Dew point corrosion resisting paint and preparation method and use thereof

A pitting corrosion and coating technology, which is applied in the field of anti-dew point corrosion coatings and its preparation, can solve problems such as failure to achieve anti-dew point, use temperature, extension and corrosion resistance that cannot meet the requirements, and achieve quick results, social benefits and Considerable economic benefits and long service life

Active Publication Date: 2012-09-19
上海乐恒石油化工集团有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, these materials cannot meet the requirements in terms of service temperature, elongation and corrosion resistance, and cannot play the role of anti-dew point.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Coating composition ratio:

[0021] 26 parts of ethylene-propylene copolymer, 10 parts of bentonite, 3 parts of mica iron powder, 9 parts of silicic acid gel, 3 parts of corundum fine powder (more than 98%), 5 parts of alumina, 5 parts of emery, 3 parts of quartz, 29 parts of water-based polymer elastic base material, 3 parts of modified zinc silicate, 1 part of aluminum tripolyphosphate, 1.5 parts of titanium dioxide, 0.5 parts of 2-mercaptophenylprophiazole, 0.5 parts of dispersant (acrylate copolymer), 0.5 parts of disinfectant 0.2 parts of foaming agent (organic silicon), 0.3 parts of wetting agent (modified siloxane), etc., wherein the particle size of each component is not less than 300 mesh.

[0022] 22 parts of ethylene-propylene copolymer, 10 parts of bentonite, 3 parts of mica iron powder, 9 parts of silicic acid gel, 4 parts of binder, 3 parts of corundum fine powder (more than 98% content), 5 parts of alumina, 3 parts of stabilizer 5 parts of emery, 3 parts...

Embodiment 2

[0032] Coating composition ratio:

[0033]26 parts of ethylene-propylene copolymer, 9 parts of bentonite, 4 parts of mica iron powder, 10 parts of silicic acid gel, 4 parts of corundum fine powder (above 98%), 5 parts of alumina, 5 parts of corundum, 3 parts of quartz, 27 parts of water-based polymer elastic base material, 2 parts of modified zinc silicate, 1.5 parts of aluminum tripolyphosphate, 2 parts of titanium dioxide, 0.5 part of 2-mercaptophenylprophiazole, 0.5 part of dispersant (acrylate copolymer), 0.5 part of disinfectant 0.2 parts of foaming agent (organic silicon), 0.3 parts of wetting agent (modified siloxane), etc., wherein the particle size of each component is not less than 300 mesh.

[0034] 21 parts of ethylene-propylene copolymer, 9 parts of bentonite, 4 parts of mica iron powder, 10 parts of silicic acid gel, 5 parts of binder, 4 parts of corundum fine powder (above 98%), 5 parts of alumina, 3 parts of stabilizer 5 parts of emery, 3 parts of quartz, 24 p...

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PUM

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Abstract

The invention provides dew point corrosion resisting paint and a preparation method and use thereof. The dew point resisting paint can be used at the environment temperature of -25-24 DEG C, can keep flexibility and plasticity in the temperature range throughout, and can not crack or be liquefied. The dew point corrosion resisting paint comprises organic matters and inorganic matters. The organic matters comprise ethylene-propylene copolymer, 2-sulfhydryl benzothiazole and a water-based macromolecule elastic base material. The inorganic matters comprise bentonite, silica gel, corundum s fine powder and alumina. The preparation method includes mixing components according to the proportions, dispersing, polishing, soaking, warming reacting, stirring and filtering.

Description

technical field [0001] The invention belongs to the field of inorganic-organic coatings, in particular to an anti-dew point corrosion coating coated on the steel structure metal surface of an industrial furnace and a preparation method thereof. Background technique [0002] Industrial furnaces are the largest energy-consuming households in my country, and also account for the largest proportion of overall investment. The fuels used in industrial furnaces include coal, liquefied petroleum gas, natural gas, fuel oil and other mixed fuels. These fuels contain sulfur, chlorine and other components, which form SO after combustion. 2 / SO 3 , chloride ions, etc., condense into acid at low temperature, causing corrosion to the steel structure. As a new anti-corrosion technology in industrial furnaces, anti-dew point corrosion coatings are coated on the metal surface of the inner wall of industrial furnaces to effectively block the contact between acid gas and steel structure metal...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D123/16C09D201/00C09D5/08C09D7/12
Inventor 张春雨
Owner 上海乐恒石油化工集团有限公司
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