Preparation method of rosin-based short-oil alkyd resin anti-corrosive enamel paint with high pitting potential

A technology of alkyd resin and anti-corrosion enamel, applied in the field of enamel, can solve the problems of low pitting potential, low pitting resistance, improper matching, etc.

Inactive Publication Date: 2019-09-13
GUANGXI UNIV FOR NATITIES
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There are many hydrogen bonds in the alkyd resin macromolecules, and the intermolecular force is strong, which can be cross-linked with many compounds to form a film. Corrosion resistance, permeability resistance, wear resistance and good adhesion, etc., but there are many variable factors for cross-linking with alkyd resin. Currently, due to the inappropriate matching of selected monomers and alkyd resin, the point Corrosion potential is low, therefore, pitting resistance is not high, can not meet the needs of the actual harsh environment

Method used

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  • Preparation method of rosin-based short-oil alkyd resin anti-corrosive enamel paint with high pitting potential

Examples

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Embodiment 1

[0012] 1. Treatment of 6063 aluminum alloy sheet

[0013] The 6063 aluminum alloy sheet was polished with 1.0 μm and 0.3 μm alumina powder on a polishing cloth in turn, then placed in 5% hydrochloric acid for 5 minutes, then placed in deionized water for 5 minutes, and finally placed in anhydrous Sonicated in ethanol for 6 min and dried for later use.

[0014] 2. Preparation of anti-corrosion enamel with and without acrylpimaric acid (ethylenediamine) amide

[0015] Add 25 parts by weight of dry short oil alkyd resin, 2 parts by weight of acrylpimaric acid (ethylenediamine) amide and 50 parts by weight of o-xylene solvent into the reaction tank and stir evenly, then continue to add 15 parts by weight Talc powder, 15 parts by weight of bentonite, 2 parts by weight of dispersant polyethylene glycol 200, 2 parts by weight of leveling agent polyether modified polydimethylsiloxane interpolymer, 1 part by weight of drier Naphthenic acid iron salt is added together in the reaction ...

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Abstract

The invention discloses a preparation method of rosin-based short-oil alkyd resin anti-corrosive enamel paint with high pitting potential. Dry short-oil alkyd resin and acrylpimaric acid (ethylenediamine) amide are used as film-forming materials, o-xylene is used as a solvent, and then talcum powder, bentonite, a dispersant polyethylene glycol 200, a leveling agent polyether-modified polydimethylsiloxane copolymer and a drier ferric salt of naphthenic acid are added and the mixture is stirred at a high speed to obtain the osin-based short-oil alkyd resin anti-corrosive enamel paint with high pitting potential. The enamel paint has high pitting corrosion resistance and ageing resistance, and can be applied to heavy-duty anticorrosion engineering in the fields of house balcony iron-based handrails, petrochemical equipment, pipelines, offshore oil platforms, wharf facilities, ships and the like.

Description

technical field [0001] The invention relates to the field of enamel, in particular to a method for preparing a rosin-based short oil alkyd resin anticorrosive enamel with high pitting potential. Background technique [0002] Due to the corrosion of petrochemical equipment, pipelines, offshore oil platforms, ships and other equipment by the atmospheric environment, especially the parts of ship equipment below the waterline are prone to pitting corrosion, foaming, cracking and shedding due to long-term immersion in corrosive media such as sodium chloride . The current treatment method is to add a large amount of heavy metal compounds such as lead tetraoxide to the paint formula. However, these heavy metal lead plasmas are continuously precipitated in this type of anti-corrosion coating, which seriously pollutes the ocean, river and soil environment, and affects the global ecological environment and human body. cause serious impact. However, since there is no suitable alterna...

Claims

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Application Information

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IPC IPC(8): C09D167/08C09D5/08C09D7/20C09D7/61
CPCC09D5/08C09D7/20C09D7/61C09D167/08C08K3/34C08K3/346
Inventor 石展望余会成李浩韦贻春韦冬萍
Owner GUANGXI UNIV FOR NATITIES
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