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Normal-temperature curing anti-corrosive high-temperature resistant coating and preparation method thereof

A high temperature resistant coating and room temperature curing technology, applied in the coating field, can solve the problem of not very successful chimney protection, and achieve the effect of improving toughness, good corrosion resistance and good heat resistance

Inactive Publication Date: 2019-08-02
河南省科学院同位素研究所有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although these technical means have been widely used abroad and have achieved certain success, they are still difficult to learn from in our country, so the current domestic chimney protection is not very successful.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] As the first embodiment, the room temperature curing anti-corrosion and high temperature resistant coating of the present invention is a room temperature curing two-component coating, including A component and B component, in parts by weight, wherein A component includes: epoxy resin 65 6 parts, silicon carbide short fiber 6 parts, filler 10 parts, anti-settling agent 0.5 parts, leveling agent 0.3 parts, defoamer 0.3 parts, coupling agent 2; component B is 1 part of curing agent. When preparing the above-mentioned room temperature curing anti-corrosion and high-temperature resistant coating, the A component is prepared according to the following steps: (1) Weigh the silicon carbide short fiber according to the proportion, dry it in vacuum at 100°C for 24 hours, and then disperse it in the modified phenolic epoxy vinyl resin Add a quantitative silane coupling agent and ultrasonically disperse for 30 minutes to obtain mixture a; (2) add fillers to mixture a according to th...

Embodiment 2

[0029] As the second embodiment, the room temperature curing anti-corrosion and high temperature resistant coating of the present invention is a room temperature curing two-component coating, including A component and B component, in parts by weight, wherein A component includes: epoxy resin 75 Parts, 8 parts of silicon carbide short fiber, 12 parts of filler, 0.8 parts of anti-settling agent, 0.4 parts of leveling agent, 0.4 parts of defoaming agent, 3 parts of coupling agent; B component is 3 parts of curing agent. Component A is prepared according to the following steps: (1) Weigh silicon carbide short fibers according to the proportion, dry them in vacuum at 100°C for 24 hours, and then disperse them in modified novolac epoxy vinyl resin, add quantitative silane coupling agent and ultrasonically disperse them for 30 minutes , to obtain mixture a; (2) add fillers to mixture a according to the proportion, stir and disperse evenly to obtain mixture b; (3) add the remaining raw...

Embodiment 3

[0031] As the second embodiment, the room temperature curing anti-corrosion and high temperature resistant coating of the present invention is a room temperature curing two-component coating, including A component and B component, in parts by weight, wherein A component includes: epoxy resin 85 Parts, 12 parts of silicon carbide short fiber, 15 parts of filler, 1 part of anti-settling agent, 1.5 parts of anti-settling agent, 0.5 parts of leveling agent, 0.5 parts of defoaming agent, 5 parts of coupling agent; Component B is 5 parts of curing agent . Component A is prepared according to the following steps: (1) Weigh silicon carbide short fibers according to the proportion, dry them in vacuum at 100°C for 24 hours, and then disperse them in modified novolac epoxy vinyl resin, add quantitative silane coupling agent and ultrasonically disperse them for 30 minutes , to obtain mixture a; (2) add fillers to mixture a according to the proportion, stir and disperse evenly to obtain mi...

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PUM

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Abstract

The invention discloses a normal-temperature curing anti-corrosive high-temperature resistant coating and a preparation method of the normal-temperature curing anti-corrosive high-temperature resistant coating. A modified novolac epoxy vinyl ester resin is used as a matrix, a silicon carbide fiber, a filler, an anti-settling agent, an auxiliary, a curing agent and the like are dispersing materials, the proportion of the materials is optimized to prepare the coating, the coating has the advantages of good corrosion resistance, high stability, high temperature resistance and the like; the modified novolac epoxy vinyl ester resin is prepared by adopting the novolac epoxy vinyl ester resin, an organic silicon resin and a coupling agent, the organic silicon resin strengthens the yield deformability of the novolac epoxy vinyl ester resin, a hybrid network structure is formed in a coat after the coating is coated, and the toughness and the tensile strength of the coat are improved; by using the silicon carbide fiber in the coating, the sedimentation phenomenon of the filler in the curing process of the coating is effectively reduced, the coating is toughened, the coat is prevented from cracking and peeling because of the external force and the impact, the service life of the coat is prolonged, the silicon carbide fiber has a high temperature resistant performance, and the high temperature resistance of the coating is improved.

Description

technical field [0001] The invention relates to the technical field of coatings, relates to a coating and a preparation method thereof, in particular to a normal temperature curing anti-corrosion and high temperature resistant coating and a preparation method thereof. Background technique [0002] People's awareness of environmental protection is increasing day by day. The state strictly controls air emissions. New factories must be equipped with exhaust gas purification systems. Coal-fired power plants are an important source of air pollution. If desulfurization devices are not added, it will cause serious air pollution. However, the chimneys of existing coal-fired power plants generally do not have special anti-corrosion measures, and the walls will become thinner and thinner with time, which will seriously threaten the normal operation. The shutdown of a power plant can cause huge economic losses. At present, the operation time of wet desulfurization is relatively short,...

Claims

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Application Information

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IPC IPC(8): C09D163/10C09D5/08C09D7/61C09D7/65
CPCC08K2201/011C08L2201/08C09D5/08C09D5/18C09D7/61C09D7/65C09D7/70C09D163/10C08L83/04C08K13/04C08K7/10
Inventor 刘树博张振亚郭文慧杨明成张本尚田青亮张宏娜赵惠东陈超王允赵梅红刘克波周杰樊红丽黄伦基宋卫东
Owner 河南省科学院同位素研究所有限责任公司
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