High-temperature-curing inorganic anticorrosive coating for automobile brake disc
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A high-temperature curing, automobile braking technology, used in anti-corrosion coatings, coatings, etc., can solve the problems of easy peeling of paint films, water resistance, salt spray resistance, poor oil resistance, and difficult drying of paint films, and achieve adhesion. good effect
Inactive Publication Date: 2020-02-28
Jiangsu Jiunuo Architectural Materials Technology Co Ltd
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[0002] Currently on the market are mainly organic high-temperature curing anti-corrosion coatings. When used on brake discs, the paint film is difficult to dry under high temperature conditions. When the temperature reaches the standard baking condition, the paint film becomes soft. This problem is mainly due to organic resins. Due to the structure of the workpiece, the hardness of the paint film is lower than H after the workpiece is cooled, and the surface compactness is poor. Generally, the hardness reaches H after 3 days, but it affects the work efficiency. At the same time, the water resistance, salt spray resistance, and oil resistance of the paint film are poor. Impact test paint film is easy to fall off
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Embodiment 1
[0030] Inorganic anti-corrosion coating with pigment volume concentration PVC of 15%
[0031] A kind of high-temperature curing inorganic anti-corrosion coating for automobile brake discs, its composition by mass is as follows: 55 parts of reactive inorganic silicate resin with silicate as the matrix, 2 parts of modified zinc phosphate, 3 parts of composite iron-titanium powder, Aluminum hydroxide 3.2 parts, water 22 parts, talc powder 10 parts, dispersant BYK2012 2 parts, defoamer BYK035 0.8 parts, neutralizer AMP-95 1 part, bentonite 1 part.
Embodiment 2
[0033] Inorganic anti-corrosion coating with pigment volume concentration PVC of 20%
[0034] A high temperature curing inorganic anti-corrosion coating for automobile brake discs, the composition of which is as follows in parts by mass: 50 parts of reactive inorganic silicate resin based on silicate, 3 parts of modified zinc phosphate, 5 parts of composite iron-titanium powder, 3.2 parts of fluorosilicate, 22 parts of water, 12 parts of talc, 2 parts of dispersant, 0.8 part of defoamer BYK035, 1 part of neutralizing agent AMP-95, and 1 part of bentonite.
Embodiment 3
[0036] Inorganic anti-corrosion coating with pigment volume concentration PVC of 25%
[0037] A high temperature curing inorganic anti-corrosion coating for automobile brake discs, the composition of which is as follows in parts by mass: 50 parts of reactive inorganic silicate resin based on silicate, 3 parts of modified zinc phosphate, 5 parts of composite iron-titanium powder, 3.7 parts of borate, 20 parts of water, 17 parts of talc, 0.8 part of dispersant, 0.5 part of defoamer BYK035, 0.5 part of neutralizing agent AMP-95, 0.5 part of bentonite.
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Abstract
The invention relates to the technical field of anticorrosive paint, in particular to high-temperature-curing inorganic anticorrosive coating for an automobile brake disc and a preparation method thereof. The inorganic anticorrosive coating comprises the following components in parts by mass: 40-45 parts of inorganic resin, 3-5 parts of modified zinc phosphate, 5-6 parts of composite ferrotitaniumpowder, 3-4 parts of a curing agent, 10-15 parts of water, 20-25 parts of talcum powder, 0.8-2 parts of dispersing agents, 0.5-0.8 part of a defoaming agent, 0.5-1 part of a neutralizing agent and 0.5-1 part of bentonite. According to the inorganic anticorrosive coating, on the premise that coating thickness is 30 microns, salt spray resistance time can reach 1000 hours, and adhesive force is good; different types of dispersing agents are selected, so the influence on the salt spray resistance of a paint film is very outstanding; a hydrophobic ammonium salt forms a good water-resistant film,and a sodium salt hydrophilic dispersing agent is low in relative molecular mass, so the water resistance and salt fog resistance of a coating film are reduced; and the polycarboxylate ammonium salt with a special structure and high relative molecular mass is selected as the dispersing agent, so the corrosion resistance of the coating is remarkably improved.
Description
technical field [0001] The invention relates to the technical field of anti-corrosion coatings, in particular to a high-temperature-cured inorganic anti-corrosion coating for automobile brake discs and a preparation method thereof. Background technique [0002] Currently on the market are mainly organic high-temperature curing anti-corrosion coatings. When used on brake discs, the paint film is difficult to dry under high temperature conditions. When the temperature reaches the standard baking condition, the paint film becomes soft. This problem is mainly due to organic resins. Due to the structure of the workpiece, the hardness of the paint film is lower than H after the workpiece is cooled, and the surface compactness is poor. Generally, the hardness reaches H after 3 days, but it affects the work efficiency. At the same time, the water resistance, salt spray resistance, and oil resistance of the paint film are poor. The impact test paint film is easy to fall off. Conten...
Claims
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Application Information
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Patent Type & Authority Applications(China)
IPC IPC(8): C09D1/00C09D5/08C09D7/65
CPCC09D1/00C09D5/084C09D7/65
Inventor 许欣孔畅张志远
Owner Jiangsu Jiunuo Architectural Materials Technology Co Ltd
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