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High solid epoxy resin coating and preparation method thereof

A technology of epoxy resin coating and liquid epoxy resin, which is applied in the direction of epoxy resin coating, anti-corrosion coating, coating, etc., can solve the problems of not being able to use steel structure surface coating, development constraints, and high requirements for construction conditions, and achieve low Low cost, good corrosion resistance, low pollution effect

Inactive Publication Date: 2017-01-11
CHONGQING SANXIA PAINTS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the development of powder coatings in the field of steel structures is subject to certain restrictions due to the relatively high requirements for construction conditions.
However, water-based coatings generally cannot be used for surface coating of steel structures with high anti-corrosion requirements.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] High solid epoxy resin coating and its preparation process are as follows:

[0036] Take by weighing the SM-2041 curing agent (produced by Jiangsu Sanmu Group Co., Ltd.) 700kg as the modified amine curing agent of the first component, and 300kg as the R-2216 curing agent (produced by Guangzhou Ruiqi Chemical Co., Ltd.) of the phenalkamine curing agent , put it into a clean and dry stainless steel tank, stir evenly at a medium speed (500-800rpm), filter and pack after passing the inspection;

[0037] Take by weighing 40kg of 874L-X-90 epoxy resin, 1.2kg of BYK-161 dispersant (produced by German Bicker) as dispersing aid, R 298 titanium dioxide (produced by Pangang Group Chongqing Titanium Industry Co., Ltd.) as coloring pigment 40kg, 25kg of zinc phosphate as antirust pigment, 5.4kg of xylene and 8.4kg of n-butanol as solvent, mix and stir evenly, disperse to a fineness below 40μm with a sand mill, transfer to the paint mixing tank, and then add 874L -X-90 epoxy resin 2...

Embodiment 2

[0042] High solid epoxy resin coating and its preparation process are as follows:

[0043] Take by weighing 70kg of 2280 curing agent (produced by U.S. Air Chemical Industry) as modified amine curing agent, 30kg of R-2216 curing agent (produced by Guangzhou Ruiqi Chemical Co., Ltd.) as phenalkamine curing agent, add cleaning, In a dry stainless steel tank, stir evenly at a medium speed (500-800rpm), filter and pack after passing the inspection;

[0044] Take by weighing 28kg of NPEL-128 epoxy resin (produced by South Asia Epoxy Resin (Kunshan) Co., Ltd.), 0.84kg of BYK-161 dispersant as dispersing aid, 28kg of R 298 titanium dioxide as coloring pigment, as antirust pigment 17.5kg of zinc phosphate, 3.78kg of xylene and 5.88kg of n-butanol as solvent, mix and stir evenly, disperse to a fineness below 40μm with a sand mill, transfer to the paint mixing tank, and then add 140kg of NPEL-128 epoxy resin Add 22.4kg of SM 90 reactive diluent (produced by Jiangsu Sanmu Group Co., Ltd...

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Abstract

The invention discloses high solid epoxy resin coating and a preparation method thereof. The high solid epoxy resin coating is prepared from the components A and B, wherein the component A comprises a modified amine curing agent and a phenolic aldehyde amine curing agent; the component B comprises modified liquid epoxy resin, other auxiliaries and the like. The coating is mainly used for replacing traditional solvent based coating, and the defects that the solid content of the traditional solvent based coating is low, the VOC content is high and the environment pollution is heavy are overcome. According to the coating, the non-volatile matter content is above 90%, the volume solid part is above 80%, and the VOC is lower than 170g / L; the construction non-volatile matter content is above 85%, the constructability is good, the one time construction coating thickness can reach 200 mu m or above and sagging cannot occur; and the film corrosion resistance is better; the product has the advantages of high performance, low cost and low pollution.

Description

technical field [0001] The invention relates to an epoxy anticorrosion paint, in particular to a high-solid epoxy resin paint and a preparation method thereof. Background technique [0002] Due to the increasingly severe pressure from the environment, the development speed of various coatings in the global coatings industry has undergone certain changes, and high-solid content, powder, and water-based coatings are entering a stage of rapid development. However, the development of powder coatings in the field of steel structures is restricted to a certain extent due to the relatively high requirements for construction conditions. However, water-based coatings generally cannot be used for surface coating of steel structures with high anti-corrosion requirements. Due to the characteristics of low VOC emission, high-solid epoxy resin coatings can meet the requirements of the national consumption tax policy of 420g / L. At the same time, they have the advantages of high anti-corro...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D163/00C09D5/08C09D7/12C08G59/46C08G59/62
CPCC09D163/00C08G59/46C08G59/62C08K3/00C08K3/22C08K3/26C08K3/30C08K2003/2241C08K2003/265C08K2003/3045C09D5/084
Inventor 刘茂喜罗利萍李军
Owner CHONGQING SANXIA PAINTS CO LTD