Impact-resistant and wear-resistant adhesive coating and preparation method thereof

An impact-resistant, wear-resistant and adhesive technology, applied in the field of wear-resistant adhesives, can solve the problems of reduced material temperature resistance, slow curing speed, unable to completely avoid bisphenol A crystallization, etc., so as to improve impact toughness and maintain resistance. The effect of temperature performance

Active Publication Date: 2016-02-03
邬苏焕
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, in this method, bisphenol F epoxy resin is not added, so the problem of bisphenol A crystallization in winter cannot be completely avoided; in addition, this method uses CTBN modified resin as a toughening agent, which will reduce the curing rate. After the temperature resistance of the material
Finally, this method uses mixed amine as the curing agent at room temperature, which cannot solve the problem of slow curing or even no curing in winter below 5°C

Method used

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  • Impact-resistant and wear-resistant adhesive coating and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] Production process of component A: According to the ratio of parts by mass, pre-mix 40 parts of bisphenol A epoxy resin, 40 parts of bisphenol F epoxy resin, and 1 part of silane coupling agent in a high-speed mixer according to the proportion, and stir for about 20min; then add 15 parts of aramid pulp, 300 parts of silicon carbide, 50 parts of alumina, and 2 parts of silicon dioxide according to the proportion, stir in a double planetary high-viscosity mixer, keep the vacuum at -0.08~-0.09Mpa, stir About 30min. After the stirring is stopped, wait for the mixture to cool down to the ambient temperature naturally, and discharge the material for filling. At this time, the form of component A is paste.

[0033] Production process of component B: according to the ratio of parts by mass, pre-mix 15 parts of polyamine, 2 parts of polythiol, 5 parts of silane coupling agent, and 2 parts of curing accelerator in a high-speed mixer according to the proportion, and stir for abou...

Embodiment 2

[0036] Production process of component A: According to the ratio of parts by mass, pre-mix 40 parts of bisphenol A epoxy resin, 40 parts of bisphenol F epoxy resin, and 1 part of silane coupling agent in a high-speed mixer according to the proportion, and stir for about 20 minutes; then add 2 parts of aramid pulp, 350 parts of silicon carbide, and 60 parts of alumina according to the proportion, and stir in a double planetary high-viscosity mixer, keeping the vacuum at -0.08~-0.09Mpa, and stirring for about 30 minutes. After the stirring is stopped, wait for the mixture to cool down to the ambient temperature naturally, and discharge the material for filling. At this time, the form of component A is paste.

[0037] Production process of component B: according to the ratio of parts by mass, pre-mix 15 parts of the above-mentioned polyamine, 2 parts of polythiol, 3 parts of silane coupling agent, and 1 part of curing accelerator in a high-speed mixer according to the proportion,...

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Abstract

The invention provides an anti-impact wear-resistant adhesive coating and a preparation method thereof. The wear-resistant adhesive coating consists of a component A and a component B, wherein the component A is a mixture of 2 to 15 parts of aramid pulp, 20 to 70 parts of bisphenol A epoxy resin, 10 to 40 parts of bisphenol F epoxy resin, 300 to 400 parts of silicon carbide, 50 to 100 parts of alumina, 0 to 5 parts of silica and 0 to 5 parts of silane coupling agent; the component B is a mixture of 5 to 15 parts of polyamine, 1 to 5 parts of polythiol, 20 to 40 parts of alumina, 0 to 5 parts of silane coupling agent, 2 to 8 parts of curing accelerator and 0.5 to 5 parts of silica; and the weight ratio of the component A to the component B in the using process is 10:1, and a hard and wear-resistant composite coating material is formed by reaction and can be used for bonding, repairing and protecting a metal surface. The bisphenol A epoxy resin and the bisphenol F epoxy resin are used as an adhesive substrate, the aramid pulp is used as a toughening agent, and silicon carbide and alumina particles with different particle sizes are added, so that fine particles are filled in large interparticle gaps, bulk density is increased, and the strength and wear resistance of the wear-resistant adhesive coating are improved.

Description

technical field [0001] The invention relates to a wear-resistant adhesive, in particular to an impact-resistant and wear-resistant adhesive coating and a preparation method thereof Background technique [0002] Using epoxy resin as an adhesive, adding silicon carbide, alumina and other wear-resistant particles as fillers, and reacting with amine curing agents to harden the composite material, it has been proven that it can bond, repair and protect metal equipment (such as slurry pumps, mud Pumps, fans, water turbines, powder conveying pipelines, elbows and mineral processing machinery parts, etc.). This kind of material has simple construction process, room temperature curing, no thermal stress deformation, etc., and has been widely used in the field of industrial equipment maintenance and protection. [0003] Composite materials using aramid fibers as impact-resistant additives have been widely used in the production of bulletproof vests, armor plates, optical fiber protec...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D163/02C09D177/10C09D7/12
Inventor 邬苏焕丁芳
Owner 邬苏焕
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