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Anti-corrosion organic silica gel adhesive for inner wall of desulfurization chimney and preparation method thereof

A silicone adhesive, organic technology, applied in the direction of adhesives, non-polymer adhesive additives, adhesive additives, etc., can solve the problems of high hardness of silicone resin, can not meet the construction environment and curing conditions of the inner wall of the chimney, and achieve adhesive performance Good, convenient glue mixing environment and use, long operation time

Active Publication Date: 2015-09-02
武汉双键新材料股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Patent CN91104918.5 introduces a kind of anti-corrosion adhesive, but its maximum service temperature is only 80°C, which obviously cannot meet the temperature requirements here
Patent 201010290484.X introduces a kind of anti-corrosion silicone coating, which can withstand high temperature of 350 ℃ and has excellent anti-corrosion performance. However, due to the high hardness of silicone resin and the need for heating and curing, it obviously cannot meet the construction environment and curing conditions of the inner wall of the chimney.

Method used

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  • Anti-corrosion organic silica gel adhesive for inner wall of desulfurization chimney and preparation method thereof
  • Anti-corrosion organic silica gel adhesive for inner wall of desulfurization chimney and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Add 100 parts of α.ω-hydroxyl-terminated polydimethylsiloxane with a viscosity of 20,000 centiwaves, 8 parts of simethicone oil with a viscosity of 100 centiwaves, and 2 parts of methanol into the first power mixer, mix and stir 10 minutes; then add 70 parts of microsilica powder with a particle size of 2500 mesh, 30 parts of washed kaolin with a mesh number of 1500, and a specific surface area of ​​200m 2 5 parts per gram of fumed white carbon black, and stirred in vacuum for 60 minutes (vacuum degree is 0.08Mpa), so as to prepare A composition, and set aside.

[0027] Add 100 parts of simethicone, 60 parts of ethyl orthosilicate, 10 parts of γ-aminopropyltrimethoxysilane, 5 parts of γ-(ethylenediamino)propyltrimethoxysilane into the second power mixer 1 part and 1 part of dibutyltin acetate were mixed and stirred for 10 minutes; then 2 parts of carbon black with a particle size of 50nm and a specific surface area of ​​200m were added 2 4 parts of fumed white carbon b...

Embodiment 2

[0032] Add 100 parts of α.ω-hydroxyl-terminated polydimethylsiloxane with a viscosity of 10000 centiwaves, 5 parts of simethicone oil with a viscosity of 100 centiwaves, and 3 parts of ethanol in the first power mixer and mix and stir for 10 minutes; then add 100 parts of microsilica powder with a particle size of 2000 mesh, 10 parts of washed kaolin with a mesh number of 3000, and a specific surface area of ​​150m 2 1 part of fumed white carbon black per gram, and stirred in vacuum for 60 minutes (vacuum degree is 0.08Mpa), so as to prepare A composition and set aside;

[0033] Add 100 parts of simethicone, 30 parts of ethyl orthosilicate, 20 parts of propyl orthosilicate, 10 parts of γ-aminopropyltrimethoxysilane, γ-(ethylenediamine ) 5 parts of propyltrimethoxysilane and 1 part of dibutyl tin acetate were mixed and stirred for 10 minutes; then 2 parts of carbon black with a particle size of 60nm and a specific surface area of ​​150m were added 2 6 parts of fumed white carb...

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Abstract

The invention discloses an anti-corrosion organic silicon adhesive for inner wall of desulfurization chimney and a preparation method thereof. The preparation method comprises following steps: preparing a component A, mixing 107 silicone rubber, fumed silica, silicon powder, silicone oil, kaolin, and a deep curing addictive together to prepare the component A; preparing a component B, mixing a cross-linking agent, tackifier, catalyst, silicone oil, fumed silica and carbon black to prepare the component B, and mixing the component A and the component B according to a certain ratio to prepare an anti-corrosion organic silicon adhesive for inner wall of desulfurization chimney. The anti-corrosion organic silicon adhesive for inner wall of desulfurization chimney has the advantages of high tensile strength, excellent elongation at break, high shear strength, long operation time, convenience for on-site construction, fast deep curing, and good adhesivity and elasticity, and is capable of applying to the fields of anti-corrosion of inner wall of desulfuration chimney and adhesive bonding and coating of various light glass bricks.

Description

technical field [0001] The invention relates to an adhesive and a preparation method thereof, in particular to an anti-corrosion organic silica gel adhesive for the inner wall of a desulfurization chimney and a preparation method thereof. Background technique [0002] Desulfurization chimney is a kind of desulfurization equipment in industrial production, especially the necessary process equipment in the production of thermal power plants, which can reduce the emission of sulfur dioxide and thus play a role in protecting the environment. However, a large amount of sulfur dioxide in the flue and the high temperature inside the chimney will inevitably have a strong corrosion effect on the inner wall of the chimney, thereby reducing the service life of the chimney. Therefore, the anti-corrosion treatment of the inner wall has become a problem that people are more and more concerned about. The usual way is to coat a layer of anti-corrosion material on the inner wall. Patent CN...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09J183/06C09J183/04C09J11/04C09J11/06
Inventor 雷木生游仁国黄異
Owner 武汉双键新材料股份有限公司
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