Cathodic disbanding resistant anti-corrosion epoxy coating and making method thereof

A technology of epoxy coating and cathodic disbonding, applied in anti-corrosion coatings, epoxy resin coatings, coatings, etc., can solve the problem of cathodic disbondment damage of coatings, hard and brittle coatings, low adhesion, and poor compatibility with external cathodic protection systems and other problems, to achieve the effects of improving storage stability, improving suspension and dispersion, and improving resistance to cathodic disbonding

Inactive Publication Date: 2014-12-03
TIANJIN BO XING ENG SCI & TECH LIMITED COMPANY OF CNPC +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The existing common anti-corrosion coatings are used for anti-corrosion in the splash zone and full immersion zone of ships, offshore platforms and marine steel structures, etc., and have good seawater resistance. The disa

Method used

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Examples

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Effect test

Embodiment 1

[0013] The invention relates to a method for manufacturing an anti-cathode stripping anti-corrosion epoxy coating. In the bucket of stainless steel, with 1 weight part bisphenol A epoxy resin, 0.15 weight part aldehyde type epoxy resin, 0.2 weight part petroleum resin, 0.1 weight part active diluent, 0.05 weight part silane coupling agent, 0.015 weight part Part silicone oil and 0.02 parts by weight of fluorocarbon modified polyacrylate are added to 0.4 parts by weight of xylene, 0.2 parts by weight of n-butanol in the mixed solvent to be dispersed and dissolved, and 1 part by weight of wet-process sericite powder is added under the condition of stirring , 1 part by weight of barite powder, 0.5 part by weight of titanium dioxide, 0.02 part by weight of fumed silica, and 0.01 part by weight of carbon black, after high-speed stirring for 0.5 h, then use a sand mill to grind for 0.5 to 1 h to make component A; 0.8 parts by weight of cashew nut shell oil modified phenalkamine and ...

Embodiment 2

[0015] The invention relates to a method for manufacturing an anti-cathode stripping anti-corrosion epoxy coating. In a stainless steel barrel, 1 part by weight of bisphenol A epoxy resin, 0.2 part by weight of aldehyde epoxy resin, 0.15 part by weight of petroleum resin, 0.15 part by weight of reactive diluent, 0.08 part by weight of silane coupling agent, 0.02 part by weight of Part silicone oil and 0.03 parts by weight of fluorocarbon modified polyacrylate are added to the mixed solvent of 0.5 parts by weight xylene and 0.1 parts by weight of n-butanol to be dispersed and dissolved, and 0.9 parts by weight of wet-process sericite powder is added under the condition of stirring , 0.8 parts by weight of barite powder, 0.4 parts by weight of titanium dioxide, 0.03 parts by weight of fumed silica, and 0.02 parts by weight of carbon black, after stirring at a high speed for 0.5h, then grind for 0.5-1h with a sand mill to make component A; 0.6 parts by weight of cashew nut shell ...

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Abstract

The invention relates to a cathodic disbanding resistant anti-corrosion epoxy coating and a making method thereof; bisphenol A epoxy resin, novolac epoxy and petroleum resin are added into a xylene and n-butanol mixed solvent, then wet sericite powder, barite powder, titanium dioxide, carbon black, fumed silica, an active diluent, a silane coupling agent, silicone oil and fluorocarbon modified polyacrylate are added for mixing, stirring and grinding to prepare an A component of the cathodic disbanding resistant anti-corrosion epoxy coating, cashew nut shell oil modified phenolic amine and modified aliphatic amine are mixed to prepare a B component, when in use, the A component and the B component are mixed; the cathodic disbanding resistant anti-corrosion epoxy coating has good compatibility with an electrochemical protection system, has excellent cathodic disbanding resistant performance and good adhesion, flexibility, sea water resistance and chemical resistance, and can be used for corrosion protection of splash zones and full immersion zones of ships, offshore platforms and marine steel structures and the like.

Description

technical field [0001] The invention relates to a cathodic stripping and anti-corrosion epoxy coating and a manufacturing method, which can be used for anti-corrosion in the splash area and the full immersion area of ​​ships, offshore platforms, and marine steel structures. Background technique [0002] The existing common anti-corrosion coatings are used for anti-corrosion in the splash zone and full immersion zone of ships, offshore platforms and marine steel structures, etc., and have good seawater resistance. The disadvantage is that the external cathodic protection system is relatively Capacitance is poor, and the coating is prone to cathodic stripping damage when cathodic protection is used, and the coating is hard and brittle with low adhesion. Contents of the invention [0003] The object of the present invention is to avoid the disadvantages of the above-mentioned prior art and provide a coating and a manufacturing method that can improve the cathodic disbonding r...

Claims

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Application Information

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IPC IPC(8): C09D163/02C09D163/04C09D5/08C09D7/12
Inventor 韩忠智郭晓军何鱼游段绍明张其滨张静刘浩亮刘杨宇
Owner TIANJIN BO XING ENG SCI & TECH LIMITED COMPANY OF CNPC
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