Preparation method of long-oil alkyd resin anticorrosive enamel paint with high corrosion potential

A technology of long oil degree alkyd and corrosion potential, applied in the field of enamel paint, can solve the problems of not meeting anti-corrosion requirements and complex preparation methods.

Inactive Publication Date: 2021-02-26
GUANGXI UNIV FOR NATITIES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It is a varnish, which does not meet the anticorrosion requirements of petrochemical equipment, pipelines, offshore oil platforms, and ships. It can only play a decorative role, and the preparation method is complicated

Method used

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  • Preparation method of long-oil alkyd resin anticorrosive enamel paint with high corrosion potential
  • Preparation method of long-oil alkyd resin anticorrosive enamel paint with high corrosion potential
  • Preparation method of long-oil alkyd resin anticorrosive enamel paint with high corrosion potential

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Experimental program
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Effect test

Embodiment 1

[0018] 1. Material handling

[0019] The material 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 min, then placed in deionized water for ultrasonic cleaning for 3 times, each time for 5 min, and finally placed in an Sonicated in water and ethanol for 6 min and then dried for later use.

[0020] 2. Preparation of alkyd resin anticorrosive enamel

[0021] Add 1 mole of abietic acid and 2 moles of zinc acetate into the pulverizer, grind and disperse for 3 minutes at 3000 rpm, then transfer to a crucible, react in a reaction box at 180 degrees Celsius for 40 minutes, and then Transfer to the pulverizer while hot, pulverize for 3 minutes after cooling, then wash the product with a volume ratio of 30% ethanol aqueous solution, and dry it for 1 hour at a temperature of 80 degrees Celsius to obtain zinc abietate;

[0022] Add 30 parts by weight of dry long-oil alkyd resin, 2 parts by weight of zinc abietat...

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Abstract

The invention discloses a preparation method of long-oil alkyd resin anticorrosive enamel paint with high corrosion potential, which comprises the steps of by taking dry long-oil alkyd resin and zincabietate synthesized by the method as film-forming substances and isobutanol as a solvent, adding organic kaolin, organic bentonite, carbon black, simethicone and aluminum naphthenate serving as a drier, and stirring at a high speed to obtain the simple rosin-based long-oil alkyd resin anticorrosive enamel paint. The enamel paint has low corrosion current, high corrosion potential and large electrochemical impedance, that is, the enamel paint has good local corrosion resistance, and can be applied to anti-corrosion engineering in the fields of house balcony metal base railings, 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 preparation method of high corrosion potential long-oil alkyd resin anticorrosion enamel. Background technique [0002] Due to the low potential of petrochemical equipment, pipelines, offshore oil platforms, ships and other metal material equipment, they are extremely vulnerable to corrosion by the atmospheric environment, especially the parts of ship equipment below the waterline are extremely vulnerable to corrosion due to long-term immersion in corrosive media such as sodium chloride. It is easy to cause severe localized corrosion. The current treatment method is to add a large amount of heavy metal compounds such as lead tetraoxide to the paint formula. However, these highly toxic 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. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D167/08C09D7/20C09D7/61C09D7/65C09D7/63C09D7/62C09D5/08C09D5/23C09F9/00
CPCC08K2201/014C09D5/08C09D5/23C09D167/08C09F9/00C09D7/20C09D7/61C09D7/62C09D7/63C09D7/65C08L83/04C08K13/06C08K9/04C08K3/346C08K5/098C08K3/04
Inventor 余会成谭政亮韦冬萍韦贻春石展望
Owner GUANGXI UNIV FOR NATITIES
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