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High-temperature-resistant coating based on new material and processing technology thereof

A technology of high temperature resistant coatings and new materials, applied in anti-corrosion coatings, epoxy resin coatings, coatings, etc., can solve the problems of poor adhesion between coatings and substrate materials, peeling, short service life, etc., achieve excellent antibacterial properties, improve Longevity, improved wear resistance and mechanical properties

Pending Publication Date: 2019-06-25
王红玲
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Nowadays, we generally add epoxy resin modification to silicone resin, and the obtained composite material can take into account the properties of silicone resin and epoxy resin, and the performance of the coating is more excellent, but in the research, we found that epoxy resin modification After using silicone resin, the obtained coating has poor adhesion to the base material, and it is prone to peeling off at high temperature and has a short service life, which has caused great inconvenience to us.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0055] Prepare raw materials; weigh silicone resin, epoxy resin, γ-glycidyl ether propyl trimethoxysilane, titanium dioxide, aluminum oxide, solvent, polypropylene, tetrahydrofuran, ammonia water, 4,4-diamino Diphenylsulfone, nylon 66 salt, nylon 1010 salt, stearic acid, caprolactam, antioxidant, dimer acid, sebacic acid, ethylenediamine and piperazine, spare;

[0056] Then prepare the curing agent: First, weigh dimer acid, sebacic acid, ethylenediamine and piperazine in proportion, place them in a four-necked flask, heat to 50°C, react under 1MPa pressure for 0.5h, and then heat up to 200°C, react for 2 hours; evacuate to 50MPa, react for 3 hours, release pressure and cool to obtain dimer acid polyamide; then weigh nylon 66 salt, nylon 1010 salt, stearic acid, caprolactam, antioxidant, and place under high pressure In the reaction kettle, heat up to 240°C, react under 1MPa pressure for 2 hours, dehydrate under reduced pressure, and cool to obtain nylon-type polyamide; then ta...

Embodiment 2

[0062] Prepare raw materials; weigh silicone resin, epoxy resin, γ-glycidyl ether propyl trimethoxysilane, titanium dioxide, aluminum oxide, solvent, polypropylene, tetrahydrofuran, ammonia water, 4,4-diamino Diphenylsulfone, nylon 66 salt, nylon 1010 salt, stearic acid, caprolactam, antioxidant, dimer acid, sebacic acid, ethylenediamine and piperazine, spare;

[0063] Then prepare the curing agent: First, weigh dimer acid, sebacic acid, ethylenediamine and piperazine in proportion, place them in a four-necked flask, heat to 100°C, react under 2MPa pressure for 0.8h, and then heat up to 220°C, react for 2.5h; evacuate to 70MPa, react for 4h, release the pressure and cool to obtain dimer acid type polyamide; then weigh nylon 66 salt, nylon 1010 salt, stearic acid, caprolactam, antioxidant, place in In a high-pressure reactor, heat up to 260°C, react at a pressure of 1.5 MPa for 2.5 hours, dehydrate under reduced pressure, and cool to obtain nylon-type polyamide; then take dimer...

Embodiment 3

[0069] Prepare raw materials; weigh silicone resin, epoxy resin, γ-glycidyl ether propyl trimethoxysilane, titanium dioxide, aluminum oxide, solvent, polypropylene, tetrahydrofuran, ammonia water, 4,4-diamino Diphenylsulfone, nylon 66 salt, nylon 1010 salt, stearic acid, caprolactam, antioxidant, dimer acid, sebacic acid, ethylenediamine and piperazine, spare;

[0070] Then prepare the curing agent: first weigh dimer acid, sebacic acid, ethylenediamine and piperazine in proportion, place them in a four-necked flask, heat to 150°C, react for 1h under 3MPa pressure, and then raise the temperature to 240°C ℃, reacted for 3 hours; vacuumed to 80MPa, reacted for 5 hours, decompressed and cooled to obtain dimer acid type polyamide; then weighed nylon 66 salt, nylon 1010 salt, stearic acid, caprolactam, antioxidant, placed in high pressure reaction In the kettle, heat up to 280°C, react under 2MPa pressure for 3 hours, dehydrate under reduced pressure, and cool to obtain nylon-type p...

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PUM

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Abstract

The invention discloses a high-temperature-resistant coating based on a new material and a processing technology thereof. In industrial production, a plurality of metal devices which need to work in ahigh-temperature corrosion environment often exist; however, the metal equipment is damaged due to high-temperature corrosion after being used for a period of time; therefore, the invention providesthe high-temperature-resistant coating based on the new material and the processing technology thereof. The high-temperature-resistant coating comprises organic silicon resin and epoxy resin, whereingamma-glycidyl ether propyltrimethoxysilane is used as a compatibilizer to prepare the organic silicon modified epoxy resin. The coating is reasonable in formula design and optimized in process parameters. The process not only realizes the preparation of the high-temperature-resistant coating, but also improves the cohesiveness between the coating and a metal matrix, so that the coating can be well attached to the metal matrix. The coating has excellent high temperature resistance, wear-resistance, aging resistance, corrosion resistance and the like, and has a high application prospect.

Description

technical field [0001] The invention relates to the field of high-temperature-resistant coatings, in particular to a high-temperature-resistant coating based on new materials and a processing technology thereof. Background technique [0002] Silicone resin, a highly cross-linked network polyorganosiloxane, usually made of methyltrichlorosilane, dimethyldichlorosilane, phenyltrichlorosilane, diphenyldichlorosilane or methyl Various mixtures of phenyldichlorosilane, in the presence of organic solvents such as toluene, hydrolyzed at a lower temperature to obtain acidic hydrolyzate, the hydrolyzate is washed to remove acid, and the neutral primary polycondensate is thermally oxidized in air Or further polycondensation in the presence of a catalyst, and finally form a highly cross-linked three-dimensional network structure. [0003] In our industrial production, there are often many metal equipment that need to work in a high-temperature corrosion environment. The metal equipmen...

Claims

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Application Information

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IPC IPC(8): C09D183/04C09D163/00C09D5/08C09D7/61C09D7/63C09D7/65C08G59/44
Inventor 王红玲
Owner 王红玲
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