Chromium-free Dacromet coating having high insulation property, and preparation method thereof

A technology of insulation and coatings, applied in anti-corrosion coatings, epoxy resin coatings, coatings, etc., can solve the problems of poor wear resistance and low strength, achieve low production costs, increase strength and wear resistance, and good The effect of fluidity and adhesion

Inactive Publication Date: 2017-11-17
合肥新意境材料有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The object of the present invention is to provide a kind of chrome-free dacromet coating and preparation method thereof, overcome the bad wear resistance, the low strength shortcoming of dacromet coating existing at present, the technical scheme that the present invention adopts is as follows:

Method used

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Experimental program
Comparison scheme
Effect test

Embodiment

[0018] A chrome-free Dacromet coating with high insulation is characterized in that it is made from the following raw materials in parts by weight:

[0019] Mullite 5, corundum powder 5, silicon carbide 8, mica powder 4, polytetrafluoroethylene powder 10, epoxy resin E42 15, vinyl triamine 15, quartz powder 3, zinc powder 30, aluminum powder 30, silane even Joint agent KH550 50, ethanol 10, acetone 70, polydimethylsiloxane 0.6;

[0020] The zinc powder and aluminum powder are flake powders.

[0021] The high insulating chrome-free dacromet paint and preparation method thereof is characterized in that it comprises the following steps:

[0022] a. Use ethanol solution to ultrasonically disperse the corundum powder for 1-2 hours, filter and dry;

[0023] b. Grind the corundum powder obtained in step a, mullite, silicon carbide, mica powder, polytetrafluoroethylene powder, and quartz powder in a mortar to make them fully mixed, then transfer them to a crucible, place them in the...

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PUM

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Abstract

The invention discloses a chromium-free Dacromet coating having a high insulation property, and a preparation method thereof. The chromium-free Dacromet coating is prepared from, by weight, 3-5 parts of mullite, 3-5 parts of corundum powder, 4-8 parts of silicon carbide, 2-4 parts of mica powder, 5-10 parts of polytetrafluoroethylene powder, 10-15 parts of epoxy resin E42, 10-15 parts of vinyltriamine, 1-3 parts of quartz powder, 20-30 parts of zinc powder, 20-30 parts of aluminum powder, 40-50 parts of a silane coupling agent KH550, 5-10 parts of ethanol, 50-70 parts of acetone and 0.3-0.6 part of polydimethylsiloxane; The chromium-free Dacromet coating has a high strength, good resistance, good liquidity and good adhesion, a coating layer formed by the coating is dense and smooth, and the disadvantages of small strength and poor wear resistance of a Dacromet coating liquid are overcome, so the coating has a high market competitiveness; and the insulating mullite added in the invention is simple and has a low production cost, so the coating has the insulating function.

Description

technical field [0001] The invention relates to a dacromet paint, which belongs to the field of metal anticorrosion, in particular to a chrome-free dacromet paint with high insulation and a preparation method thereof. Background technique [0002] Corrosion of steel directly leads to a large number of accidents or hidden dangers of accidents every year, causing huge economic losses and seriously affecting national economic development and security. How to provide durable corrosion resistance has become a research hotspot. Dacromet coating is a metal anti-corrosion coating composed of scaly zinc powder, aluminum powder chromic anhydride and organic reducing agent. It has been widely used due to its strong corrosion resistance, high temperature resistance, and high permeability. However, , because the Dacromet treatment solution contains about 2% of highly carcinogenic and highly toxic Cr 6+ . Therefore, the current Dacromet coating has the disadvantages of being not enviro...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D163/00C09D5/10C09D5/25C09D7/12C08G59/50
CPCC09D163/00C08G59/5006C08K2003/0812C08K2003/0893C08K2003/2227C08K2201/014C09D5/00C09D5/103C09D5/106C08L83/04C08K13/06C08K9/08C08K9/06C08K3/22C08K3/34C08K3/36C08K3/08
Inventor 宋睿王贵东
Owner 合肥新意境材料有限责任公司
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