Scratch-resistant alkali-resistant baking varnish material and preparation method thereof

Abstract

The invention relates to the technical field of stoving varnish materials, and particularly discloses a scratch-resistant alkali-resistant stoving varnish material and a preparation method thereof, the scratch-resistant alkali-resistant stoving varnish material comprises the following raw materials by weight: 35-40 parts of aqueous acrylic resin, 15-20 parts of amino resin, 7-11 parts of a filler aid, 5-8 parts of a scratch-resistant alkali-based functional agent, 3-5 parts of a silane coupling agent KH560, 2-5 parts of a film-forming cosolvent, 2-5 parts of an adhesion promoter, 1-3 parts of a leveling agent, and 20-25 parts of deionized water. According to the scratch-resistant alkali-resistant baking varnish material, the waterborne acrylic resin, the amino resin, the silane coupling agent KH560, the film-forming cosolvent, the adhesion promoter and the flatting agent are used as functional additives, and meanwhile, the functional agent based on the scratch-resistant alkali and the filler additive are added to be blended and matched to achieve common synergism, so that the hardness and the adhesion of the obtained product are harmoniously improved, and the scratch-resistant alkali-resistant baking varnish material has the advantages of simple preparation process and low cost. The alkali-resistant and scratch-resistant stability effects are obvious.

Description

Technical Field

[0001] The present invention relates to the technical field of baking paint materials, and particularly relates to a scratch-resistant and alkali-resistant baking paint material and a preparation method thereof. Background Art

[0002] The use environment of sanitary ware will come into contact with alkaline solutions such as soap, requiring the paint to have alkali resistance. In addition, there are higher requirements for its pencil hardness compared to other paint materials. The theoretical pencil hardness of ordinary PU baking paint can only reach 6H. To improve the hardness, the general method is to introduce silicone branches into the polyurethane molecular chain, which can increase the pencil hardness to 8H. However, the silicone branches have the defect of poor alkali resistance. For existing baking paint materials, it is difficult to coordinate the hardness and adhesion, and the alkali resistance and scratch resistance stability are poor. Improving the performance coordination and performance stability of the products is a technical problem of the present invention. Based on this, the present invention makes further improvement treatments. Summary of the Invention

[0003] Aiming at the defects of the prior art, the purpose of the present invention is to provide a scratch-resistant and alkali-resistant baking paint material and a preparation method thereof to solve the problems raised in the above background art.

[0004] The present invention adopts the following technical solutions to solve the technical problems: The present invention provides a scratch-resistant and alkali-resistant baking paint material, which comprises the following raw materials in parts by weight: 35 - 40 parts of waterborne acrylic resin, 15 - 20 parts of amino resin, 7 - 11 parts of filler additive, 5 - 8 parts of scratch- and alkali-resistant functional agent, 3 - 5 parts of silane coupling agent KH560, 2 - 5 parts of film-forming co-solvent, 2 - 5 parts of adhesion promoter, 1 - 3 parts of leveling agent, and 20 - 25 parts of deionized water.

[0005] Preferably, the scratch-resistant and alkali-resistant baking paint material comprises the following raw materials in parts by weight: 37.5 parts of waterborne acrylic resin, 17.5 parts of amino resin, 9 parts of filler additive, 6.5 parts of scratch- and alkali-resistant functional agent, 4 parts of silane coupling agent KH560, 3.5 parts of film-forming co-solvent, 3.5 parts of adhesion promoter, 2 parts of leveling agent, and 22.5 parts of deionized water.

[0006] Preferably, the amino resin is prepared from amino resin CYMEL327 and amino resin MR-603 in a weight ratio of 3:2; The waterborne acrylic resin is waterborne acrylic resin PJ6257-70; The film-forming co-solvent is one of diethylene glycol monobutyl ether and propylene glycol; The adhesion promoter is adhesion promoter 2504; The leveling agent is leveling agent PW-336.

[0007] Preferably, the preparation method of the filler auxiliary agent is: S01: Preparation of compounding agent: 2-3 parts of illite, 3-5 parts of barium titanate and 1-2 parts of lignocellulose are mixed and added into 5-8 parts of sodium dodecylbenzene sulfonate solution by weight, and stirred evenly to obtain a blended solution; The flaky talc, pyrophyllite and sodium silicate solution are uniformly mixed in a weight ratio of (2-4):3:(5-8) to obtain a recuperation agent; The refining agent and the blending liquid are ultrasonically treated in a weight ratio of 3:5. After the ultrasonic treatment is completed, the refining agent is filtered and dried to obtain the refining agent; S02: stirring and modifying the calcium sulfate whiskers in a modification liquid of 3 to 5 times the total weight of the calcium sulfate whiskers, and obtaining a modified whisker liquid after the stirring is completed; S03: The modified whisker liquid and the compounding agent are mixed in a weight ratio of 7:5, and the mixture is ball-milled at a speed of 1000-1500 r / min for 2 h. After the ball-milling is completed, the mixture is filtered and dried to obtain a filler additive.

[0008] Preferably, the mass fraction of the sodium dodecylbenzene sulfonate solution is 5-8%; the mass fraction of the sodium silicate solution is 2-5%.

[0009] Preferably, the ultrasonic power of the ultrasonic treatment is 350-400W, and the ultrasonic treatment is performed for 1 hour; the stirring speed of the stirring modification treatment is 350-400r / min, and the stirring is performed for 2 hours.

[0010] Preferably, the preparation method of the modified liquid is: Add 3-5 parts of boron nitride and 1-2 parts of zirconium silicate by weight to 5-8 parts of 5% by weight yttrium nitrate solution, then add 2-3 parts of montmorillonite and 1-2 parts of 4% by weight sodium alginate solution, stir well, and obtain a modified solution.

[0011] Preferably, the preparation method of the scratch-resistant alkali-based functional agent is: S11: adding 3-6 parts of basalt fiber, 2-3 parts of zirconium phosphate and 1-2 parts of nano-silica sol to 5-8 parts of 5% sodium lignin sulfonate solution by weight, stirring evenly to obtain a fiber solution; S12: Blend magnesium oxide, lanthanum oxide and aluminum oxide and sinter for 1 hour to obtain a composite; stir the composite and fiber liquid evenly in a weight ratio of 3:5, and finally filter and dry to obtain a scratch-resistant alkali-based functional agent.

[0012] Preferably, the temperature of the blended sintering is 280-320° C.; the mass ratio of magnesium oxide, lanthanum oxide and aluminum oxide is (2-3):1:(3-4).

[0013] The present invention also provides a preparation method of a scratch-resistant and alkali-resistant baking paint material, comprising the following steps: Weigh the raw materials of the scratch-resistant and alkali-resistant baking paint material according to parts by weight, mix the raw materials evenly to obtain the scratch-resistant and alkali-resistant baking paint material; then coat the scratch-resistant and alkali-resistant baking paint material on the surface of the sanitary ware, with a coating thickness of 2-3 mm, and bake at 120-125 °C for 5 minutes.

[0014] Compared with the prior art, the present invention has the following beneficial effects: The scratch-resistant and alkali-resistant baking paint material of the present invention uses waterborne acrylic resin, amino resin, silicon coupling agent KH560, film-forming co-solvent, adhesion promoter and leveling agent as functional additives. At the same time, a functional agent based on scratch and alkali resistance and a filler additive are added and coordinated to work together and enhance the efficiency. The hardness and adhesion of the obtained product are coordinately improved, and the alkali resistance and scratch resistance stability effects are remarkable; The filler additive is modified by stirring with a modification liquid using calcium sulfate whiskers. The whisker structure of calcium sulfate whiskers is optimized with the modification liquid. Boron nitride and zirconium silicate in the modification liquid are coordinated. Then, through the coordination between yttrium nitrate solution, montmorillonite and 4% sodium alginate solution by mass fraction, through the co-ordination improvement of raw materials, boron nitride in sheet form coordinates zirconium silicate and layered montmorillonite, and is reinforced into the system to further enhance the performance effect of the filler additive in the system, optimize the performance coordination and performance stability of the product; The further modifier is improved by the cooperation of the modifier and the blending liquid. The flaky talc powder, pyrophyllite and sodium silicate solution in the modifier are coordinated and optimized, and then combined with illite, barium titanate, wood cellulose and sodium dodecylbenzenesulfonate solution. Through the co-ordination improvement of raw materials, it is further interpenetrated and reinforced into the system, thereby further improving the performance coordination and performance stability of the product; The functional agent based on scratch and alkali resistance is sintered and improved with magnesium oxide, lanthanum oxide and aluminum oxide, and then optimized by blending with fiber liquid. The basalt fiber in the fiber liquid is used as the matrix, and then through the coordination between zirconium phosphate, nano-silica sol and 5% sodium lignosulfonate solution by mass fraction, through the needle-like structure of basalt fiber coordinating with raw materials such as zirconium phosphate, the composite is further reinforced and blended, so that the functional agent based on scratch and alkali resistance and the filler additive have better coordination effect, and the performance of the product is further improved. Specific embodiments

[0015] The following combines specific embodiments to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.

[0016] A scratch-resistant and alkali-resistant baking paint material according to this embodiment comprises raw materials in the following parts by weight: 35 - 40 parts of waterborne acrylic resin, 15 - 20 parts of amino resin, 7 - 11 parts of filler additive, 5 - 8 parts of functional agent based on scratch and alkali resistance, 3 - 5 parts of silane coupling agent KH560, 2 - 5 parts of film-forming co-solvent, 2 - 5 parts of adhesion promoter, 1 - 3 parts of leveling agent, 20 - 25 parts of deionized water.

[0017] The amino resin in this embodiment is prepared by mixing amino resin CYMEL327 and amino resin MR - 603 in a weight ratio of 3:2; The waterborne acrylic resin is waterborne acrylic resin PJ6257 - 70; The film-forming co-solvent is one of diethylene glycol butyl ether and propylene glycol; The adhesion promoter is adhesion promoter 2504; The leveling agent is leveling agent PW - 336.

[0018] The preparation method of the filler additive in this embodiment is as follows: S01: Prepare a compounded conditioner: Mix 2 - 3 parts of illite, 3 - 5 parts of barium titanate and 1 - 2 parts of wood cellulose by weight and add them to 5 - 8 parts of sodium dodecylbenzenesulfonate solution, stir evenly to obtain a conditioning solution; Mix flaky talc, pyrophyllite and sodium silicate solution evenly according to a weight ratio of (2 - 4):3:(5 - 8) to obtain a compounding agent; Perform ultrasonic treatment on the compounding agent and the conditioning solution according to a weight ratio of 3:5. After the ultrasonic treatment ends, carry out suction filtration and drying to obtain a compounded conditioner; S02: Stir and modify calcium sulfate whiskers in a modification liquid that is 3 - 5 times the total weight of the calcium sulfate whiskers. After the stirring ends, obtain a modified whisker liquid; Mix the modified whisker liquid and the compounded conditioner according to a weight ratio of 7:5, carry out ball milling treatment at a ball milling speed of 1000 - 1500 r / min for 2 h. After the ball milling ends, carry out suction filtration and drying to obtain the filler additive.

[0019] The mass fraction of the sodium dodecylbenzenesulfonate solution in this embodiment is 5 - 8%; the mass fraction of the sodium silicate solution is 2 - 5%.

[0020] The ultrasonic power of the ultrasonic treatment in this embodiment is 350 - 400 W, and the ultrasonic treatment is carried out for 1 h; the stirring speed of the stirring and modification treatment is 350 - 400 r / min, and the stirring is carried out for 2 h.

[0021] The preparation method of the modification liquid in this embodiment is as follows: Add 3 - 5 parts of boron nitride and 1 - 2 parts of zirconium silicate by weight to 5 - 8 parts of a 5% yttrium nitrate solution by mass fraction, then add 2 - 3 parts of montmorillonite and 1 - 2 parts of a 4% sodium alginate solution by mass fraction, and stir well to obtain a modified liquid.

[0022] The preparation method of the scratch - and - alkali - resistant functional agent in this example is as follows: S11: Add 3 - 6 parts of basalt fiber, 2 - 3 parts of zirconium phosphate, and 1 - 2 parts of nano - silica sol by weight to 5 - 8 parts of a 5% sodium lignosulfonate solution by mass fraction, and stir evenly to obtain a fiber liquid; S12: Co - mix and sinter magnesium oxide, lanthanum oxide, and aluminum oxide for 1 h. After sintering, obtain a composite; stir the composite and the fiber liquid evenly according to a weight ratio of 3:5, and finally filter and dry to obtain a scratch - and - alkali - resistant functional agent.

[0023] The co - mixing and sintering temperature in this example is 280 - 320 °C; the mass ratio of magnesium oxide, lanthanum oxide, and aluminum oxide is (2 - 3):1:(3 - 4).

[0024] The preparation method of a scratch - and - alkali - resistant baking paint material in this example includes the following steps: Weigh the raw materials of the scratch - and - alkali - resistant baking paint material by weight, mix the raw materials evenly to obtain the scratch - and - alkali - resistant baking paint material; then coat the scratch - and - alkali - resistant baking paint material on the surface of the sanitary ware, with a coating thickness of 2 - 3 mm, and then bake at 120 - 125 °C for 5 min.

[0025] Example 1 A scratch - and - alkali - resistant baking paint material in this example includes the following raw materials by weight: 35 parts of water - borne acrylic resin, 15 parts of amino resin, 7 parts of filler additive, 5 parts of scratch - and - alkali - resistant functional agent, 3 parts of silane coupling agent KH560, 2 parts of film - forming co - solvent, 2 parts of adhesion promoter, 1 part of leveling agent, 20 parts of deionized water.

[0026] The amino resin in this example is prepared from amino resin CYMEL327 and amino resin MR - 603 according to a weight ratio of 3:2; The water - borne acrylic resin is water - borne acrylic resin PJ6257 - 70; The film - forming co - solvent is diethylene glycol butyl ether; The adhesion promoter is adhesion promoter 2504; The leveling agent is leveling agent PW - 336.

[0027] The preparation method of the filler additive in this example is as follows: S01: Prepare a compounding agent for recoil: 2 parts of illite, 3 parts of barium titanate and 1 part of lignocellulose are mixed by weight and added into 5 parts of sodium dodecylbenzene sulfonate solution, and stirred evenly to obtain a blended solution; The flaky talc, pyrophyllite and sodium silicate solution are uniformly mixed in a weight ratio of 2:3:5 to obtain a remedial agent; The refining agent and the blending liquid are ultrasonically treated in a weight ratio of 3:5. After the ultrasonic treatment is completed, the refining agent is filtered and dried to obtain the refining agent; S02: stirring and modifying the calcium sulfate whiskers in a modification liquid of 3 times the total weight of the calcium sulfate whiskers, and obtaining a modified whisker liquid after the stirring is completed; S03: The modified whisker liquid and the compounding agent are mixed in a weight ratio of 7:5, and the mixture is ball-milled at a speed of 1000 r / min for 2 h. After the ball-milling is completed, the mixture is filtered and dried to obtain a filler additive.

[0028] The mass fraction of the sodium dodecylbenzene sulfonate solution in this embodiment is 5%; the mass fraction of the sodium silicate solution is 2%.

[0029] The ultrasonic power of the ultrasonic treatment in this embodiment is 350W, and the ultrasonic treatment is carried out for 1 hour; the stirring speed of the stirring modification treatment is 350r / min, and the stirring is carried out for 2 hours.

[0030] The preparation method of the modified liquid of this embodiment is: 3 parts of boron nitride and 1 part of zirconium silicate were added by weight to 5 parts of 5% by mass yttrium nitrate solution, and then 2 parts of montmorillonite and 1 part of 4% by mass sodium alginate solution were added, and stirred thoroughly to obtain a modified solution.

[0031] The preparation method of the functional agent based on scratch-resistant alkali of this embodiment is: S11: adding 3 parts of basalt fiber, 2 parts of zirconium phosphate and 1 part of nano-silica sol to 5 parts of 5% sodium lignin sulfonate solution by weight, stirring evenly to obtain a fiber solution; S12: Blend magnesium oxide, lanthanum oxide and aluminum oxide and sinter for 1 hour to obtain a composite; stir the composite and fiber liquid evenly in a weight ratio of 3:5, and finally filter and dry to obtain a scratch-resistant alkali-based functional agent.

[0032] The temperature of the co-mixed sintering in this embodiment is 280° C.; the mass ratio of magnesium oxide, lanthanum oxide and aluminum oxide is 2:1:3.

[0033] A method for preparing a scratch-resistant and alkali-resistant baking varnish material according to the present embodiment comprises the following steps: The raw materials of the scratch-resistant and alkali-resistant baking varnish material are weighed according to parts by weight, and the raw materials are mixed evenly to obtain the scratch-resistant and alkali-resistant baking varnish material; then the scratch-resistant and alkali-resistant baking varnish material is applied to the surface of the sanitary ware with a coating thickness of 2 mm, and then baked at 120° C. for 5 minutes.

[0034] Example 2 A scratch-resistant and alkali-resistant baking paint material in this example comprises raw materials in the following parts by weight: 40 parts of waterborne acrylic resin, 20 parts of amino resin, 11 parts of filler assistant, 8 parts of functional agent based on scratch and alkali resistance, 5 parts of silane coupling agent KH560, 5 parts of film-forming co-solvent, 5 parts of adhesion promoter, 3 parts of leveling agent, and 25 parts of deionized water.

[0035] The amino resin in this example is prepared from amino resin CYMEL327 and amino resin MR-603 according to a weight ratio of 3:2; The waterborne acrylic resin is waterborne acrylic resin PJ6257-70; The film-forming co-solvent is diethylene glycol butyl ether; The adhesion promoter is adhesion promoter 2504; The leveling agent is leveling agent PW-336.

[0036] The preparation method of the filler assistant in this example is as follows: S01: Prepare a compounded conditioner: Mix 3 parts of illite, 5 parts of barium titanate, and 2 parts of wood cellulose by weight and add them to 8 parts of sodium dodecylbenzenesulfonate solution, stir evenly to obtain a conditioning solution; Mix flaky talc, pyrophyllite, and sodium silicate solution evenly according to a weight ratio of 4:3:8 to obtain a compounding agent; Perform ultrasonic treatment on the compounding agent and the conditioning solution according to a weight ratio of 3:5. After the ultrasonic treatment ends, perform suction filtration and drying to obtain a compounded conditioner; S02: Stir and modify calcium sulfate whiskers in a modification solution 5 times the total weight of the calcium sulfate whiskers. After stirring ends, obtain a modified whisker solution; S03: Mix the modified whisker solution and the compounded conditioner according to a weight ratio of 7:5, perform ball milling treatment at a ball milling speed of 1500 r / min for 2 h. After the ball milling ends, perform suction filtration and drying to obtain the filler assistant.

[0037] The mass fraction of the sodium dodecylbenzenesulfonate solution in this example is 8%; the mass fraction of the sodium silicate solution is 5%.

[0038] The ultrasonic power of the ultrasonic treatment in this example is 400 W, and the ultrasonic treatment is performed for 1 h; the stirring speed of the stirring modification treatment is 400 r / min, and the stirring is performed for 2 h.

[0039] The preparation method of the modification solution in this example is as follows: Add 5 parts of boron nitride and 2 parts of zirconium silicate by weight to 8 parts of a 5% yttrium nitrate solution by mass fraction, and then add 3 parts of montmorillonite and 2 parts of a 4% sodium alginate solution by mass fraction, and stir well to obtain a modified liquid.

[0040] The preparation method of the alkali-resistant and scratch-resistant functional agent in this example is as follows: S11: Add 6 parts of basalt fiber, 3 parts of zirconium phosphate and 2 parts of nano-silica sol by weight to 8 parts of a 5% sodium lignosulfonate solution by mass fraction, and stir evenly to obtain a fiber liquid; S12: Co-mix and sinter magnesium oxide, lanthanum oxide and aluminum oxide for 1 h. After sintering, a composite body is obtained; the composite body and the fiber liquid are stirred evenly according to a weight ratio of 3:5, and finally filtered and dried to obtain an alkali-resistant and scratch-resistant functional agent.

[0041] The co-mixing and sintering temperature in this example is 320 °C; the mass ratio of magnesium oxide, lanthanum oxide and aluminum oxide is 3:1:4.

[0042] The preparation method of an alkali-resistant and scratch-resistant baking paint material in this example includes the following steps: Weigh the raw materials of the alkali-resistant and scratch-resistant baking paint material by weight, mix the raw materials evenly to obtain the alkali-resistant and scratch-resistant baking paint material; then coat the alkali-resistant and scratch-resistant baking paint material on the surface of the sanitary ware, with a coating thickness of 3 mm, and then bake at 125 °C for 5 min.

[0043] Example 3 An alkali-resistant and scratch-resistant baking paint material in this example includes the following raw materials by weight: 37.5 parts of waterborne acrylic resin, 17.5 parts of amino resin, 9 parts of filler additive, 6.5 parts of alkali-resistant and scratch-resistant functional agent, 4 parts of silane coupling agent KH560, 3.5 parts of film-forming co-solvent, 3.5 parts of adhesion promoter, 2 parts of leveling agent, 22.5 parts of deionized water.

[0044] The amino resin in this example is prepared from amino resin CYMEL327 and amino resin MR-603 according to a weight ratio of 3:2; The waterborne acrylic resin is waterborne acrylic resin PJ6257-70; The film-forming co-solvent is diethylene glycol butyl ether; The adhesion promoter is adhesion promoter 2504; The leveling agent is leveling agent PW-336.

[0045] The preparation method of the filler additive in this example is as follows: S01: Prepare a compounding agent for recoil: 2.5 parts of illite, 4 parts of barium titanate and 1.5 parts of lignocellulose were mixed by weight and added into 6.5 parts of sodium dodecylbenzene sulfonate solution, and stirred evenly to obtain a blended solution; The flaky talc, pyrophyllite and sodium silicate solution are uniformly mixed in a weight ratio of 3:3:6.5 to obtain a remedial agent; The refining agent and the blending liquid are ultrasonically treated in a weight ratio of 3:5. After the ultrasonic treatment is completed, the refining agent is filtered and dried to obtain the refining agent; S02: stirring and modifying the calcium sulfate whiskers in a modification liquid of 4 times the total weight of the calcium sulfate whiskers, and obtaining a modified whisker liquid after the stirring is completed; S03: The modified whisker liquid and the compounding agent are mixed in a weight ratio of 7:5 and subjected to ball milling at a ball milling speed of 1250 r / min for 2 h. After the ball milling is completed, the mixture is filtered and dried to obtain a filler additive.

[0046] The mass fraction of the sodium dodecylbenzene sulfonate solution in this embodiment is 6.5%; the mass fraction of the sodium silicate solution is 3.5%.

[0047] The ultrasonic power of the ultrasonic treatment in this embodiment is 375W, and the ultrasonic treatment is performed for 1 hour; the stirring speed of the stirring modification treatment is 375r / min, and the stirring is performed for 2 hours.

[0048] The preparation method of the modified liquid of this embodiment is: 4 parts of boron nitride and 1.5 parts of zirconium silicate were added by weight to 6.5 parts of 5% by weight yttrium nitrate solution, and then 2.5 parts of montmorillonite and 1.5 parts of 4% by weight sodium alginate solution were added, and stirred thoroughly to obtain a modified solution.

[0049] The preparation method of the functional agent based on scratch-resistant alkali of this embodiment is: S11: adding 5 parts of basalt fiber, 2.5 parts of zirconium phosphate and 1.5 parts of nano-silica sol to 6.5 parts of 5% sodium lignin sulfonate solution by weight, stirring evenly to obtain a fiber solution; S12: Blend magnesium oxide, lanthanum oxide and aluminum oxide and sinter for 1 hour to obtain a composite; stir the composite and fiber liquid evenly in a weight ratio of 3:5, and finally filter and dry to obtain a scratch-resistant alkali-based functional agent.

[0050] The temperature of the co-mixed sintering in this embodiment is 300° C.; the mass ratio of magnesium oxide, lanthanum oxide and aluminum oxide is 2.5:1:3.5.

[0051] A method for preparing a scratch-resistant and alkali-resistant baking varnish material according to the present embodiment comprises the following steps: Weigh the raw materials of the scratch- and alkali-resistant baking paint material by weight parts, mix the raw materials evenly to obtain the scratch- and alkali-resistant baking paint material; then coat the scratch- and alkali-resistant baking paint material on the surface of the sanitary ware, with a coating thickness of 2.5 mm, and then bake at 122.5 °C for 5 minutes. That's it.

[0052] Comparative Example 1: It is different from Example 3 in that the filler assistant is not added.

[0053] Comparative Example 2: It is different from Example 3 in that the modified whisker liquid is not added during the preparation of the filler assistant.

[0054] Comparative Example 3: It is different from Example 3 in that the modifying liquid is not added to the modified whisker liquid.

[0055] Comparative Example 4: It is different from Example 3 in that boron nitride and zirconium silicate are not added to the modifying liquid.

[0056] Comparative Example 5: It is different from Example 3 in that montmorillonite and sodium alginate solution are not added to the modifying liquid. Comparative Example 6: It is different from Example 3 in that the compounding agent for further improvement is not added during the preparation of the filler assistant.

[0057] Comparative Example 7: It is different from Example 3 in that the further improver is not added to the compounding agent for further improvement.

[0058] Comparative Example 8: It is different from Example 3 in that the compounding liquid is not added to the compounding agent for further improvement.

[0059] Comparative Example 9: It is different from Example 3 in that illite and barium titanate are not added to the compounding liquid.

[0060] Comparative Example 10: It is different from Example 3 in that the scratch- and alkali-resistant functional agent is not added.

[0061] Comparative Example 11: It is different from Example 3 in that the complex is not added during the preparation of the scratch- and alkali-resistant functional agent.

[0062] Comparative Example 12: It is different from Example 3 in that the fiber liquid is not added during the preparation of the scratch- and alkali-resistant functional agent.

[0063] Comparative Example 13: It is different from Example 3 in that basalt fiber and zirconium phosphate are not added to the fiber liquid.

[0064] The products of Examples 1 - 3 and Comparative Examples 1 - 13 were subjected to hardness and adhesion tests under normal conditions, alkali resistance, and scratch resistance conditions. For the alkali resistance and scratch resistance conditions, the products were placed in a 5% sodium chloride salt spray condition for 12 h, and then scratched with a load force of 10 N for 12 h. The above was one cycle, and the cycle was repeated 10 times. The test results are shown in Table 1: Table 1 Test results of the product performance of Examples 1 - 3 and Comparative Examples 1 - 13:

[0065] It can be seen from Comparative Examples 1 - 13 and Examples 1 - 3 that the products of Example 3 have excellent adhesion strength and hardness, and the two properties can be improved in a coordinated manner. At the same time, under the conditions of alkali resistance and scratch resistance, the product has excellent performance stability; It can be seen from Comparative Examples 1 - 13 and Example 3 that when one of the filler additives and the scratch - resistant alkali - based functional agents is not added in the present invention, the product performance deteriorates significantly. By using the two in a coordinated manner, the product performance effect is significant; It can be seen from Comparative Examples 1 - 9, Comparative Example 10, and Example 3 that in the preparation of the filler additive, the modified whisker liquid is not added, the modified liquid is not added to the modified whisker liquid, boron nitride and zirconium silicate are not added to the modified liquid, montmorillonite and sodium alginate solution are not added to the modified liquid, the compounding agent is not added to the preparation of the filler additive, the compounding agent is not added to the compounding agent, the compounding liquid is not added to the compounding agent, and illite and barium titanate are not added to the compounding liquid. The product performance shows a deteriorating trend to varying degrees; Only the compounding agent obtained by the specific method of the present invention has a significant product performance effect, and the filler additive prepared by mutually blending the modified whisker liquid improved by the specific modified liquid of the present invention and the filler additive has the most significant product performance effect. Using other methods instead is not as effective as the present invention; It can be seen from Comparative Examples 11 - 13, Comparative Example 10, and Example 3 that in the preparation of the scratch - resistant alkali - based functional agent, the complex is not added, the fiber liquid is not added to the scratch - resistant alkali - based functional agent, basalt fiber and zirconium phosphate are not added to the fiber liquid. The product performance shows a deteriorating trend to varying degrees. Only the scratch - resistant alkali - based functional agent obtained by the specific method of the present invention has the most significant product performance effect.

[0066] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above-described exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention. Therefore, in any regard, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be embraced within the present invention.

[0067] In addition, it should be understood that although this specification is described in terms of embodiments, not every embodiment only contains an independent technical solution. This narrative manner of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A scratch-resistant and alkali-resistant baking paint material, characterized in that, It includes the following raw materials in parts by weight: 35 - 40 parts of waterborne acrylic resin, 15 - 20 parts of amino resin, 7 - 11 parts of filler assistant, 5 - 8 parts of scratch - and - alkali - resistant functional agent, 3 - 5 parts of silane coupling agent KH560, 2 - 5 parts of film - forming co - solvent, 2 - 5 parts of adhesion promoter, 1 - 3 parts of leveling agent, 20 - 25 parts of deionized water; The preparation method of the scratch - and - alkali - resistant functional agent is as follows: S11: Add 3 - 6 parts of basalt fiber, 2 - 3 parts of zirconium phosphate and 1 - 2 parts of nano - silica sol by weight to 5 - 8 parts of 5% sodium lignosulfonate solution by mass fraction, stir evenly to obtain fiber liquid; S12: Co - mix and sinter magnesium oxide, lanthanum oxide and alumina for 1 h, and after sintering, obtain a composite; Stir the composite and the fiber liquid evenly according to a weight ratio of 3:5, and finally filter and dry to obtain the scratch - and - alkali - resistant functional agent.

2. The scratch-resistant and alkali-resistant baking paint material according to claim 1, characterized in that, The scratch - and alkali - resistant baking paint material includes the following raw materials in parts by weight: 37.5 parts of waterborne acrylic resin, 17.5 parts of amino resin, 9 parts of filler assistant, 6.5 parts of scratch - and - alkali - resistant functional agent, 4 parts of silane coupling agent KH560, 3.5 parts of film - forming co - solvent, 3.5 parts of adhesion promoter, 2 parts of leveling agent, 22.5 parts of deionized water.

3. The scratch-resistant and alkali-resistant baking paint material according to claim 1, characterized in that, The amino resin is prepared by mixing amino resin CYMEL327 and amino resin MR - 603 according to a weight ratio of 3:

2.

4. A scratch-resistant and alkali-resistant baking paint material according to claim 1, characterized in that The waterborne acrylic resin is waterborne acrylic resin PJ6257 - 70; The film - forming co - solvent is one of diethylene glycol butyl ether and propylene glycol; The adhesion promoter is adhesion promoter 2504; The leveling agent is leveling agent PW - 336.

5. The scratch-resistant and alkali-resistant baking paint material according to claim 1, characterized in that, The preparation method of the filler assistant is as follows: S01: Prepare a compounding conditioner: Add 2 - 3 parts of illite, 3 - 5 parts of barium titanate and 1 - 2 parts of wood cellulose by weight to 5 - 8 parts of sodium dodecylbenzenesulfonate solution, stir evenly to obtain a conditioning liquid; Mix flaky talc powder, pyrophyllite and sodium silicate solution evenly according to a weight ratio of (2 - 4):3:(5 - 8) to obtain a compounding agent; Subject the compounding agent and the conditioning liquid to ultrasonic treatment according to a weight ratio of 3:

5. After ultrasonic treatment, filter and dry to obtain the compounding conditioner; S02: Stir and modify calcium sulfate whiskers in a modifying liquid that is 3 - 5 times the total weight of calcium sulfate whiskers. After stirring, obtain a modified whisker liquid; S03: Mix and ball - mill the modified whisker liquid and the compounding conditioner according to a weight ratio of 7:

5. The ball - milling speed is 1000 - 1500 r / min, ball - mill for 2 h. After ball - milling, filter and dry to obtain the filler assistant.

6. The scratch-resistant and alkali-resistant baking paint material according to claim 5, wherein, The mass fraction of the sodium dodecylbenzenesulfonate solution is 5 - 8%; the mass fraction of the sodium silicate solution is 2 - 5%.

7. The scratch-resistant and alkali-resistant baking paint material according to claim 5, characterized in that, The ultrasonic power of the ultrasonic treatment is 350 - 400 W, and ultrasonic treatment is carried out for 1 h; the stirring speed of the stirring and modification treatment is 350 - 400 r / min, and stirring is carried out for 2 h.

8. The scratch-resistant and alkali-resistant baking paint material according to claim 5, wherein, The preparation method of the modifying liquid is: Add 3 to 5 parts by weight of boron nitride and 1 to 2 parts of zirconium silicate to 5 to 8 parts of a 5% yttrium nitrate solution by mass, then add 2 to 3 parts of montmorillonite and 1 to 2 parts of a 4% sodium alginate solution by mass, and stir well to obtain a modified liquid.

9. The scratch-resistant and alkali-resistant baking paint material according to claim 1, characterized in that, The temperature of the co-blending sintering is 280 to 320 °C; the mass ratio of magnesium oxide, lanthanum oxide and alumina is (2 to 3):1:(3 to 4).

10. A preparation method of a scratch-resistant and alkali-resistant baking paint material, which is used to prepare the scratch-resistant and alkali-resistant baking paint material according to any one of claims 1 to 9, and is characterized in that, It includes the following steps: Weigh the raw materials of the scratch-resistant and alkali-resistant baking paint material according to parts by weight, mix the raw materials evenly to obtain the scratch-resistant and alkali-resistant baking paint material; then coat the scratch-resistant and alkali-resistant baking paint material on the surface of the sanitary ware, with a coating thickness of 2 to 3 mm, and then bake at 120 to 125 °C for 5 minutes.

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