High temperature resistant automobile special putty not influencing adhesion and preparation method thereof

A technology with high temperature resistance and adhesion, which is applied in the direction of filling slurry, etc., can solve the problems of poor adhesion, flying dust, and pollution of the vehicle body, so as to improve the grinding and storage properties, smooth the grinding, and have a wide range of applications Effect

Active Publication Date: 2011-11-23
石家庄市油漆厂
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the amount of putty is small, the dust will fly during the grinding process, which will pollute the entire vehicle body, and it is not easy to completely remove it
Moreover, after spraying the middle paint and topcoat, the adhesion between the primer and the middle paint and topcoat becomes worse in places where there i

Method used

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  • High temperature resistant automobile special putty not influencing adhesion and preparation method thereof
  • High temperature resistant automobile special putty not influencing adhesion and preparation method thereof
  • High temperature resistant automobile special putty not influencing adhesion and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1-5

[0022] Embodiment 1-5 Preparation of air-drying type unsaturated polyester resin

[0023] (1) Air-drying type unsaturated polyester resin, raw materials used for preparation are shown in Table 1 (unit: gram):

[0024] Table 1

[0025]

[0026] (2) Preparation of air-drying unsaturated polyester resin:

[0027] a. Mix diethylene glycol, triethylene glycol, tetrahydrophthalic anhydride, dicyclopentadiene, maleic anhydride and trimethylolpropane diallyl ether, and slowly heat up to 200±5°C for 3-5 hours , keep the esterification;

[0028] b. When the acid value is below 40, lower the temperature to 130°C, put it into the dilution tank that has been added with styrene, add hydroquinone and copper naphthenate at the same time, stir evenly, cool down and put it in a barrel, and then the air-dried unsaturated polyester resin.

Embodiment 6-10

[0029] Example 6-10 Preparation of special putty for automobiles

[0030] (1) Prepare raw materials as shown in Table 2 (unit: gram):

[0031] Table 2

[0032]

[0033]

[0034] (2) Preparation of special putty for automobiles:

[0035] Add air-drying unsaturated polyester resin, styrene, cobalt isooctanoate, white carbon black, organic bentonite, aluminum stearate, hydrogenated castor oil, kaolin and heavy calcium into the tank in order and stir evenly. After measuring the consistency, The finished product is obtained by three-roll rolling once, and it can be packed.

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PUM

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Abstract

The invention discloses a high temperature resistant automobile special putty not influencing adhesion. The putty consists of a main body ash and a curing agent in a weight ratio of 100:(2-3), wherein the main body ash consists of the following components in part by weight: 100 parts of air-dried unsaturated polyester resin, 1 to 5 parts of styrene, 1.5 to 2 parts of cobalt isooctoate, 0.5 to 1 part of white carbon black, 1 to 2 parts of organic bentonite, 3 to 5 parts of aluminum stearate, 1 to 2 parts of hydrogenated castor oil, 5 to 10 parts of kaolin, 90 to 100 parts of heavy calcium carbonate and 20 to 30 parts of light calcium carbonate. The putty for an automobile body has good drying property, polishing property and baking resistance, excellent adhesion and physical properties, and wide application range.

Description

technical field [0001] The invention relates to a special putty for automobiles, which belongs to the technical field of coatings. Background technique [0002] With the rapid development of the automobile industry, the requirements for the quality of automobiles are getting higher and higher, and the appearance is becoming more and more beautiful. In order to achieve a better look and feel effect, the body is generally stamped with a die, the flatness of the body is continuously improved, and the amount of putty is significantly reduced. From the previous full scraping of putty to partial filling and filling. Although the amount of putty is small, the dust will fly during the grinding process, which will pollute the entire vehicle body, and it is not easy to completely remove it. Moreover, after spraying the middle paint and the top coat, the adhesion between the primer and the middle paint and the top coat becomes worse in places where there is no putty. At present, the ...

Claims

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Application Information

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IPC IPC(8): C09D5/34
Inventor 左万杰乔晓谦李彦涛
Owner 石家庄市油漆厂
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