Manufacturing method of epoxy modification acrylate latex automatic deposit paint

A technology of acrylate glue and epoxy modification, which is applied in the direction of coating, etc., can solve the problems of hot stickiness and cold brittleness, poor weather resistance of epoxy resin, anti-back tack, poor heat resistance, etc., and achieve good impact resistance , good corrosion resistance, good adhesion

Inactive Publication Date: 2007-10-03
增城市裕新涂料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the advanced automatic deposition coatings at home and abroad are automatic deposition coatings made of acrylic emulsion or epoxy resin as the basic material. The acrylic emulsion automatic deposition coating has good weather resistance, water resistance and chemical resistance, but its disadvantage is that acrylic acid Emulsion automatic deposition coatings are prone to hot sticking and cold brittleness, poor anti-sticking and heat resistance, and poor outdoor weather resistance of epoxy resin

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Embodiment 1: raw material formula and synthesis process (black) of epoxy-modified acrylate latex automatic deposition paint:

[0030] 1. Preparation of pre-emulsion

[0031] Weigh 30 kg of epoxy resin Epon 828, weigh 3 kg of methacrylic acid (MAA), weigh 35 kg of butyl acrylate (BA), weigh 40 kg of methyl methacrylate (MMA), weigh Take 10 kg of styrene (ST), weigh 60 kg of deionized water, weigh 1.2 kg of sodium lauryl sulfate (K12), weigh 0.6 kg of nonylphenol polyoxyethylene ether (NP-9), and put Put it into a stainless steel reaction kettle and stir at room temperature for 0.3h-0.7h at a speed of 400-800rpm to form a pre-emulsion.

[0032] 2. Seed emulsion core-shell polymerization

[0033] In another stainless steel reaction kettle, stir and dissolve 40 kg of deionized water, 0.2 kg of sodium lauryl sulfate (K12), and 1 kg of allyloxy hydroxypropane sulfonate (COPS-1), and raise the temperature to 75°C Add 0.1 kg of sodium persulfate and 5 kg of aqueous solution...

Embodiment 2

[0036] Embodiment 2: raw material formula and synthesis process (yellow) of epoxy-modified acrylate latex automatic deposition paint:

[0037] 1. Preparation of pre-emulsion

[0038] Weigh 25 kg of epoxy resin E-44, weigh 2 kg of methacrylic acid (MAA), weigh 37 kg of butyl acrylate (BA), weigh 36 kg of methyl methacrylate (MMA), weigh Take 10 kg of styrene (ST), weigh 2 kg of acrylonitrile (AN), weigh 60 kg of deionized water, weigh 1.5 kg of sodium dodecylbenzenesulfonate (SDS), weigh 0.8 kg of nonane Phenol polyoxyethylene ether (NP-9), put it into a stainless steel reaction kettle and stir at room temperature for 0.3h-0.7h at a speed of 400-800rpm to form a pre-emulsion.

[0039] 2. Seed emulsion core-shell polymerization

[0040] In another stainless steel reaction kettle, 40 kg of deionized water, 0.2 kg of sodium dodecylbenzenesulfonate (SDS), and 1 kg of sodium vinylsulfonate (SVS) were stirred and dissolved. A solution of ammonium sulfate (APS) and 5 kg of water, w...

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PUM

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Abstract

This invention relates to preparation method of a epoxy modified acrylic latex automotive sediment dope. It adopts ethoxyline resin to modify acrylate, take acrylics monomer as solvent to dissolve ethoxyline resin, emulsify it to gain micro milk particle, then adopt hud emulsion polymerization craft to gain latices. It takes glycollic acid , iodic acid, citric acid as accelerating component of self- sediment painting. Add this self- sediment dope into obtained copolymer emulsion, not at all use organic solvent, avoid harm to environment.

Description

technical field [0001] The invention relates to a method for making an auto-deposition paint, in particular to a method for making an epoxy-modified acrylate latex auto-deposition paint. Background technique [0002] Autodeposition paint is also called self-deposition paint. Autodeposition paint is usually in the form of aqueous solution, latex or dispersion. It is a full-immersion water-based paint that automatically covers the surface of steel through chemical reactions. At present, the advanced automatic deposition coating at home and abroad is the automatic deposition coating made of acrylic emulsion or epoxy resin as the basic material. The acrylic emulsion automatic deposition coating has good weather resistance, water resistance and chemical resistance, but its disadvantage is that acrylic acid Emulsion self-deposition coatings are prone to hot sticking and cold brittleness, poor anti-sticking and heat resistance, and poor outdoor weather resistance of epoxy resin. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D151/08C08F283/10
Inventor 王小妹郭燕鹏张永彤张文参李瑞兵
Owner 增城市裕新涂料有限公司
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