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Bisphenol A polymer modified polyacrylate water-based baking varnish and preparation method thereof

A technology of polyacrylate and methyl methacrylate, applied in the field of water-based baking varnish, which can solve the problems of application limitations and no adhesion

Active Publication Date: 2021-06-15
泉州市三星精细化工有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are many performance defects in the existing water-based acrylic baking varnish, such as no adhesion on some non-ferrous metals such as: aluminum alloy, galvanized sheet and some non-metals such as polyphenylene sulfide, which brings limitations to the application

Method used

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  • Bisphenol A polymer modified polyacrylate water-based baking varnish and preparation method thereof

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Embodiment Construction

[0041] 1. bisphenol A polymer is made up of the raw material of following parts by weight: bisphenol A 40,128 epoxy resin 20, triphenylphosphine (10% n-butanol liquid) 0.15, lauric acid 40, the fourth group xylene 8 , the fifth group xylene 100;

[0042] The preparation steps of bisphenol A polymer are as follows:

[0043] A1. Add 128 epoxy resin and bisphenol A into a four-necked flask, raise the temperature to 80°C, start the mixer and add triphenylphosphine solution, stir well, then slowly raise the temperature to 110°C, stop heating, and wait for the heat release For the reaction, control the temperature at 145-150°C, and after maintaining for 30 minutes, take a sample to measure the epoxy value, and when the epoxy value is equal to zero, it is the end point;

[0044] A2. After reaching the end point, add lauric acid and the fourth group of xylene, and gradually raise the temperature to 160-170 to allow the esterification reaction;

[0045] A3. Keep reflux dehydration, s...

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Abstract

The invention relates to a water-based primer, in particular to bisphenol A polymer modified polyacrylate water-based stoving varnish, and the varnish is prepared from the following raw materials in parts by weight: 55 parts of matrix resin, 5 parts of N-ethyl morpholine, 3 parts of carbon black, 0.3 part of BYK-190, 0.25 part of BYK-028, 0.2 part of BYK-348, 11 parts of cyan CYMEL 325 amino resin and 25.25 parts of purified water. The novel water-based stoving varnish provided by the invention not only has the performance and low price of the existing water-based acrylic stoving varnish, but also has better adhesive force on most of non-ferrous metals and part of non-metals.

Description

technical field [0001] The invention relates to a water-based baking varnish, in particular to a bisphenol A polymer modified polyacrylate water-based baking varnish and a preparation method thereof. Background technique [0002] The existing water-based acrylate baking varnish has been used in some places because of its low price and good adhesion, gloss, hardness and other properties on metal iron. However, there are many performance defects in the existing water-based acrylic baking varnish, such as no adhesion on some non-ferrous metals such as: aluminum alloy, galvanized sheet and some non-metals such as polyphenylene sulfide, which brings limitations to the application . According to the responses of some companies and industry surveys, there is a real need for a new water-based baking varnish that has the performance of existing water-based acrylic baking varnishes and has good adhesion on a variety of non-ferrous metals and non-metals. [0003] Based on the above s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D151/08C09D7/61C09D7/63C09D7/20
CPCC09D151/08C09D7/61C09D7/63C09D7/20C08K5/357C08K3/04
Inventor 赵佳跃陈小平曾广萍
Owner 泉州市三星精细化工有限公司
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