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Vehicle primer

A primer and automotive technology, applied in coatings, anti-corrosion coatings, epoxy resin coatings, etc., can solve the problems of paint film detachment, affect the appearance of the car, and the topcoat cannot be painted, and achieve crack resistance and water resistance Effect of good, good chemical resistance and anti-wear properties

Inactive Publication Date: 2014-11-05
DRAGON FISH PAINT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In the automobile industry, when repairing cars, it is often encountered that the metal layer absorbs too quickly when painting, and the topcoat cannot be applied to the predetermined area or discoloration occurs after painting, and even the paint film detaches and blocks. Phenomenon
In addition, when the car body is painted, pinholes often appear, and the pinholes can appear in both the primer and the varnish, which greatly affects the appearance of the car.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] The raw materials for the preparation of this vehicle primer are: 45 kg of water-based epoxy acrylic resin, 8 kg of polyether modified siloxane, 4 kg of talcum powder, 10 kg of polycarboxylate sodium salt, 1 kg of acrylic fiber, 45 kg of calcium carbonate , 30 kg of water;

[0017] Its preparation method comprises the following steps:

[0018] A, first inject 45 kilograms of water-based epoxy acrylic resin and 30 kilograms of water into the reactor;

[0019] B. Start the mixer, and add 10 kilograms of polycarboxylate sodium salt and 8 kilograms of polyether-modified siloxane into the reactor successively at a stirring speed of 400-600 rpm, and stir for more than 10 minutes;

[0020] C. Continue to add 45 kg of calcium carbonate, 4 kg of talcum powder, and 1 kg of acrylic fiber at a stirring speed of 400-600 rpm, and then increase the rotating speed to 1300-1500 rpm, and continue stirring for more than 20 minutes;

[0021] D. The material obtained in step C is pumped i...

Embodiment 2

[0023] The raw materials for the preparation of this vehicle primer are: 30 kg of water-based epoxy acrylic resin, 12 kg of polyether modified siloxane, 2 kg of talcum powder, 15 kg of polycarboxylate sodium salt, 3 kg of acrylic fiber, and 30 kg of calcium carbonate , 50 kg of water;

[0024] Its preparation method comprises the following steps:

[0025] A, first inject 30 kilograms of water-based epoxy acrylic resin and 50 kilograms of water into the reactor;

[0026] B. Start the mixer, and add 15 kilograms of polycarboxylate sodium salt and 12 kilograms of polyether modified siloxane into the reactor successively at a stirring speed of 400-600 rpm, and stir for more than 10 minutes;

[0027] C. Continue to add 30 kg of calcium carbonate, 2 kg of talcum powder, and 3 kg of acrylic fiber at a stirring speed of 400-600 rpm, and then increase the rotating speed to 1300-1500 rpm, and continue stirring for more than 20 minutes;

[0028] D. The material obtained in step C is pu...

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PUM

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Abstract

The invention discloses a vehicle primer, and relates to the coating technical field. The vehicle primer comprises the components in parts by weight: 30 parts-45 parts of water-based epoxy acrylic resin, 8 parts-12 parts of polyether modified siloxane, 2 parts-4 parts of a talcum powder, 10 parts-15 parts of sodium polycarboxylate, 1 parts-3 parts of acrylic fibers, 30 parts-45 parts of calcium carbonate, and 30 parts-50 parts of water. The prepared primer has good anti-cracking and waterproof performance, and besides has good chemical corrosion resistance and anti-wear performance.

Description

technical field [0001] The invention relates to the technical field of coatings, in particular to a primer for vehicles. Background technique [0002] The primer is the first layer of the paint system, which is used to improve the adhesion of the topcoat, increase the fullness of the topcoat, provide alkali resistance, provide anti-corrosion functions, etc., and at the same time ensure the uniform absorption of the topcoat. good effect. [0003] In the automobile industry, when repairing cars, it is often encountered that the metal layer absorbs too quickly when painting, and the topcoat cannot be applied to the predetermined area or discoloration occurs after painting, and even the paint film detaches and blocks. Phenomenon. In addition, when the car body is painted, pinholes often appear, and the pinholes can appear in both the primer and the varnish, which greatly affects the appearance of the car. Contents of the invention [0004] The technical problem solved by th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D163/10C09D7/12C09D5/08
Inventor 韦光南苏东荣梁勇坚
Owner DRAGON FISH PAINT
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