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

Abstract

The present application relates to the technical field of baking paint material, and discloses a kind of scratch-resistant and alkali-resistant baking paint material and a preparation method thereof, comprising the following weight parts of raw materials: water-based acrylic resin 35~40 parts, amino resin 15~20 parts, filler auxiliary agent 7~11 parts, functional agent based on scratch-resistant alkali 5~8 parts, silane coupling agent KH560 3~5 parts, film-forming cosolvent 2~5 parts, adhesion promoter 2~5 parts, leveling agent 1~3 parts, deionized water 20~25 parts.The scratch-resistant and alkali-resistant baking paint material of the present application uses water-based acrylic resin, amino resin, silane coupling agent KH560, film-forming cosolvent, adhesion promoter and leveling agent as functional auxiliaries, and simultaneously adds functional agent based on scratch-resistant alkali and filler auxiliary agent to harmonize and cooperate, to achieve synergistic effect, and the obtained product hardness, adhesion is improved coordinately, and the effect of alkali resistance, scratch resistance stability is remarkable.

Description

Technical Field

[0001] This invention relates to the field of baking paint materials technology, specifically to a scratch-resistant and alkali-resistant baking paint material and its preparation method. Background Technology

[0002] Bathroom fixtures are used in environments where they come into contact with alkaline solutions such as soap, requiring the paint to be alkali-resistant. Furthermore, their pencil hardness needs to be higher than other paints. Ordinary PU paint theoretically only achieves a pencil hardness of 6H. To increase hardness, a common practice is to introduce silicone branches into the polyurethane molecular chain, which can raise the pencil hardness to 8H. However, silicone branches are susceptible to alkali instability. The existing paint materials suffer from difficulties in balancing hardness and adhesion, as well as poor alkali resistance and scratch resistance. Improving the performance coordination and stability of the product is a key technical challenge of this invention. Therefore, this invention provides further improvements. Summary of the Invention

[0003] In view of the deficiencies of the prior art, the purpose of this invention is to provide a scratch-resistant and alkali-resistant baking paint material and its preparation method, so as to solve the problems mentioned in the background art.

[0004] The present invention solves the technical problem by adopting the following technical solution:

[0005] This invention provides a scratch-resistant and alkali-resistant baking paint material, comprising the following raw materials in parts by weight:

[0006] The ingredients are: 35-40 parts waterborne acrylic resin, 15-20 parts amino resin, 7-11 parts filler additives, 5-8 parts functional agents based on scratch and alkali resistance, 3-5 parts silane coupling agent KH560, 2-5 parts film-forming cosolvent, 2-5 parts adhesion promoter, 1-3 parts leveling agent, and 20-25 parts deionized water.

[0007] Preferably, the scratch-resistant and alkali-resistant paint material comprises the following raw materials in parts by weight:

[0008] The composition includes 37.5 parts water-based acrylic resin, 17.5 parts amino resin, 9 parts filler additives, 6.5 parts functional agent based on scratch and alkali resistance, 4 parts silane coupling agent KH560, 3.5 parts film-forming co-solvent, 3.5 parts adhesion promoter, 2 parts leveling agent, and 22.5 parts deionized water.

[0009] Preferably, the amino resin is prepared by mixing amino resin CYMEL327 and amino resin MR-603 in a weight ratio of 3:2.

[0010] The waterborne acrylic resin is waterborne acrylic resin PJ6257-70;

[0011] The film-forming co-solvent is one of diethylene glycol butyl ether and propylene glycol;

[0012] The adhesion promoter is adhesion promoter 2504;

[0013] The leveling agent is leveling agent PW-336.

[0014] Preferably, the filler additive is prepared by:

[0015] S01: Preparation of a blending agent for recombination:

[0016] Add 2-3 parts illite, 3-5 parts barium titanate and 1-2 parts lignocellulose by weight to 5-8 parts sodium dodecylbenzenesulfonate solution, stir evenly to obtain a mixed solution;

[0017] Flake talc powder, pyrophyllite and sodium silicate solution are mixed evenly in a weight ratio of (2~4):3:(5~8) to obtain a compounding agent;

[0018] The compounding agent and the blending liquid were ultrasonically treated at a weight ratio of 3:5. After ultrasonication, the mixture was filtered and dried to obtain the compounding blending agent.

[0019] S02: Calcium sulfate whiskers are stirred and modified in a modified solution that is 3 to 5 times the total weight of calcium sulfate whiskers. After stirring, the modified whisker solution is obtained.

[0020] S03: The modified whisker liquid and the compounded blending agent are mixed at a weight ratio of 7:5 and ball-milled at a speed of 1000~1500 r / min for 2 hours. After ball milling, the mixture is filtered and dried to obtain the filler additive.

[0021] Preferably, the sodium dodecylbenzenesulfonate solution has a mass fraction of 5-8%; and the sodium silicate solution has a mass fraction of 2-5%.

[0022] Preferably, the ultrasonic power of the ultrasonic treatment is 350~400W, and the ultrasonic treatment lasts for 1 hour; the stirring speed of the stirring modification treatment is 350~400r / min, and the stirring lasts for 2 hours.

[0023] Preferably, the modified liquid is prepared by:

[0024] Add 3-5 parts by weight of boron nitride and 1-2 parts by weight of zirconium silicate to 5-8 parts by weight of 5% yttrium nitrate solution, then add 2-3 parts by weight of montmorillonite and 1-2 parts by weight of 4% sodium alginate solution, stir thoroughly to obtain the modified solution.

[0025] Preferably, the preparation method of the scratch-resistant and alkali-resistant functional agent is as follows:

[0026] S11: Add 3-6 parts by weight of basalt fiber, 2-3 parts by weight of zirconium phosphate and 1-2 parts by weight of nano-silica sol to 5-8 parts by weight of sodium lignosulfonate solution with a mass fraction of 5%, stir evenly to obtain fiber liquid;

[0027] S12: Magnesium oxide, lanthanum oxide and aluminum oxide are blended and sintered for 1 hour. After sintering, a composite is obtained. The composite and fiber liquid are stirred evenly at a weight ratio of 3:5. Finally, the mixture is filtered and dried to obtain a functional agent based on scratch resistance and alkali resistance.

[0028] Preferably, the temperature of the blending sintering is 280~320℃; the mass ratio of magnesium oxide, lanthanum oxide and aluminum oxide is (2~3):1:(3~4).

[0029] This invention also provides a method for preparing a scratch-resistant and alkali-resistant baking paint material, comprising the following steps:

[0030] Weigh the raw materials of the scratch-resistant and alkali-resistant baking paint according to the weight proportions, mix the raw materials evenly to obtain the scratch-resistant and alkali-resistant baking paint material; then apply the scratch-resistant and alkali-resistant baking paint material to the surface of the bathroom parts, with a coating thickness of 2~3mm, and bake at 120~125℃ for 5 minutes.

[0031] Compared with the prior art, the present invention has the following beneficial effects:

[0032] The scratch-resistant and alkali-resistant baking paint material of this invention uses water-based acrylic resin and amino resin in combination with silane coupling agent KH560, film-forming co-solvent, adhesion promoter and leveling agent as functional additives. At the same time, functional agents and filler additives based on scratch resistance and alkali resistance are added to the mixture to enhance the effect. The resulting product has achieved coordinated improvement in hardness and adhesion, as well as significant effects in alkali resistance and scratch resistance stability.

[0033] The filler additive uses calcium sulfate whiskers, which are modified by stirring with a modifying liquid. The whisker structure of the calcium sulfate whiskers is improved and optimized in conjunction with the modifying liquid. Boron nitride and zirconium silicate in the modifying liquid are blended together, and then blended with yttrium nitrate solution, montmorillonite and 4% sodium alginate solution. Through the co-combination improvement of the raw materials, the flake boron nitride is blended with zirconium silicate and layered montmorillonite to reinforce the system, further enhancing the performance of the filler additive in the system and optimizing the performance coordination and stability of the product. The compounding agent is improved by combining the compounding agent and the blending liquid. The flake talc, pyrophyllite and sodium silicate solution in the compounding agent are optimized together, and illite, barium titanate and lignocellulose and sodium dodecylbenzene sulfonate solution are added. Through the co-combination improvement of the raw materials, it is further integrated into the system, thereby further improving the performance coordination and stability of the product.

[0034] Based on the improved sintering of magnesium oxide, lanthanum oxide, and alumina into the scratch-resistant and alkali-resistant functional agent, and further optimized formulation of the fiber liquid, the basalt fiber in the fiber liquid serves as the matrix. It is then blended with zirconium phosphate, nano-silica sol, and a 5% (w / w) sodium lignosulfonate solution. Through the needle-like structure of the basalt fiber combined with raw materials such as zirconium phosphate, the composite is further strengthened and blended. As a result, the scratch-resistant and alkali-resistant functional agent and filler additives have a better synergistic effect, and the product performance is further improved. Detailed Implementation

[0035] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to specific examples. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0036] This embodiment of a scratch-resistant and alkali-resistant baking paint material comprises the following raw materials in parts by weight:

[0037] The ingredients are: 35-40 parts waterborne acrylic resin, 15-20 parts amino resin, 7-11 parts filler additives, 5-8 parts functional agents based on scratch and alkali resistance, 3-5 parts silane coupling agent KH560, 2-5 parts film-forming cosolvent, 2-5 parts adhesion promoter, 1-3 parts leveling agent, and 20-25 parts deionized water.

[0038] The amino resin in this embodiment is prepared by amino resin CYMEL327 and amino resin MR-603 in a weight ratio of 3:2.

[0039] The waterborne acrylic resin is waterborne acrylic resin PJ6257-70;

[0040] The film-forming co-solvent is one of diethylene glycol butyl ether and propylene glycol;

[0041] The adhesion promoter is adhesion promoter 2504;

[0042] The leveling agent is leveling agent PW-336.

[0043] The preparation method of the filler additive in this embodiment is as follows:

[0044] S01: Preparation of a blending agent for recombination:

[0045] Add 2-3 parts illite, 3-5 parts barium titanate and 1-2 parts lignocellulose by weight to 5-8 parts sodium dodecylbenzenesulfonate solution, stir evenly to obtain a mixed solution;

[0046] Flake talc powder, pyrophyllite and sodium silicate solution are mixed evenly in a weight ratio of (2~4):3:(5~8) to obtain a compounding agent;

[0047] The compounding agent and the blending liquid were ultrasonically treated at a weight ratio of 3:5. After ultrasonication, the mixture was filtered and dried to obtain the compounding blending agent.

[0048] S02: Calcium sulfate whiskers are stirred and modified in a modified solution that is 3 to 5 times the total weight of calcium sulfate whiskers. After stirring, the modified whisker solution is obtained.

[0049] S03: The modified whisker liquid and the compounded blending agent are mixed at a weight ratio of 7:5 and ball-milled at a speed of 1000~1500 r / min for 2 hours. After ball milling, the mixture is filtered and dried to obtain the filler additive.

[0050] In this embodiment, the sodium dodecylbenzenesulfonate solution has a mass fraction of 5-8%; the sodium silicate solution has a mass fraction of 2-5%.

[0051] In this embodiment, the ultrasonic power for ultrasonic treatment is 350~400W, and the ultrasonic treatment lasts for 1 hour; the stirring speed for stirring modification treatment is 350~400r / min, and the stirring lasts for 2 hours.

[0052] The preparation method of the modified liquid in this embodiment is as follows:

[0053] Add 3-5 parts by weight of boron nitride and 1-2 parts by weight of zirconium silicate to 5-8 parts by weight of 5% yttrium nitrate solution, then add 2-3 parts by weight of montmorillonite and 1-2 parts by weight of 4% sodium alginate solution, stir thoroughly to obtain the modified solution.

[0054] The preparation method of the scratch-resistant and alkali-resistant functional agent in this embodiment is as follows:

[0055] S11: Add 3-6 parts by weight of basalt fiber, 2-3 parts by weight of zirconium phosphate and 1-2 parts by weight of nano-silica sol to 5-8 parts by weight of sodium lignosulfonate solution with a mass fraction of 5%, stir evenly to obtain fiber liquid;

[0056] S12: Magnesium oxide, lanthanum oxide and aluminum oxide are blended and sintered for 1 hour. After sintering, a composite is obtained. The composite and fiber liquid are stirred evenly at a weight ratio of 3:5. Finally, the mixture is filtered and dried to obtain a functional agent based on scratch resistance and alkali resistance.

[0057] The blending sintering temperature in this embodiment is 280~320℃; the mass ratio of magnesium oxide, lanthanum oxide and aluminum oxide is (2~3):1:(3~4).

[0058] The preparation method of a scratch-resistant and alkali-resistant baking paint material according to this embodiment includes the following steps:

[0059] Weigh the raw materials of the scratch-resistant and alkali-resistant baking paint according to the weight proportions, mix the raw materials evenly to obtain the scratch-resistant and alkali-resistant baking paint material; then apply the scratch-resistant and alkali-resistant baking paint material to the surface of the bathroom parts, with a coating thickness of 2~3mm, and bake at 120~125℃ for 5 minutes. Example 1

[0060] This embodiment of a scratch-resistant and alkali-resistant baking paint material comprises the following raw materials in parts by weight:

[0061] The composition includes 35 parts water-based acrylic resin, 15 parts amino resin, 7 parts filler additives, 5 parts functional agents based on scratch and alkali resistance, 3 parts silane coupling agent KH560, 2 parts film-forming co-solvent, 2 parts adhesion promoter, 1 part leveling agent, and 20 parts deionized water.

[0062] The amino resin in this embodiment is prepared by amino resin CYMEL327 and amino resin MR-603 in a weight ratio of 3:2.

[0063] The waterborne acrylic resin is waterborne acrylic resin PJ6257-70;

[0064] The film-forming co-solvent is diethylene glycol butyl ether;

[0065] The adhesion promoter is adhesion promoter 2504;

[0066] The leveling agent is leveling agent PW-336.

[0067] The preparation method of the filler additive in this embodiment is as follows:

[0068] S01: Preparation of a blending agent for recombination:

[0069] Add 2 parts illite, 3 parts barium titanate and 1 part lignocellulose by weight to 5 parts sodium dodecylbenzenesulfonate solution, stir evenly to obtain a mixture;

[0070] The flaky talc powder, pyrophyllite and sodium silicate solution were mixed evenly in a weight ratio of 2:3:5 to obtain the compounding agent;

[0071] The compounding agent and the blending liquid were ultrasonically treated at a weight ratio of 3:5. After ultrasonication, the mixture was filtered and dried to obtain the compounding blending agent.

[0072] S02: Calcium sulfate whiskers are stirred and modified in a modified solution with a total weight of 3 times that of calcium sulfate whiskers. After stirring, the modified whisker solution is obtained.

[0073] S03: The modified whisker liquid and the compounded blending agent are mixed at a weight ratio of 7:5 and ball-milled at a speed of 1000 r / min for 2 hours. After ball milling, the mixture is filtered and dried to obtain the filler additive.

[0074] In this embodiment, the sodium dodecylbenzenesulfonate solution has a mass fraction of 5%; the sodium silicate solution has a mass fraction of 2%.

[0075] In this embodiment, the ultrasonic power for ultrasonic treatment is 350W, and the ultrasonic treatment lasts for 1 hour; the stirring speed for stirring modification treatment is 350r / min, and the stirring lasts for 2 hours.

[0076] The preparation method of the modified liquid in this embodiment is as follows:

[0077] Add 3 parts by weight of boron nitride and 1 part by weight of zirconium silicate to 5 parts by weight of 5% yttrium nitrate solution, then add 2 parts by weight of montmorillonite and 1 part by weight of 4% sodium alginate solution, stir thoroughly to obtain the modified solution.

[0078] The preparation method of the scratch-resistant and alkali-resistant functional agent in this embodiment is as follows:

[0079] S11: Add 3 parts by weight of basalt fiber, 2 parts by weight of zirconium phosphate and 1 part by weight of nano-silica sol to 5 parts by weight of sodium lignosulfonate solution with a mass fraction of 5%, stir evenly to obtain fiber liquid;

[0080] S12: Magnesium oxide, lanthanum oxide and aluminum oxide are blended and sintered for 1 hour. After sintering, a composite is obtained. The composite and fiber liquid are stirred evenly at a weight ratio of 3:5. Finally, the mixture is filtered and dried to obtain a functional agent based on scratch resistance and alkali resistance.

[0081] The blending sintering temperature in this embodiment is 280°C; the mass ratio of magnesium oxide, lanthanum oxide and aluminum oxide is 2:1:3.

[0082] The preparation method of a scratch-resistant and alkali-resistant baking paint material according to this embodiment includes the following steps:

[0083] Weigh the raw materials of the scratch-resistant and alkali-resistant baking paint according to the weight proportions, mix the raw materials evenly to obtain the scratch-resistant and alkali-resistant baking paint material; then apply the scratch-resistant and alkali-resistant baking paint material to the surface of the bathroom parts with a coating thickness of 2mm, and then bake at 120℃ for 5 minutes. Example 2

[0084] This embodiment of a scratch-resistant and alkali-resistant baking paint material comprises the following raw materials in parts by weight:

[0085] The composition includes 40 parts water-based acrylic resin, 20 parts amino resin, 11 parts filler additives, 8 parts functional agents based on scratch and alkali resistance, 5 parts silane coupling agent KH560, 5 parts film-forming co-solvent, 5 parts adhesion promoter, 3 parts leveling agent, and 25 parts deionized water.

[0086] The amino resin in this embodiment is prepared by amino resin CYMEL327 and amino resin MR-603 in a weight ratio of 3:2.

[0087] The waterborne acrylic resin is waterborne acrylic resin PJ6257-70;

[0088] The film-forming co-solvent is diethylene glycol butyl ether;

[0089] The adhesion promoter is adhesion promoter 2504;

[0090] The leveling agent is leveling agent PW-336.

[0091] The preparation method of the filler additive in this embodiment is as follows:

[0092] S01: Preparation of a blending agent for recombination:

[0093] Add 3 parts illite, 5 parts barium titanate and 2 parts lignocellulose by weight to 8 parts sodium dodecylbenzenesulfonate solution, stir evenly to obtain a mixture;

[0094] The flaky talc powder, pyrophyllite and sodium silicate solution were mixed evenly in a weight ratio of 4:3:8 to obtain the compounding agent;

[0095] The compounding agent and the blending liquid were ultrasonically treated at a weight ratio of 3:5. After ultrasonication, the mixture was filtered and dried to obtain the compounding blending agent.

[0096] S02: Calcium sulfate whiskers are stirred and modified in a modified solution that is 5 times the total weight of calcium sulfate whiskers. After stirring is completed, the modified whisker solution is obtained.

[0097] S03: The modified whisker solution and the compounded blending agent are mixed at a weight ratio of 7:5 and ball-milled at a speed of 1500 r / min for 2 hours. After ball milling, the mixture is filtered and dried to obtain the filler additive.

[0098] In this embodiment, the sodium dodecylbenzenesulfonate solution has a mass fraction of 8%; the sodium silicate solution has a mass fraction of 5%.

[0099] In this embodiment, the ultrasonic power for ultrasonic treatment is 400W, and the ultrasonic treatment lasts for 1 hour; the stirring speed for stirring modification treatment is 400r / min, and the stirring lasts for 2 hours.

[0100] The preparation method of the modified liquid in this embodiment is as follows:

[0101] Add 5 parts by weight of boron nitride and 2 parts by weight of zirconium silicate to 8 parts by weight of 5% yttrium nitrate solution, then add 3 parts by weight of montmorillonite and 2 parts by weight of 4% sodium alginate solution, stir thoroughly to obtain the modified solution.

[0102] The preparation method of the scratch-resistant and alkali-resistant functional agent in this embodiment is as follows:

[0103] S11: Add 6 parts by weight of basalt fiber, 3 parts by weight of zirconium phosphate and 2 parts by weight of nano silica sol to 8 parts by weight of sodium lignosulfonate solution with a mass fraction of 5%, stir evenly to obtain fiber liquid;

[0104] S12: Magnesium oxide, lanthanum oxide and aluminum oxide are blended and sintered for 1 hour. After sintering, a composite is obtained. The composite and fiber liquid are stirred evenly at a weight ratio of 3:5. Finally, the mixture is filtered and dried to obtain a functional agent based on scratch resistance and alkali resistance.

[0105] The blending and sintering temperature in this embodiment is 320°C; the mass ratio of magnesium oxide, lanthanum oxide and aluminum oxide is 3:1:4.

[0106] The preparation method of a scratch-resistant and alkali-resistant baking paint material according to this embodiment includes the following steps:

[0107] Weigh the raw materials of the scratch-resistant and alkali-resistant baking paint according to the weight proportions, mix the raw materials evenly to obtain the scratch-resistant and alkali-resistant baking paint material; then apply the scratch-resistant and alkali-resistant baking paint material to the surface of the bathroom parts with a coating thickness of 3mm, and then bake at 125℃ for 5 minutes. Example 3

[0108] This embodiment of a scratch-resistant and alkali-resistant baking paint material comprises the following raw materials in parts by weight:

[0109] The composition includes 37.5 parts water-based acrylic resin, 17.5 parts amino resin, 9 parts filler additives, 6.5 parts functional agent based on scratch and alkali resistance, 4 parts silane coupling agent KH560, 3.5 parts film-forming co-solvent, 3.5 parts adhesion promoter, 2 parts leveling agent, and 22.5 parts deionized water.

[0110] The amino resin in this embodiment is prepared by amino resin CYMEL327 and amino resin MR-603 in a weight ratio of 3:2.

[0111] The waterborne acrylic resin is waterborne acrylic resin PJ6257-70;

[0112] The film-forming co-solvent is diethylene glycol butyl ether;

[0113] The adhesion promoter is adhesion promoter 2504;

[0114] The leveling agent is leveling agent PW-336.

[0115] The preparation method of the filler additive in this embodiment is as follows:

[0116] S01: Preparation of a blending agent for recombination:

[0117] 2.5 parts illite, 4 parts barium titanate and 1.5 parts lignocellulose were mixed and added to 6.5 parts sodium dodecylbenzenesulfonate solution according to the weight ratio, and stirred evenly to obtain a mixed solution;

[0118] Flake talc powder, pyrophyllite, and sodium silicate solution were mixed evenly in a weight ratio of 3:3:6.5 to obtain a compounding agent;

[0119] The compounding agent and the blending liquid were ultrasonically treated at a weight ratio of 3:5. After ultrasonication, the mixture was filtered and dried to obtain the compounding blending agent.

[0120] S02: Calcium sulfate whiskers are stirred and modified in a modified solution that is 4 times the total weight of calcium sulfate whiskers. After stirring, the modified whisker solution is obtained.

[0121] S03: The modified whisker solution and the blending agent were mixed at a weight ratio of 7:5 and ball-milled at a speed of 1250 r / min for 2 hours. After ball milling, the mixture was filtered and dried to obtain the filler additive.

[0122] In this embodiment, the sodium dodecylbenzenesulfonate solution has a mass fraction of 6.5%; the sodium silicate solution has a mass fraction of 3.5%.

[0123] In this embodiment, the ultrasonic power for ultrasonic treatment is 375W, and the ultrasonic treatment lasts for 1 hour; the stirring speed for stirring modification treatment is 375r / min, and the stirring lasts for 2 hours.

[0124] The preparation method of the modified liquid in this embodiment is as follows:

[0125] Add 4 parts by weight of boron nitride and 1.5 parts by weight of zirconium silicate to 6.5 parts by weight of 5% yttrium nitrate solution, then add 2.5 parts by weight of montmorillonite and 1.5 parts by weight of 4% sodium alginate solution, stir thoroughly to obtain the modified solution.

[0126] The preparation method of the scratch-resistant and alkali-resistant functional agent in this embodiment is as follows:

[0127] S11: Add 5 parts by weight of basalt fiber, 2.5 parts by weight of zirconium phosphate and 1.5 parts by weight of nano-silica sol to 6.5 parts by weight of sodium lignosulfonate solution with a mass fraction of 5%, stir evenly to obtain fiber liquid;

[0128] S12: Magnesium oxide, lanthanum oxide and aluminum oxide are blended and sintered for 1 hour. After sintering, a composite is obtained. The composite and fiber liquid are stirred evenly at a weight ratio of 3:5. Finally, the mixture is filtered and dried to obtain a functional agent based on scratch resistance and alkali resistance.

[0129] The blending and sintering temperature in this embodiment is 300°C; the mass ratio of magnesium oxide, lanthanum oxide and aluminum oxide is 2.5:1:3.5.

[0130] The preparation method of a scratch-resistant and alkali-resistant baking paint material according to this embodiment includes the following steps:

[0131] Weigh the raw materials of the scratch-resistant and alkali-resistant baking paint according to the weight proportions, mix the raw materials evenly to obtain the scratch-resistant and alkali-resistant baking paint material; then apply the scratch-resistant and alkali-resistant baking paint material to the surface of the bathroom parts with a coating thickness of 2.5mm, and then bake at 122.5℃ for 5 minutes.

[0132] Comparative Example 1:

[0133] Unlike Example 3, no filler additives were added.

[0134] Comparative Example 2:

[0135] Unlike Example 3, no modified whisker solution was added during the preparation of the filler additive.

[0136] Comparative Example 3:

[0137] Unlike Example 3, no modifying liquid was added to the modified whisker solution.

[0138] Comparative Example 4:

[0139] Unlike Example 3, boron nitride and zirconium silicate were not added to the modified solution.

[0140] Comparative Example 5:

[0141] Unlike Example 3, montmorillonite and sodium alginate solution were not added to the modified solution.

[0142] Comparative Example 6:

[0143] Unlike Example 3, no compounding agent was added during the preparation of the filler additive.

[0144] Comparative Example 7:

[0145] Unlike Example 3, no compounding agent was added to the compounding agent.

[0146] Comparative Example 8:

[0147] Unlike Example 3, no blending liquid was added to the blending agent in the re-processed product.

[0148] Comparative Example 9:

[0149] Unlike Example 3, illite and barium titanate were not added to the mixture.

[0150] Comparative Example 10:

[0151] Unlike Example 3, no scratch-resistant and alkali-resistant functional agents were added.

[0152] Comparative Example 11:

[0153] Unlike Example 3, no composite was added during the preparation of the scratch-resistant and alkali-resistant functional agent.

[0154] Comparative Example 12:

[0155] Unlike Example 3, no fiber liquid was added during the preparation of the scratch-resistant and alkali-resistant functional agent.

[0156] Comparative Example 13:

[0157] Unlike Example 3, no basalt fiber or zirconium phosphate was added to the fiber solution.

[0158] The products of Examples 1-3 and Comparative Examples 1-13 were subjected to hardness and adhesion tests under normal conditions and under alkali-resistant and scratch-resistant conditions. Under alkali-resistant and scratch-resistant conditions, the products were placed in a 5% sodium chloride salt spray environment for 12 hours, and then scratched under a load of 10N for 12 hours. This constituted one cycle, and the cycle was repeated 10 times. The test results are shown in Table 1.

[0159] Table 1. Product performance test results of Examples 1-3 and Comparative Examples 1-13

[0160]

[0161] As can be seen from Comparative Examples 1-13 and Examples 1-3, the product of Example 3 has excellent adhesion strength and hardness, and the two properties can be improved in a coordinated manner. At the same time, the product has excellent performance stability under alkali resistance and scratch resistance conditions.

[0162] As can be seen from Comparative Examples 1-13 and Example 3, the performance of the product deteriorates significantly when no filler additive or functional agent based on scratch resistance and alkali resistance is added. By using the combination and synergistic effect of the two, the performance of the product is significantly improved.

[0163] As can be seen from Comparative Examples 1-9, Comparative Example 10 and Example 3, the performance of the products all showed a different degree of deterioration when the modified whisker solution was not added in the preparation of the filler additive, the modified whisker solution was not added to the modified solution, the modified solution was not added to the modified solution, the modified solution was not added to the modified solution, the modified solution was not added to the modified solution, the modified solution was not added to the modified solution, and the modified solution was not added to the solution.

[0164] Only the compounding agent obtained by the specific method of this invention has significant performance effects, and the filler additive made by mixing the modified whisker liquid modified by the specific modified liquid of this invention with filler additives has the most significant performance effects. Other methods are not as effective as those of this invention.

[0165] As can be seen from Comparative Examples 11-13, Comparative Example 10 and Example 3, the performance of products deteriorated to varying degrees when no composite was added in the preparation of the scratch-resistant and alkali-resistant functional agent, no fiber liquid was added in the preparation of the scratch-resistant and alkali-resistant functional agent, and no basalt fiber and zirconium phosphate were added to the fiber liquid. Only the product with the scratch-resistant and alkali-resistant functional agent obtained by the specific method of this invention showed the most significant performance effect.

[0166] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within the present invention.

[0167] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider 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, Including the following parts by weight of raw materials: 35-40 parts of waterborne acrylic resin, 15-20 parts of amino resin, 7-11 parts of filler additives, 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 cosolvent, 2-5 parts of adhesion promoter, 1-3 parts of leveling agent, and 20-25 parts of deionized water; The preparation method of the functional agent based on scratch resistance and alkali resistance is as follows: S11: Add 3-6 parts by weight of basalt fiber, 2-3 parts by weight of zirconium phosphate and 1-2 parts by weight of nano-silica sol to 5-8 parts by weight of sodium lignosulfonate solution with a mass fraction of 5%, stir evenly to obtain fiber liquid; S12: Magnesium oxide, lanthanum oxide and aluminum oxide are blended and sintered for 1 hour at a temperature of 280~320℃. After sintering, a composite is obtained. The composite and fiber liquid are stirred evenly at a weight ratio of 3:5, and finally filtered and dried to obtain a functional agent based on scratch and alkali resistance. The preparation method of the filler additive is as follows: S01: Preparation of a blending agent for recombination: Add 2-3 parts illite, 3-5 parts barium titanate and 1-2 parts lignocellulose by weight to 5-8 parts sodium dodecylbenzenesulfonate solution, stir evenly to obtain a mixed solution; Flake talc powder, pyrophyllite and sodium silicate solution are mixed evenly in a weight ratio of (2~4):3:(5~8) to obtain a compounding agent; The compounding agent and the blending liquid were ultrasonically treated at a weight ratio of 3:

5. After ultrasonication, the mixture was filtered and dried to obtain the compounding blending agent. S02: Calcium sulfate whiskers are stirred and modified in a modified solution that is 3 to 5 times the total weight of calcium sulfate whiskers. After stirring, the modified whisker solution is obtained. S03: The modified whisker liquid and the blending agent are mixed at a weight ratio of 7:5 and ball-milled at a speed of 1000~1500 r / min for 2 hours. After ball milling, the mixture is filtered and dried to obtain the filler additive. The modified liquid is prepared by: Add 3-5 parts by weight of boron nitride and 1-2 parts by weight of zirconium silicate to 5-8 parts by weight of 5% yttrium nitrate solution, then add 2-3 parts by weight of montmorillonite and 1-2 parts by weight of 4% sodium alginate solution, stir thoroughly to obtain the modified solution.

2. The scratch-resistant and alkali-resistant baking paint material according to claim 1, characterized in that, The scratch-resistant and alkali-resistant baking paint material comprises the following raw materials in parts by weight: The composition includes 37.5 parts water-based acrylic resin, 17.5 parts amino resin, 9 parts filler additives, 6.5 parts functional agent based on scratch and alkali resistance, 4 parts silane coupling agent KH560, 3.5 parts film-forming co-solvent, 3.5 parts adhesion promoter, 2 parts leveling agent, and 22.5 parts 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 in a weight ratio of 3:

2.

4. The 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 sodium dodecylbenzenesulfonate solution has a mass fraction of 5-8%; the sodium silicate solution has a mass fraction of 2-5%.

6. The scratch-resistant and alkali-resistant baking paint material according to claim 1, characterized in that, The ultrasonic treatment uses an ultrasonic power of 350~400W and is performed for 1 hour; the stirring modification treatment uses a stirring speed of 350~400r / min and is performed for 2 hours.

7. The scratch-resistant and alkali-resistant baking paint material according to claim 1, characterized in that, The mass ratio of magnesium oxide, lanthanum oxide and aluminum oxide is (2~3):1:(3~4).

8. A method for preparing a scratch-resistant and alkali-resistant baking paint material, used to prepare the scratch-resistant and alkali-resistant baking paint material as described in any one of claims 1 to 7, characterized in that, Includes the following steps: Weigh the raw materials of the scratch-resistant and alkali-resistant baking paint according to the weight proportions, mix the raw materials evenly to obtain the scratch-resistant and alkali-resistant baking paint material; then apply the scratch-resistant and alkali-resistant baking paint material to the surface of the bathroom parts, with a coating thickness of 2~3mm, and bake at 120~125℃ for 5 minutes.

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