include 52% epoxy emulsion, 2.8% blending aid, 17.6% pre-dispersed slurry, 16% silver powder premix slurry, 1.5% rheology modifier, and the premixed aid is supplemented to 100%.

[0199] The epoxy equivalent of the epoxy emulsion is 1010±50 g / Eq.

[0200] The epoxy emulsion was purchased from Jiangsu Fuqisen New Materials Co., Ltd., and the model number is AQUAER-3011.

[0201] The blending aid consists of a defoamer, a leveling agent, a silane compound, and a wetting agent, and the mass ratio of the defoamer, the leveling agent, the silane compound, and the wetting agent is 8:12:5:3.

[0202] The defoamer used is BASF defoamer 104E.

[0203] The brands of the leveling agent used are German BYK346, German BYK-024, German TEGOGLIDE100, and German TEGO 410.

[0204] The brands are German BYK346, German BYK-024, German TEGO GLIDE100 and German TEGO 410 leveling agents, and the mass ratio is 6:3:1:2.

[0205] The silane compound is of the brand COATOSILMP200 produced by Momentive Silane of the United States.

[0206] The brand of the wetting agent used is German Digo wetting agent 4100.

[0207] The pre-dispersed slurry consists of bentonite and water.

[0208] The water is deionized water, and the mass ratio of the bentonite to the deionized water is 8:168.

[0209] The brand of the bentonite used is American Hemmings bentonite BENTONE EW.

[0210] The preparation method of the pre-dispersed slurry comprises: adding bentonite into deionized water and stirring at a stirring speed of 500 rpm, then increasing the stirring speed to 1500 rpm, and stopping stirring when a transparent state is reached and a fineness of 40 μm to obtain a dispersed slurry.

[0211] The silver powder premix slurry consists of a solvent and silver powder.

[0212] The solvents are deionized water and propylene glycol methyl ether.

[0213] The mass ratio of propylene glycol methyl ether, deionized water and silver powder in the silver powder premix is ​​6:3:7.

[0214] The preparation method of the silver powder premix slurry comprises: mixing propylene glycol methyl ether and deionized water at a stirring speed of 300 rpm, adding silver powder and stirring, increasing the stirring speed to 600 rpm, and stirring and dispersing for 40 minutes to obtain the silver powder premix slurry.

[0215] The silver powder is surface treated and is purchased from Anhui Xuyang New Materials Co., Ltd. The model is WS240 and the particle size is 40 μm.

[0216] The rheology modifier is a rheology wax additive.

[0217] The manufacturer model of the rheological wax additive is BYKA QUATIX 8421 from Germany.

[0218] The premixed auxiliary agent consists of a premixed auxiliary agent a, a premixed auxiliary agent b, and a premixed auxiliary agent c, and the mass ratio of the premixed auxiliary agent a, the premixed auxiliary agent b, and the premixed auxiliary agent c is 70:7:19.

[0219] The premixed auxiliary agent a is composed of dipropylene glycol methyl ether and deionized water, and the mass ratio of the dipropylene glycol methyl ether to the deionized water is 1:1.

[0220] The preparation method of the premixed auxiliary agent a is to uniformly mix propylene glycol methyl ether and deionized water at a stirring speed of 300 rpm to obtain the premixed auxiliary agent a.

[0221] The premixed auxiliary agent b is composed of an anti-flash rust agent and deionized water, and the mass ratio of the deionized water to the anti-flash rust agent is 1:2.5.

[0222] The manufacturer's brand of the anti-flash rust agent used is American Raybo anti-flash rust agent RAYB060.

[0223] The preparation method of the premixed auxiliary agent b is to uniformly mix the flash rust inhibitor and deionized water at a stirring speed of 300 rpm to obtain the premixed auxiliary agent b.

[0224] The premixed auxiliary agent c is composed of a nonionic polyurethane associative rheology modifier and deionized water, and the mass ratio of the nonionic polyurethane associative rheology modifier to the deionized water is 1:2.8.

[0225] The non-ionic polyurethane associative rheology modifier adopts a manufacturer's brand including Borchers Borchi Gel 0620 from Germany.

[0226] The preparation method of the premixed auxiliary agent C is to uniformly mix a nonionic polyurethane associative rheology modifier and deionized water at a stirring speed of 300 rpm to obtain the premixed auxiliary agent C.

[0227] The second aspect of the present embodiment provides a method for preparing a water-based base-and-surface thick-coating anti-corrosion silver powder paint, comprising the following steps:

[0228] The epoxy emulsion, the blending aid, the pre-dispersed slurry, the silver powder premixed slurry, the rheology modifier and the premixed aid are stirred and mixed to obtain a water-based bottom and surface all-in-one thick coating anti-corrosion silver powder paint. The stirring speed is 500 rpm and the stirring time is 30 minutes.

[0229] The third aspect of the present embodiment provides an application of a water-based base and surface thick coating anti-corrosion silver powder paint, which is used in the field of anti-corrosion technology. The water-based base and surface thick coating anti-corrosion silver powder paint needs to be mixed with a curing agent when used.

[0230] The mass ratio of the water-based base and surface all-in-one thick-coating anti-corrosion silver powder paint to the curing agent is 1:0.2.

[0231] The curing agent is an epoxy curing agent, which is purchased from Jiangsu Fuqisen New Materials Co., Ltd. and has a model number of epoxy curing agent AQUAER-3126.

[0232] Example 6

[0233] The first aspect of the present embodiment provides a water-based base and surface thick-coat anti-corrosion silver powder paint. Calculated by mass percentage, its preparation raw materials include 52% epoxy emulsion, 2.8% blending aid, 17.6% pre-dispersed slurry, 16% silver powder premix slurry, 1.5% rheology modifier, and the premixed aid is supplemented to 100%.

[0234] The epoxy emulsion consists of epoxy emulsion with model number AQUAER-3012 and epoxy emulsion with model number AQUAER-3011, and the mass ratio of the epoxy emulsion with model number AQUAER-3012 and the epoxy emulsion with model number AQUAER-3011 is 1:1.

[0235] The manufacturer of the AQUAER-3012 epoxy emulsion is Jiangsu Fuqisen New Materials Co., Ltd.

[0236] The manufacturer of the AQUAER-3011 epoxy emulsion is Jiangsu Fuqisen New Materials Co., Ltd.

[0237] The blending aid consists of a defoamer, a leveling agent, a silane compound, and a wetting agent, and the mass ratio of the defoamer, the leveling agent, the silane compound, and the wetting agent is 8:12:5:3.

[0238] The defoamer used is BASF defoamer 104E.

[0239] The brands of the leveling agent used are German BYK346, German BYK-024, German TEGOGLIDE100, and German TEGO 410.

[0240] The brands are German BYK346, German BYK-024, German TEGO GLIDE100 and German TEGO 410 leveling agents, and the mass ratio is 6:3:1:2.

[0241] The silane compound is of the brand COATOSILMP200 produced by Momentive Silane of the United States.

[0242] The brand of the wetting agent used is German Digo wetting agent 4100.

[0243] The pre-dispersed slurry consists of bentonite and water.

[0244] The water is deionized water, and the mass ratio of the bentonite to the deionized water is 8:168.

[0245] The brand of the bentonite used is American Hemmings bentonite BENTONE EW.

[0246] The preparation method of the pre-dispersed slurry comprises: adding bentonite into deionized water and stirring at a stirring speed of 500 rpm, then increasing the stirring speed to 1500 rpm, and stopping stirring when a transparent state is reached and a fineness of 40 μm to obtain a dispersed slurry.

[0247] The silver powder premix slurry consists of a solvent and silver powder.

[0248] The solvents are deionized water and propylene glycol methyl ether.

[0249] The mass ratio of propylene glycol methyl ether, deionized water and silver powder in the silver powder premix is ​​6:3:7.

[0250] The preparation method of the silver powder premix slurry comprises: mixing propylene glycol methyl ether and deionized water at a stirring speed of 300 rpm, adding silver powder and stirring, increasing the stirring speed to 600 rpm, and stirring and dispersing for 40 minutes to obtain the silver powder premix slurry.

[0251] The silver powder is surface treated and is purchased from Anhui Xuyang New Materials Co., Ltd. The model is WS240 and the particle size is 40 μm.

[0252] The rheology modifier is a rheology wax additive.

[0253] The manufacturer model of the rheological wax additive is BYKA QUATIX 8421 from Germany.

[0254] The premixed auxiliary agent consists of a premixed auxiliary agent a, a premixed auxiliary agent b, and a premixed auxiliary agent c, and the mass ratio of the premixed auxiliary agent a, the premixed auxiliary agent b, and the premixed auxiliary agent c is 70:7:19.

[0255] The premixed auxiliary agent a is composed of dipropylene glycol methyl ether and deionized water, and the mass ratio of the dipropylene glycol methyl ether to the deionized water is 1:1.

[0256] The preparation method of the premixed auxiliary agent a is to uniformly mix propylene glycol methyl ether and deionized water at a stirring speed of 300 rpm to obtain the premixed auxiliary agent a.

[0257] The premixed auxiliary agent b is composed of an anti-flash rust agent and deionized water, and the mass ratio of the deionized water to the anti-flash rust agent is 1:2.5.

[0258] The manufacturer's brand of the anti-flash rust agent used is American Raybo anti-flash rust agent RAYB060.

[0259] The preparation method of the premixed auxiliary agent b is to uniformly mix the flash rust inhibitor and deionized water at a stirring speed of 300 rpm to obtain the premixed auxiliary agent b.

[0260] The premixed auxiliary agent c is composed of a nonionic polyurethane associative rheology modifier and deionized water, and the mass ratio of the nonionic polyurethane associative rheology modifier to the deionized water is 1:2.8.

[0261] The non-ionic polyurethane associative rheology modifier adopts a manufacturer's brand including Borchers Borchi Gel 0620 from Germany.

[0262] The preparation method of the premixed auxiliary agent C is to uniformly mix a nonionic polyurethane associative rheology modifier and deionized water at a stirring speed of 300 rpm to obtain the premixed auxiliary agent C.

[0263] The second aspect of the present embodiment provides a method for preparing a water-based base-and-surface thick-coating anti-corrosion silver powder paint, comprising the following steps:

[0264] The epoxy emulsion, the blending aid, the pre-dispersed slurry, the silver powder premixed slurry, the rheology modifier and the premixed aid are stirred and mixed to obtain a water-based bottom and surface all-in-one thick coating anti-corrosion silver powder paint. The stirring speed is 500 rpm and the stirring time is 30 minutes.

[0265] The third aspect of the present embodiment provides an application of a water-based base and surface thick coating anti-corrosion silver powder paint, which is used in the field of anti-corrosion technology. The water-based base and surface thick coating anti-corrosion silver powder paint needs to be mixed with a curing agent when used.

[0266] The mass ratio of the water-based base and surface all-in-one thick-coating anti-corrosion silver powder paint to the curing agent is 1:0.2.

[0267] The curing agent is an epoxy curing agent, which is purchased from Jiangsu Fuqisen New Materials Co., Ltd. and has a model number of epoxy curing agent AQUAER-3126.

[0268] Example 7

[0269] The first aspect of the present embodiment provides a water-based base and surface thick-coat anti-corrosion silver powder paint. Calculated by mass percentage, its preparation raw materials include 52% epoxy emulsion, 2.8% blending aid, 17.6% pre-dispersed slurry, 16% silver powder premix slurry, 1.5% rheology modifier, and the premixed aid is supplemented to 100%.

[0270] The epoxy equivalent of the epoxy emulsion is 1010±50 g / Eq.

[0271] The epoxy emulsion was purchased from Jiangsu Fuqisen New Materials Co., Ltd., and the model number is AQUAER-3011.

[0272] The blending aid consists of a defoamer, a leveling agent, a silane compound, and a wetting agent, and the mass ratio of the defoamer, the leveling agent, the silane compound, and the wetting agent is 8:12:5:3.

[0273] The defoamer used is BASF defoamer 104E.

[0274] The brands of the leveling agent used are German BYK346, German BYK-024, German TEGOGLIDE100, and German TEGO 410.

[0275] The brands are German BYK346, German BYK-024, German TEGO GLIDE100 and German TEGO 410 leveling agents, and the mass ratio is 6:3:1:2.

[0276] The silane compound is of the brand COATOSILMP200 produced by Momentive Silane of the United States.

[0277] The brand of the wetting agent used is German Digo wetting agent 4100.

[0278] The pre-dispersed slurry consists of bentonite and water.

[0279] The water is deionized water, and the mass ratio of the bentonite to the deionized water is 8:168.

[0280] The brand of the bentonite used is American Hemmings bentonite BENTONE EW.

[0281] The preparation method of the pre-dispersed slurry comprises: adding bentonite into deionized water and stirring at a stirring speed of 500 rpm, then increasing the stirring speed to 1500 rpm, and stopping stirring when a transparent state is reached and a fineness of 40 μm to obtain a dispersed slurry.

[0282] The silver powder premix slurry consists of a solvent and silver powder.

[0283] The solvents are deionized water and propylene glycol methyl ether.

[0284] The mass ratio of propylene glycol methyl ether, deionized water and silver powder in the silver powder premix is ​​6:3:7.

[0285] The preparation method of the silver powder premix slurry comprises: mixing propylene glycol methyl ether and deionized water at a stirring speed of 300 rpm, adding silver powder and stirring, increasing the stirring speed to 600 rpm, and stirring and dispersing for 40 minutes to obtain the silver powder premix slurry.

[0286] The silver powder is surface treated and is purchased from Anhui Xuyang New Materials Co., Ltd. The model is ZWHD8270 and the particle size is 60 μm.

[0287] The rheology modifier is a rheology wax additive.

[0288] The manufacturer model of the rheological wax additive is BYKA QUATIX 8421 from Germany.

[0289] The premixed auxiliary agent consists of a premixed auxiliary agent a, a premixed auxiliary agent b, and a premixed auxiliary agent c, and the mass ratio of the premixed auxiliary agent a, the premixed auxiliary agent b, and the premixed auxiliary agent c is 70:7:19.

[0290] The premixed auxiliary agent a is composed of dipropylene glycol methyl ether and deionized water, and the mass ratio of the dipropylene glycol methyl ether to the deionized water is 1:1.

[0291] The preparation method of the premixed auxiliary agent a is to uniformly mix propylene glycol methyl ether and deionized water at a stirring speed of 300 rpm to obtain the premixed auxiliary agent a.

[0292] The premixed auxiliary agent b is composed of an anti-flash rust agent and deionized water, and the mass ratio of the deionized water to the anti-flash rust agent is 1:2.5.

[0293] The manufacturer's brand of the anti-flash rust agent used is American Raybo anti-flash rust agent RAYB060.

[0294] The preparation method of the premixed auxiliary agent b is to uniformly mix the flash rust inhibitor and deionized water at a stirring speed of 300 rpm to obtain the premixed auxiliary agent b.

[0295] The premixed auxiliary agent c is composed of a nonionic polyurethane associative rheology modifier and deionized water, and the mass ratio of the nonionic polyurethane associative rheology modifier to the deionized water is 1:2.8.

[0296] The non-ionic polyurethane associative rheology modifier adopts a manufacturer's brand including Borchers Borchi Gel 0620 from Germany.

[0297] The preparation method of the premixed auxiliary agent C is to uniformly mix a nonionic polyurethane associative rheology modifier and deionized water at a stirring speed of 300 rpm to obtain the premixed auxiliary agent C.

[0298] The second aspect of the present embodiment provides a method for preparing a water-based base-and-surface thick-coating anti-corrosion silver powder paint, comprising the following steps:

[0299] The epoxy emulsion, the blending aid, the pre-dispersed slurry, the silver powder premixed slurry, the rheology modifier and the premixed aid are stirred and mixed to obtain a water-based bottom and surface all-in-one thick coating anti-corrosion silver powder paint. The stirring speed is 500 rpm and the stirring time is 30 minutes.

[0300] The third aspect of the present embodiment provides an application of a water-based base and surface thick coating anti-corrosion silver powder paint, which is used in the field of anti-corrosion technology. The water-based base and surface thick coating anti-corrosion silver powder paint needs to be mixed with a curing agent when used.

[0301] The mass ratio of the water-based base and surface all-in-one thick-coating anti-corrosion silver powder paint to the curing agent is 1:0.2.

[0302] The curing agent is an epoxy curing agent, which is purchased from Jiangsu Fuqisen New Materials Co., Ltd. and has a model number of epoxy curing agent AQUAER-3126.

[0303] Example 8

[0304] The first aspect of the present embodiment provides a water-based base and surface thick-coat anti-corrosion silver powder paint. Calculated by mass percentage, its preparation raw materials include 52% epoxy emulsion, 2.8% blending aid, 17.6% pre-dispersed slurry, 16% silver powder premix slurry, 1.5% rheology modifier, and the premixed aid is supplemented to 100%.

[0305] The epoxy equivalent of the epoxy emulsion is 1010±50 g / Eq.

[0306] The epoxy emulsion was purchased from Jiangsu Fuqisen New Materials Co., Ltd., and the model number is AQUAER-3011.

[0307] The blending aid consists of a defoamer, a leveling agent, a silane compound, and a wetting agent, and the mass ratio of the defoamer, the leveling agent, the silane compound, and the wetting agent is 8:12:5:3.

[0308] The defoamer used is BASF defoamer 104E.

[0309] The brands of the leveling agent used are German BYK346, German BYK-024, German TEGOGLIDE100, and German TEGO 410.

[0310] The brands are German BYK346, German BYK-024, German TEGO GLIDE100 and German TEGO 410 leveling agents, and the mass ratio is 6:3:1:2.

[0311] The silane compound is of the brand COATOSILMP200 produced by Momentive Silane of the United States.

[0312] The brand of the wetting agent used is German Digo wetting agent 4100.

[0313] The pre-dispersed slurry consists of bentonite and water.

[0314] The water is deionized water, and the mass ratio of the bentonite to the deionized water is 8:168.

[0315] The brand of the bentonite used is American Hemmings bentonite BENTONE EW.

[0316] The preparation method of the pre-dispersed slurry comprises: adding bentonite into deionized water and stirring at a stirring speed of 500 rpm, then increasing the stirring speed to 1500 rpm, and stopping stirring when a transparent state is reached and a fineness of 40 μm to obtain a dispersed slurry.

[0317] The silver powder premix slurry consists of a solvent and silver powder.

[0318] The solvents are deionized water and propylene glycol methyl ether.

[0319] The mass ratio of propylene glycol methyl ether, deionized water and silver powder in the silver powder premix is ​​6:3:7.

[0320] The preparation method of the silver powder premix slurry comprises: mixing propylene glycol methyl ether and deionized water at a stirring speed of 300 rpm, adding silver powder and stirring, increasing the stirring speed to 600 rpm, and stirring and dispersing for 40 minutes to obtain the silver powder premix slurry.

[0321] The silver powder is surface treated and is purchased from Anhui Xuyang New Materials Co., Ltd. The model is ZWD8240 and the particle size is 40 μm.

[0322] The rheology modifier is a rheology wax additive.

[0323] The manufacturer model of the rheological wax additive is BYKA QUATIX 8421 from Germany.

[0324] The premixed auxiliary agent consists of a premixed auxiliary agent a, a premixed auxiliary agent b, and a premixed auxiliary agent c, and the mass ratio of the premixed auxiliary agent a, the premixed auxiliary agent b, and the premixed auxiliary agent c is 70:7:19.

[0325] The premixed auxiliary agent a is composed of dipropylene glycol methyl ether and deionized water, and the mass ratio of the dipropylene glycol methyl ether to the deionized water is 1:1.

[0326] The preparation method of the premixed auxiliary agent a is to uniformly mix propylene glycol methyl ether and deionized water at a stirring speed of 300 rpm to obtain the premixed auxiliary agent a.

[0327] The premixed auxiliary agent b is composed of an anti-flash rust agent and deionized water, and the mass ratio of the deionized water to the anti-flash rust agent is 1:2.5.

[0328] The manufacturer's brand of the anti-flash rust agent used is American Raybo anti-flash rust agent RAYB060.

[0329] The preparation method of the premixed auxiliary agent b is to uniformly mix the flash rust inhibitor and deionized water at a stirring speed of 300 rpm to obtain the premixed auxiliary agent b.

[0330] The premixed auxiliary agent c is composed of a nonionic polyurethane associative rheology modifier and deionized water, and the mass ratio of the nonionic polyurethane associative rheology modifier to the deionized water is 1:2.8.

[0331] The non-ionic polyurethane associative rheology modifier adopts a manufacturer's brand including Borchers Borchi Gel 0620 from Germany.

[0332] The preparation method of the premixed auxiliary agent C is to uniformly mix a nonionic polyurethane associative rheology modifier and deionized water at a stirring speed of 300 rpm to obtain the premixed auxiliary agent C.

[0333] The second aspect of the present embodiment provides a method for preparing a water-based base-and-surface thick-coating anti-corrosion silver powder paint, comprising the following steps:

[0334] The epoxy emulsion, the blending aid, the pre-dispersed slurry, the silver powder premixed slurry, the rheology modifier and the premixed aid are stirred and mixed to obtain a water-based bottom and surface all-in-one thick coating anti-corrosion silver powder paint. The stirring speed is 500 rpm and the stirring time is 30 minutes.

[0335] The third aspect of the present embodiment provides an application of a water-based base and surface thick coating anti-corrosion silver powder paint, which is used in the field of anti-corrosion technology. The water-based base and surface thick coating anti-corrosion silver powder paint needs to be mixed with a curing agent when used.

[0336] The mass ratio of the water-based base and surface all-in-one thick-coating anti-corrosion silver powder paint to the curing agent is 1:0.2.

[0337] The curing agent is an epoxy curing agent, which is purchased from Jiangsu Fuqisen New Materials Co., Ltd. and has a model number of epoxy curing agent AQUAER-3126.

[0338] Example 9

[0339] The first aspect of the present embodiment provides a water-based base and surface thick-coat anti-corrosion silver powder paint. Calculated by mass percentage, its preparation raw materials include 52% epoxy emulsion, 2.8% blending aid, 17.6% pre-dispersed slurry, 16% silver powder premix slurry, 1.5% rheology modifier, and the premixed aid is supplemented to 100%.

[0340] The epoxy equivalent of the epoxy emulsion is 1010±50 g / Eq.

[0341] The epoxy emulsion was purchased from Jiangsu Fuqisen New Materials Co., Ltd., and the model number is AQUAER-3011.

[0342] The blending aid consists of a defoamer, a leveling agent, a silane compound, and a wetting agent, and the mass ratio of the defoamer, the leveling agent, the silane compound, and the wetting agent is 8:12:5:3.

[0343] The defoamer used is BASF defoamer 104E.

[0344] The brands of the leveling agent used are German BYK346, German BYK-024, German TEGOGLIDE100, and German TEGO 410.

[0345] The brands are German BYK346, German BYK-024, German TEGO GLIDE100 and German TEGO 410 leveling agents, and the mass ratio is 6:3:1:2.

[0346] The silane compound is of the brand COATOSILMP200 produced by Momentive Silane of the United States.

[0347] The brand of the wetting agent used is German Digo wetting agent 4100.

[0348] The pre-dispersed slurry consists of bentonite and water.

[0349] The water is deionized water, and the mass ratio of the bentonite to the deionized water is 8:168.

[0350] The brand of the bentonite used is American Hemmings bentonite BENTONE EW.

[0351] The preparation method of the pre-dispersed slurry comprises: adding bentonite into deionized water and stirring at a stirring speed of 500 rpm, then increasing the stirring speed to 1500 rpm, and stopping stirring when a transparent state is reached and a fineness of 40 μm to obtain a dispersed slurry.

[0352] The silver powder premix slurry consists of a solvent and silver powder.

[0353] The solvents are deionized water and propylene glycol methyl ether.

[0354] The mass ratio of propylene glycol methyl ether, deionized water and silver powder in the silver powder premix is ​​6:3:7.

[0355] The preparation method of the silver powder premix slurry comprises: mixing propylene glycol methyl ether and deionized water at a stirring speed of 300 rpm, adding silver powder and stirring, increasing the stirring speed to 600 rpm, and stirring and dispersing for 40 minutes to obtain the silver powder premix slurry.

[0356] The silver powder is surface treated and is purchased from Anhui Xuyang New Materials Co., Ltd. The model is ZWD8223 and the particle size is 23 μm.

[0357] The rheology modifier is a rheology wax additive.

[0358] The manufacturer model of the rheological wax additive is BYKA QUATIX 8421 from Germany.

[0359] The premixed auxiliary agent consists of a premixed auxiliary agent a, a premixed auxiliary agent b, and a premixed auxiliary agent c, and the mass ratio of the premixed auxiliary agent a, the premixed auxiliary agent b, and the premixed auxiliary agent c is 70:7:19.

[0360] The premixed auxiliary agent a is composed of dipropylene glycol methyl ether and deionized water, and the mass ratio of the dipropylene glycol methyl ether to the deionized water is 1:1.

[0361] The preparation method of the premixed auxiliary agent a is to uniformly mix propylene glycol methyl ether and deionized water at a stirring speed of 300 rpm to obtain the premixed auxiliary agent a.

[0362] The premixed auxiliary agent b is composed of an anti-flash rust agent and deionized water, and the mass ratio of the deionized water to the anti-flash rust agent is 1:2.5.

[0363] The manufacturer's brand of the anti-flash rust agent used is American Raybo anti-flash rust agent RAYB060.

[0364] The preparation method of the premixed auxiliary agent b is to uniformly mix the flash rust inhibitor and deionized water at a stirring speed of 300 rpm to obtain the premixed auxiliary agent b.

[0365] The premixed auxiliary agent c is composed of a nonionic polyurethane associative rheology modifier and deionized water, and the mass ratio of the nonionic polyurethane associative rheology modifier to the deionized water is 1:2.8.

[0366] The non-ionic polyurethane associative rheology modifier adopts a manufacturer's brand including Borchers Borchi Gel 0620 from Germany.

[0367] The preparation method of the premixed auxiliary agent C is to uniformly mix a nonionic polyurethane associative rheology modifier and deionized water at a stirring speed of 300 rpm to obtain the premixed auxiliary agent C.

[0368] The second aspect of the present embodiment provides a method for preparing a water-based base-and-surface thick-coating anti-corrosion silver powder paint, comprising the following steps:

[0369] The epoxy emulsion, the blending aid, the pre-dispersed slurry, the silver powder premixed slurry, the rheology modifier and the premixed aid are stirred and mixed to obtain a water-based bottom and surface all-in-one thick coating anti-corrosion silver powder paint. The stirring speed is 500 rpm and the stirring time is 30 minutes.

[0370] The third aspect of the present embodiment provides an application of a water-based base and surface thick coating anti-corrosion silver powder paint, which is used in the field of anti-corrosion technology. The water-based base and surface thick coating anti-corrosion silver powder paint needs to be mixed with a curing agent when used.

[0371] The mass ratio of the water-based base and surface all-in-one thick-coating anti-corrosion silver powder paint to the curing agent is 1:0.2.

[0372] The curing agent is an epoxy curing agent, which is purchased from Jiangsu Fuqisen New Materials Co., Ltd. and has a model number of epoxy curing agent AQUAER-3126.

[0373] Example 10

[0374] The first aspect of the present embodiment provides a water-based base and surface thick-coat anti-corrosion silver powder paint. Calculated by mass percentage, its preparation raw materials include 52% epoxy emulsion, 2.8% blending aid, 17.6% pre-dispersed slurry, 16% silver powder premix slurry, 1.5% rheology modifier, and the premixed aid is supplemented to 100%.

[0375] The epoxy equivalent of the epoxy emulsion is 1010±50 g / Eq.

[0376] The epoxy emulsion was purchased from Jiangsu Fuqisen New Materials Co., Ltd., and the model number is AQUAER-3011.

[0377] The blending aid consists of a defoamer, a leveling agent, a silane compound, and a wetting agent, and the mass ratio of the defoamer, the leveling agent, the silane compound, and the wetting agent is 8:12:5:3.

[0378] The defoamer used is BASF defoamer 104E.

[0379] The brands of the leveling agent used are German BYK346, German BYK-024, German TEGOGLIDE100, and German TEGO 410.

[0380] The brands are German BYK346, German BYK-024, German TEGO GLIDE100 and German TEGO 410 leveling agents, and the mass ratio is 6:3:1:2.

[0381] The silane compound is of the brand COATOSILMP200 produced by Momentive Silane of the United States.

[0382] The brand of the wetting agent used is German Digo wetting agent 4100.

[0383] The pre-dispersed slurry consists of bentonite and water.

[0384] The water is deionized water, and the mass ratio of the bentonite to the deionized water is 8:168.

[0385] The brand of the bentonite used is American Hemmings bentonite BENTONE EW.

[0386] The preparation method of the pre-dispersed slurry comprises: adding bentonite into deionized water and stirring at a stirring speed of 500 rpm, then increasing the stirring speed to 1500 rpm, and stopping stirring when a transparent state is reached and a fineness of 40 μm to obtain a dispersed slurry.

[0387] The silver powder premix slurry consists of a solvent and silver powder.

[0388] The solvents are deionized water and propylene glycol methyl ether.

[0389] The mass ratio of propylene glycol methyl ether, deionized water and silver powder in the silver powder premix is ​​6:3:7.

[0390] The preparation method of the silver powder premix slurry comprises: mixing propylene glycol methyl ether and deionized water at a stirring speed of 300 rpm, adding silver powder and stirring, increasing the stirring speed to 600 rpm, and stirring and dispersing for 40 minutes to obtain the silver powder premix slurry.

[0391] The silver powder is surface treated and is purchased from Anhui Xuyang New Materials Co., Ltd. The model is ZWHD8008A and the particle size is 18 μm.

[0392] The rheology modifier is a rheology wax additive.

[0393] The manufacturer model of the rheological wax additive is BYKA QUATIX 8421 from Germany.

[0394] The premixed auxiliary agent consists of a premixed auxiliary agent a, a premixed auxiliary agent b, and a premixed auxiliary agent c, and the mass ratio of the premixed auxiliary agent a, the premixed auxiliary agent b, and the premixed auxiliary agent c is 70:7:19.

[0395] The premixed auxiliary agent a is composed of dipropylene glycol methyl ether and deionized water, and the mass ratio of the dipropylene glycol methyl ether to the deionized water is 1:1.

[0396] The preparation method of the premixed auxiliary agent a is to uniformly mix propylene glycol methyl ether and deionized water at a stirring speed of 300 rpm to obtain the premixed auxiliary agent a.

[0397] The premixed auxiliary agent b is composed of an anti-flash rust agent and deionized water, and the mass ratio of the deionized water to the anti-flash rust agent is 1:2.5.

[0398] The manufacturer's brand of the anti-flash rust agent used is American Raybo anti-flash rust agent RAYB060.

[0399] The preparation method of the premixed auxiliary agent b is to uniformly mix the flash rust inhibitor and deionized water at a stirring speed of 300 rpm to obtain the premixed auxiliary agent b.

[0400] The premixed auxiliary agent c is composed of a nonionic polyurethane associative rheology modifier and deionized water, and the mass ratio of the nonionic polyurethane associative rheology modifier to the deionized water is 1:2.8.

[0401] The non-ionic polyurethane associative rheology modifier adopts a manufacturer's brand including Borchers Borchi Gel 0620 from Germany.

[0402] The preparation method of the premixed auxiliary agent C is to uniformly mix a nonionic polyurethane associative rheology modifier and deionized water at a stirring speed of 300 rpm to obtain the premixed auxiliary agent C.

[0403] The second aspect of the present embodiment provides a method for preparing a water-based base-and-surface thick-coating anti-corrosion silver powder paint, comprising the following steps:

[0404] The epoxy emulsion, the blending aid, the pre-dispersed slurry, the silver powder premixed slurry, the rheology modifier and the premixed aid are stirred and mixed to obtain a water-based bottom and surface all-in-one thick coating anti-corrosion silver powder paint. The stirring speed is 500 rpm and the stirring time is 30 minutes.

[0405] The third aspect of the present embodiment provides an application of a water-based base and surface thick coating anti-corrosion silver powder paint, which is used in the field of anti-corrosion technology. The water-based base and surface thick coating anti-corrosion silver powder paint needs to be mixed with a curing agent when used.

[0406] The mass ratio of the water-based base and surface all-in-one thick-coating anti-corrosion silver powder paint to the curing agent is 1:0.2.

[0407] The curing agent is an epoxy curing agent, which is purchased from Jiangsu Fuqisen New Materials Co., Ltd. and has a model number of epoxy curing agent AQUAER-3126.

[0408] Performance Testing

[0409] 1. Coating appearance test: The anticorrosive silver powder paint obtained in Examples 1-10 was dispersed uniformly according to GB-T 6753.3-1986 Coating Storage Stability Test Method, and its appearance was visually inspected and the results were recorded. Good, acceptable, poor, poor, and very poor were used for evaluation. The test results are shown in Tables 1 and 2, respectively.

[0410] 2. Dry film thickness test: The anticorrosive silver paint obtained in Example 1-10 was mixed with a curing agent and coated according to GB / T13452.2-2008. The dry film thickness was obtained after drying for 6 hours. The test results are shown in Tables 1 and 2 respectively. When the dry film thickness reaches 80-100 μm, it is a qualified product.

[0411] 3. Adhesion test: The anticorrosive silver powder paint obtained in Examples 1-10 was mixed with a curing agent and then coated on cast iron parts, cold-rolled sheet iron parts, and aluminum parts. After drying for 6 hours, the adhesion of the coating was measured according to "GB-T 1720-1979 Paint Film Adhesion Determination Method". The test results are shown in Tables 1 and 2 respectively. The product with adhesion reaching Grade 0 is qualified.

[0412] 4. Salt spray resistance test: After the anti-corrosion silver powder paint obtained in Example 1-10 was mixed with a curing agent, the coating was carried out on an aluminum plate and a cold-rolled plate respectively in accordance with "GB-T1771-2007 Determination of neutral salt spray resistance of paints and varnishes". After drying for 6 hours, the salt spray resistance of the aluminum plate and the cold-rolled plate was tested to obtain the salt spray resistance of the coating. The test results are shown in Tables 1 and 2, respectively. The aluminum plate is qualified if the salt spray resistance reaches 1500 hours; the cold-rolled plate is qualified if the salt spray resistance reaches 1000 hours.

[0413] 5. Construction viscosity anti-sagging test: After the anti-corrosion silver powder paint obtained in Examples 1-10 was mixed with the curing agent, its construction viscosity anti-sagging performance was measured in accordance with "GB / T 9264-2012 Evaluation of Anti-Sagging of Paints and Varnishes". The test results are shown in Tables 1 and 2 respectively. When the construction viscosity anti-sagging ≥275um is a qualified product.

[0414] Table 1

[0415]

[0416] Table 2

[0417]

[0418] It can be seen from the test results in Table 1 and Table 2 that the technical solution of the water-based bottom-surface thick-coating anti-corrosion silver powder paint provided in Example 5 can achieve an adhesion of level 0, the salt spray resistance of the aluminum plate reaches 1000 hours, the salt spray resistance of the cold-rolled plate reaches 1500 hours, and the dry film thickness obtained by a single thick coating can reach 100μm. The water-based bottom-surface thick-coating anti-corrosion silver powder paint provided in Example 5 is environmentally friendly and dries quickly, and can be better applied to the surfaces of materials such as aluminum, cast iron, and carbon steel for surface corrosion protection, thereby broadening the application of materials such as aluminum, cast iron, and carbon steel in corrosive environments. The water-based bottom-surface thick-coating anti-corrosion silver powder paint obtained in this application can decorate the surfaces of materials such as aluminum, cast iron, and carbon steel.

Claims

1. A water-based base and surface thick coating anti-corrosion silver powder paint, characterized in that: Calculated by mass percentage, the preparation raw materials include 50-60% epoxy emulsion, 2-3% blending auxiliary agent, 10-20% pre-dispersed slurry, 10-20% silver powder pre-mixed slurry, 1-2% rheology modifier, and the pre-mixed auxiliary agent is supplemented to 100%.

2. The water-based bottom-to-top thick-coating anti-corrosion silver powder paint according to claim 1, characterized in that: The epoxy equivalent of the epoxy emulsion is 1010±50 g / Eq.

3. The water-based bottom-to-top thick-coating anti-corrosion silver powder paint according to claim 1, characterized in that: The blending aids include defoamers, leveling agents, silane compounds and wetting agents.

4. The water-based bottom-to-top thick-coating anti-corrosion silver powder paint according to claim 1, characterized in that: The pre-dispersed slurry includes bentonite and water.

5. The water-based bottom-and-top thick-coating anti-corrosion silver powder paint according to claim 1, characterized in that: The silver powder premix slurry comprises a solvent and silver powder.

6. The water-based bottom-and-top thick-coating anti-corrosion silver powder paint as claimed in claim 5, characterized in that: The particle size of the silver powder is 35-45 μm, and the silver powder is surface treated.

7. The water-based bottom-to-top thick-coating anti-corrosion silver powder paint according to claim 1, characterized in that: The rheology modifier includes a rheology wax additive.

8. The water-based bottom-to-top thick-coating anti-corrosion silver powder paint according to claim 1, characterized in that: The premixed auxiliary agent includes a premixed auxiliary agent a, a premixed auxiliary agent b, and a premixed auxiliary agent c. The premixed auxiliary agent b includes an anti-flash rust agent, and the premixed auxiliary agent c includes a non-ionic polyurethane associative rheology modifier.

9. A method for preparing a water-based base-and-surface thick-coating anti-corrosion silver powder paint as claimed in any one of claims 1 to 8, characterized in that: The following steps are involved: The epoxy emulsion, the blending aid, the pre-dispersed slurry, the silver powder pre-mixed slurry, the rheology modifier and the pre-mixed aid are mixed to obtain a water-based base and surface all-in-one thick coating anti-corrosion silver powder paint.

10. An application of the water-based bottom-to-top thick-coating anti-corrosion silver powder paint as claimed in any one of claims 1 to 8, characterized in that: The water-based base-surface thick-coating anti-corrosion silver powder paint is used in the field of anti-corrosion technology. The water-based base-surface thick-coating anti-corrosion silver powder paint needs to be mixed with a curing agent when used.

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