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Corrosion resistant thermal spraying hole sealing agent and application method thereof

A technology of sealing agent and thermal spraying, which is used in anti-corrosion coatings, coatings, epoxy resin coatings, etc., can solve the problems of instable sealing agent storage, easy corrosion, and easy deformation of coating products, and achieves low raw material prices. , Improve high temperature corrosion resistance, meet the effect of usability and economy

Inactive Publication Date: 2015-07-29
SUZHOU TONGMING MACHINERY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to propose a corrosion-resistant thermal spray sealing agent and its application method, which can solve the problems of insufficient storage stability of traditional sealing agents, easy deformation, damage and corrosion of coating products, and effectively improve the coating quality. The use effect and service life

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] This embodiment is a corrosion-resistant thermal spray sealing agent. The parts by weight of the chemical composition of the sealing agent are: 55 parts of hydantoin epoxy resin, 10 parts of zinc molybdate, 6 parts of filler, 16 parts of solvent, 16 parts of diethylenetriamine, 6 parts of aluminum powder with a particle size of 40-60 μm, 5 parts of antimony trioxide, 4 parts of aluminum silicate, 6 parts of hydrophobic modified carboxylic acid sodium salt, 4 parts of silicone oil; the solvent of the present embodiment It is a mixed solvent of acetone and isopropanol at a volume ratio of 2:5; the filler is mixed at a ratio of silicon dioxide: molybdenum disulfide: barium sulfate = 3:1:2 in parts by weight.

[0019] The preparation method of the hydantoin epoxy resin of this embodiment is as follows: mix epichlorohydrin and 5,5-dimethylhydantoin at a ratio of 3:4 by weight, put the mixture into isopropanol solution, and The reaction was carried out at a temperature of 75°...

Embodiment 2

[0025] This embodiment provides a corrosion-resistant thermal spray sealing agent, the parts by weight of the chemical composition of the sealing agent are: 60 parts of hydantoin epoxy resin, 15 parts of zinc molybdate, 7 parts of filler, 19 parts of solvent, 20 parts of phenolic modified amine, 7 parts of aluminum powder with a particle size of 40-60 μm, 8 parts of antimony trioxide, 6 parts of aluminum silicate, 7 parts of polyacrylic acid sodium salt, and 5 parts of silicone oil; the solvent of this embodiment is acetone and iso A mixed solvent in which propanol is mixed in a volume ratio of 2:5; the filler is mixed in a ratio of parts by weight of silicon dioxide:molybdenum disulfide:barium sulfate=3:1:2.

[0026] The preparation method of the hydantoin epoxy resin of this embodiment is as follows: mix epichlorohydrin and 5,5-dimethylhydantoin at a ratio of 3:4 by weight, put the mixture into isopropanol solution, and The reaction was carried out at a temperature of 85° C....

Embodiment 3

[0032] The present embodiment is a corrosion-resistant thermal spray sealing agent, and the parts by weight of the chemical composition of the sealing agent are: 65 parts of hydantoin epoxy resin, 20 parts of zinc molybdate, 10 parts of filler, 25 parts of solvent, 22 parts of phenolic modified amine, 8 parts of aluminum powder with a particle size of 40-60 μm, 10 parts of antimony trioxide, 8 parts of aluminum silicate, 8 parts of polyacrylic acid sodium salt, and 6 parts of silicone oil; the solvent of this embodiment is acetone and iso A mixed solvent in which propanol is mixed in a volume ratio of 2:5; the filler is mixed in a ratio of parts by weight of silicon dioxide:molybdenum disulfide:barium sulfate=3:1:2.

[0033] The preparation method of the hydantoin epoxy resin of this embodiment is as follows: mix epichlorohydrin and 5,5-dimethylhydantoin at a ratio of 3:4 by weight, put the mixture into isopropanol solution, and The reaction was carried out at a temperature of...

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PUM

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Abstract

The invention discloses a corrosion resistant thermal spraying hole sealing agent which comprises the following chemical components in parts by weight: 55-65 parts of hydantoin epoxy resin, 10-20 parts of zinc molybdate, 6-10 parts of a filler, 16-25 parts of a solvent, 16-22 parts of a curing agent, 6-8 parts of aluminite powder with the grain size of 40-60 microns, 5-10 parts of antimonous oxide, 4-8 parts of aluminium silicate, 6-8 parts of a dispersing agent and 4-6 parts of silicone oil, wherein the solvent is a mixed solvent of acetone and isopropanol with the volume ratio of 2:5; the filler is a mixture of silicon dioxide, molybdenum disulfide and barium sulfate with the weight ratio of 3:1:2. The corrosion resistant thermal spraying hole sealing agent has excellent permeability and stability as well as remarkably improved abrasion resistance, high-temperature corrosion resistance, acid liquor corrosion resistance and the like.

Description

technical field [0001] The invention relates to a sealing agent and a using method thereof, in particular to a corrosion-resistant thermal spraying sealing agent and a using method thereof, belonging to the technical field of thermal spraying. Background technique [0002] With the development of modern surface technology, thermal spray coatings with high performance-price ratio have been used more and more widely. For example, thermal spray coating on the surface of steel production line rollers can significantly improve its wear resistance, impact resistance, corrosion resistance and other properties. However, the sprayed coating has certain pores, and the pores have a certain influence on the use effect and service life of the coating. [0003] The main way to solve the pores of the thermal spray coating is to use the sealing technology, that is, to apply the sealing agent and penetrate into the thermal spray coating to fill the gaps of the thermal spray coating, so as t...

Claims

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Application Information

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IPC IPC(8): C09D163/00C09D133/02C09D183/04C09D5/10C09D7/12B05D1/38B05D3/02
CPCB05D1/38B05D3/0209C08L2205/03C09D5/103C09D163/00C08L83/04C08K13/02C08K2003/0812C08K3/2279C08K3/36C08K2003/3009C08K2003/3045C08K3/34C08L33/02
Inventor 黄莉吴明黄世宇刘芳
Owner SUZHOU TONGMING MACHINERY