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A kind of unsaturated polyester resin for antifreeze coating and preparation method thereof

A polyester resin, unsaturated technology, used in the field of unsaturated polyester resin for antifreeze coating and its preparation, can solve the problems of decreased coating performance and poor adhesion, and achieve the effect of good mechanical properties and chemical properties

Active Publication Date: 2021-02-09
福建省南安市华龙树脂有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide an antifreeze coating with higher stability for the phenomenon that the existing furniture coating has poor adhesion to the furniture surface at low temperature, and the coating performance drops seriously when cold and heat alternate. permanent unsaturated polyester resin

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016]Unsaturated polyester resin used for antifreeze coating. Its raw materials for preparation include the following components by weight: 52 parts of diethylene glycol, 180 parts of propylene glycol, 46 parts of dipropylene glycol, 160 parts of phthalic anhydride, 90 parts of tetrahydrophthalic anhydride, 128 parts of maleic anhydride Parts, 20 parts of hexamethylene diisocyanate, 0.06 parts of hydroquinone, 0.025 parts of copper naphthenate, 240 parts of styrene, 30 parts of trimethylolpropane diallyl ether, triallyl cyanurate 20 parts of ester.

Embodiment 2

[0018]Unsaturated polyester resin used for antifreeze coating. Its raw materials include the following components by weight: 47 parts of diethylene glycol, 175 parts of propylene glycol, 43 parts of dipropylene glycol, 156 parts of phthalic anhydride, 87 parts of tetrahydrophthalic anhydride, and 126 parts of maleic anhydride Parts, 33 parts of hexamethylene diisocyanate, 0.04 parts of hydroquinone, 0.027 parts of copper naphthenate, 235 parts of styrene, 32 parts of trimethylolpropane diallyl ether, and triallyl cyanurate 21 parts of ester.

Embodiment 3

[0020]Unsaturated polyester resin used for antifreeze coating. Its raw materials include the following components by weight: 55 parts of diethylene glycol, 190 parts of propylene glycol, 50 parts of dipropylene glycol, 170 parts of phthalic anhydride, 100 parts of tetrahydrophthalic anhydride, and 136 parts of maleic anhydride Parts, 35 parts of hexamethylene diisocyanate, 0.06 parts of hydroquinone, 0.03 parts of copper naphthenate, 250 parts of styrene, 30 parts of trimethylolpropane diallyl ether, triallyl cyanurate 19 parts of esters.

[0021]According to the raw material formula content of Examples 1-3 and the following method, the unsaturated polyester resin for antifreeze coating of the present invention is prepared, including the following steps:

[0022](1) Put diethylene glycol, propylene glycol, dipropylene glycol, phthalic anhydride, tetrahydrophthalic anhydride, and maleic anhydride into the reaction kettle, turn on the stirring, heat up to 200±5°C under nitrogen protection, ...

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PUM

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Abstract

The invention relates to the technical field of unsaturated polyester resin, in particular to unsaturated polyester resin for an anti-freezing coating and a preparation method thereof. The unsaturatedpolyester resin is prepared from the following raw materials according to parts by weight: 46-55 parts of diethylene glycol, 170-190 parts of propylene glycol, 42-50 parts of dipropylene glycol, 150-170 parts of phthalic anhydride, 80-100 parts of tetrahydrophthalic anhydride, 120-136 parts of maleic anhydride, 15-35 parts of hexamethylene diisocyanate, 0.03-0.06 part of hydroquinone, 0.02-0.03 part of copper naphthenate, 220-250 parts of styrene, 24-32 parts of trimethylolpropane diallyl ether and 18-22 parts of triallyl cyanurate. The unsaturated polyester resin with relatively high stability for the anti-freezing coating aims at the phenomena that a coating formed by existing furniture coating has poor adhesive force on the surface of furniture at a low temperature, and the performanceof the coating seriously degrades when hot and cold are alternate.

Description

Technical field[0001]The invention relates to the technical field of unsaturated polyester resins, in particular to an unsaturated polyester resin used for antifreeze coatings and a preparation method thereof.Background technique[0002]Unsaturated polyester paint is a kind of high-grade wood lacquer widely used. It is mainly unsaturated polyester resin prepared by polycondensation of dibasic acid (or acid anhydride) and diol. It acts as initiator and accelerator. Next, the liquid vinyl monomer (such as 18%-40% styrene or a mixture of styrene and methyl methacrylate) solution is cross-linked and cured to form a body structure and finally a film-forming coating. The film is hard, wear-resistant, water-resistant, heat-resistant, resistant to dilute acids, alkalis, solvents, oils and other chemicals, and has good insulation, and the appearance of the paint film is plump and thick, with high gloss, varnish color Light, high transparency, good gloss and color retention, and strong decorati...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08G63/54C09D167/06
CPCC08G63/54C09D167/06
Inventor 叶伟群谭永勇刘丽英陈键
Owner 福建省南安市华龙树脂有限公司