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Temperature-resistant wear-resistant coating and preparation method thereof

A wear-resistant coating and temperature-resistant technology, applied in the field of two-component epoxy adhesive, can solve problems such as glass transition temperature drop, affect product temperature resistance, and coating is easy to bond and fail, so as to improve the stress state, Facilitate facade sizing and facilitate large-scale production

Inactive Publication Date: 2014-06-04
HUBEI HUITIAN NEW MATERIALS STOCK CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The coating is toughened and modified by CTBN modified epoxy resin as a modified epoxy resin to improve the adhesion to the substrate, but the glass transition temperature drops significantly, which affects the temperature resistance of the product. Many machines, equipment and workpieces They are all used in an environment above 120°C, and the coating is prone to adhesion failure

Method used

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  • Temperature-resistant wear-resistant coating and preparation method thereof
  • Temperature-resistant wear-resistant coating and preparation method thereof
  • Temperature-resistant wear-resistant coating and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Component A consists of the following components:

[0032] HH-0802 modified epoxy resin 30%, neopentyl glycol diglycidyl ether 5%, silicon carbide 10%, fumed silica 3%, alumina fiber 2%, high alumina ball 50%;

[0033] Part B consists of the following components:

[0034] Phenalkamine curing agent 25%, KH-550 silane coupling agent 4%, silicon carbide 15%, fumed silica 3%, alumina fiber 1%, high alumina ball 52%.

[0035] The weight ratio of A and B components is 4:1.

Embodiment 2

[0037] Component A consists of the following components:

[0038] E-51 epoxy resin 15%, F-51 epoxy resin 5%, HH-0802 modified epoxy resin 10%, neopentyl glycol diglycidyl ether 8%, silicon carbide 15%, fumed silica 2 %, alumina fiber 3%, high alumina ball 42%; B component consists of the following components:

[0039] Phenalkamine curing agent 30%, KH-550 silane coupling agent 2%, silicon carbide 20%, fumed silica 2%, alumina fiber 2%, high alumina ball 44%.

[0040] The weight ratio of A and B components is 4:1.

Embodiment 3

[0042] Component A consists of the following components:

[0043] E-51 epoxy resin 20%, HH-0802 modified epoxy resin 10%, neopentyl glycol diglycidyl ether 2%, silicon carbide 15%, fumed silica 4%, alumina fiber 1%, high Aluminum ball 48%; B component is composed of the following components:

[0044] Phenalkamine curing agent 20%, KH-550 silane coupling agent 3%, silicon carbide 10%, fumed silica 2%, alumina fiber 3%, high alumina ball 62%.

[0045] The weight ratio of A and B components is 4:1.

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Abstract

The invention provides a temperature-resistant wear-resistant coating and a preparation method thereof, belongs to the technical field of two-component epoxy adhesives, and mainly solves the problems of poor temperature resistance and wear resistance of coatings in the prior art. The temperature-resistant wear-resistant coating is mainly composed of A and B two components, the component A comprises the following components: 10%-30% of epoxy resin, 5%-30% of modified epoxy resin, 3%-10% of a diluent, 10%-30% of silicon carbide, 1%-5% of fumed silica and 40%-70% of a high alumina ball; the component B comprises the following components: 20%-30% of a curing agent, 0%-3% of a promoter, 1%-5% of a silane coupling agent, 10%-30% of the silicon carbide, 1%-5% of the fumed silica and 40%-60% of the high alumina ball; the weight ratio of component A to component B is 4:1. The temperature-resistant wear-resistant coating has the advantages of good erosion wear resistance, simple coating process and low cost, is mainly used on the surface of a workpiece working in slurry erosion wear working conditions, and is also used in corrosion and wear surface repair.

Description

technical field [0001] The invention belongs to the technical field of two-component epoxy glue, and in particular relates to a temperature-resistant and wear-resistant coating and a preparation method thereof. Background technique [0002] With the advent of the meager profit era, more and more enterprises pay attention to energy saving and consumption reduction, and reduce production and use costs. During the mining, dressing and transportation of most steel mills and power plants, many pump bodies, volutes and pipelines are severely eroded and worn. Repairing and protecting them with wear-resistant coatings can greatly reduce the cost and increase the cost of replacement parts. service life. Therefore, epoxy resin wear-resistant coating is increasingly widely used in the repair of corroded and worn workpiece surfaces, such as turbine blades, mud pumps, ore concentrator parts, etc., because it has good erosion and wear resistance, and the coating process is simple. Low c...

Claims

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Application Information

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IPC IPC(8): C09D163/00C09D163/02C09D7/12
Inventor 李伟红韩胜利周柳章锋
Owner HUBEI HUITIAN NEW MATERIALS STOCK CO LTD
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