Anti-spalling primer

An anti-peeling and primer technology, applied in the direction of coating, etc., can solve the problems of inapplicability, increased coating of accessories, weak adhesion, etc., achieve good cooking resistance and resistance to alternating cold and heat, reduce waste and Trouble, work efficiency improvement effect

Inactive Publication Date: 2014-03-05
ANHUI IND & TRADE VOCATIONAL TECHN COLLEGE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In today's automotive plastic parts coating industry, the main resin in the formula is mostly polypropylene resin mixed with other raw materials, and processed according to conventional production processes. The problem is that this plastic primer cannot be applied to plastics of different materials at the same time. Parts, but made for plastic parts of a certain material, so it adds a lot of inconvenience to the parts when painting
In addition, the existing commercially available plastic primer products have weak adhesion and poor cooking resistance

Method used

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Examples

Experimental program
Comparison scheme
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Embodiment Construction

[0015] The following is a list of the components and weight percentages of an anti-stripping primer of the present invention:

[0016] When preparing, weigh the raw materials according to the proportion, first add the modified thermoplastic acrylic resin to the dispersant and stir evenly, add the pigment and solvent while stirring, disperse and grind until the fineness is less than 20 microns, and then add the flow after cooling. For leveling agent, just stir evenly.

[0017] Table 1 Composition and content table

[0018]

[0019] Among them, the properties of the product prepared according to Example 1 are as follows:

[0020] Viscosity s

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PUM

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Abstract

The invention discloses an anti-spalling primer, comprising the following components by weight: 45-55% of modified thermoplastic acrylic resin, 10-15% of hexamethylated amino resin, 20-25% of a pigment, 6-15% of an auxiliary agent and the balance of a solvent. The product provided by the invention has good boiling resistance and thermal alternation resistance, and is superior to an existing product in the indexes such as pencil hardness, adhesion, impact strength and water resistance.

Description

Technical field [0001] The invention relates to a primer, in particular to a primer for plastic parts. Background technique [0002] Automotive plastic coatings are similar to those used for other metal parts. They are also divided into primers, primers, varnishes or topcoats. The primer can be directly applied to the surface of the surface-treated plastic substrate to cover the surface of the plastic parts. Flow marks and defects. With the rapid development of the automobile industry, the weight of automobiles has a trend of lightening. Therefore, plastic parts of various materials are increasingly used in automobiles. [0003] In today’s automotive plastic parts coating manufacturing industry, most of the main resin in its formulation is made of polypropylene resin and other raw materials, processed according to conventional production techniques. The problem is that this plastic primer cannot be used with different materials at the same time. It is made for plastic parts of a ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D133/00C09D161/32C09D7/12C09D5/00C08J7/04
Inventor 夏文先
Owner ANHUI IND & TRADE VOCATIONAL TECHN COLLEGE
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