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Polyurea resin composition, its preparation method and its application in automotive metallic flash paint

A technology of polyurea resin and composition, applied in the field of polyurea resin composition, can solve the problems of undeveloped polyurea multi-hydrogen bond adduct, application limitation, insufficient orientation ability of aluminum powder, etc.

Active Publication Date: 2016-06-15
上海金力泰化工股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Similar products have appeared in Europe and the United States, but most of them have poor miscibility, and their application in different types of flash paints is greatly limited; moreover, European and American products generally only focus on improving the sag-leveling performance of coatings, and the hydrogen contained in them The number of bonds is insufficient, and the orientation ability to aluminum powder is not enough
[0003] So far, this field has not developed a polyurea multi-hydrogen bond adduct that not only imparts perfect leveling-sag performance to the glitter paint, but also has a good aluminum powder orientation function

Method used

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  • Polyurea resin composition, its preparation method and its application in automotive metallic flash paint
  • Polyurea resin composition, its preparation method and its application in automotive metallic flash paint
  • Polyurea resin composition, its preparation method and its application in automotive metallic flash paint

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Embodiment 1

[0075] The preparation of polyurea resin composition of the present invention

[0076] (1) Formula

[0077] 85.00 parts by weight of special acrylic resin of the present invention

[0078] 5.35 parts by weight of p-methoxybenzylamine

[0079] 3.65 parts by weight of 1,6-dihexyl diisocyanate

[0080] Trimethylbenzene 6.00 parts by weight

[0081] (2) synthesis

[0082] 1) cooling the special acrylic resin of the present invention in a refrigerator for 24 hours, so that the temperature of the resin is lower than 5°C;

[0083] 2) Add the cooled acrylic resin into a reaction kettle protected by ice water, stir at a speed of 400 rpm, and add methoxybenzylamine at the same time to fully dissolve;

[0084] 3) Quickly add 1,6-dihexyl diisocyanate to it, and increase the stirring speed to 1200 rpm, keep the temperature at 10°C or lower, and continue stirring for 1 hour;

[0085] 4) Detect the reaction product, if the solid content is 60±1%, and the fineness is ≤10um, it is judg...

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Abstract

The present invention relates to a polyurea resin composition, its preparation method and its application in automotive metal flash paint, and provides a polyurea resin composition, which is prepared in the presence of 5-10 parts by weight of non-polar solvent It is obtained by addition reaction of 2-5 parts by weight of polyisocyanate and 5-10 parts by weight of primary amine, wherein the addition reaction uses 80-90 parts by weight of acrylic resin as a carrier.

Description

technical field [0001] The invention relates to a polyurea resin composition, in particular to a polyurea multi-hydrogen bond adduct having good aluminum powder orientation function while imparting perfect leveling-sagging performance to the glitter paint. The invention also relates to a preparation method of the polyurea resin composition and its application in automotive metallic flash paint. Background technique [0002] Aluminum powder orientation is a much-studied but still immature field in the development of automotive metallic flash paints. Now known additives that can help aluminum powder orientation include: polyethylene wax, polyamide wax, organic bentonite, ethylene-vinyl acetate wax , filler slurry, etc. It is a cutting-edge research to use the adducts of polyisocyanates and amines to contain multiple hydrogen bonds, and the reversible ability of hydrogen bonds in the cycle of low shear force-high shear force-low shear force to help aluminum powder orientate f...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08G18/30C08G18/28C08L75/02C08L33/12C08F220/14C08F220/18C08F220/28C08F212/08C09D175/02C09D133/12C09D133/08
Inventor 张增飞王玉省陈小千郑冰李霞王祚成曹辉王志平许卉芝太成日
Owner 上海金力泰化工股份有限公司
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