Acid-resistant epoxy enamel and preparation method thereof

An acid-resistant and epoxy-resistant technology, applied in the field of coatings, can solve the problems of short film performance and less obvious acid resistance of enamel paint, and achieve the effects of improving acid resistance, chemical medium resistance, and increasing compactness

Inactive Publication Date: 2019-09-03
CHONGQING SANXIA PAINTS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the acid resistance of the enamel corresponding to this kind of resin is not obvious, and it is even a short board in the performance of the paint film of this kind of device.

Method used

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  • Acid-resistant epoxy enamel and preparation method thereof
  • Acid-resistant epoxy enamel and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] An acid-resistant epoxy enamel, comprising the following components in parts by mass: epoxy resin: 40 parts; titanium dioxide: 20 parts; anti-settling agent: 0.4 parts; extender pigment: 5 parts; solvent: 25 parts; Modified aliphatic amine epoxy curing agent: 8 parts; 0.6 part of catalyst.

[0032] In the above components, the epoxy resin is bisphenol A type epoxy resin of model 601; the titanium dioxide is the rutile titanium dioxide of model R298; the anti-sedimentation agent is JF-38 organic bentonite; the body The pigment is precipitated barium sulfate; the solvent is xylene: cyclohexanone: n-butanol mixed in a volume ratio of 3:3:2; the modified aliphatic amine epoxy curing agent is modified 634 epoxy resin The triethylenetetramine of permanent diethylenetriamine or 634 epoxy resin modification comes from the solid-51 model product of Chongqing Three Gorges Paint Co., Ltd.; the catalyst is 2,4,6-tris(dimethylaminomethyl )phenol.

Embodiment 2

[0034] Different from Example 1, the proportioning content of each component is calculated in parts by mass. The content of each component in this embodiment is as follows:

[0035] Epoxy resin: 30 parts; titanium dioxide: 25 parts; anti-settling agent: 0.3 parts; extender pigment: 6 parts; solvent: 20 parts; modified aliphatic amine epoxy curing agent: 10 parts; catalyst 0.5 part.

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Abstract

The invention discloses an acid-resistant epoxy enamel and a preparation method thereof. The acid-resistant epoxy enamel comprises: 30-50 parts of epoxy resin; 19-25 parts of titanium dioxide; 0.3-0.5part of an anti-settling agent; 3-6 parts of extender pigment; 20-30 parts of a solvent; 8-10 parts of a modified aliphatic amine epoxy curing agent; and 0.5-0.8 part of a catalyst. Through formula design and optimization, the acid-resistant epoxy enamel disclosed by the invention has acid-resistant indicators obviously superior to general epoxy enamel on the market, and has other indicators equal to or approximately better than general epoxy enamel.

Description

technical field [0001] The invention belongs to the technical field of coatings, and in particular relates to an acid-resistant epoxy enamel and a preparation method thereof. Background technique [0002] Epoxy resins used for anti-corrosion coatings are mainly bisphenol A epoxy resins. Mainly through the reaction of the epoxy group on the molecular chain of the epoxy resin with the amine curing agent. The excellent alkali resistance and salt spray resistance of the paint film are the outstanding characteristics of epoxy resin paint. However, the acid resistance of the enamel corresponding to this kind of resin is not so obvious, and it is even a shortcoming of the paint film performance of this kind of device. [0003] In order to expand the application area of ​​epoxy enamel, improving the acid resistance of epoxy enamel is a technical problem urgently needed by those skilled in the art. Contents of the invention [0004] In order to solve the existing problems in the...

Claims

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Application Information

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Patent Type & AuthorityApplications(China)
IPC IPC(8): C09D163/00C09D7/61C08G59/50C08G59/68
CPCC08G59/5006C08G59/68C08K2003/2241C08K2003/3045C09D7/61C09D163/00C08K3/22C08K9/00C08K3/346C08K3/30
Inventor邓贤均李聪
OwnerCHONGQING SANXIA PAINTS CO LTD