Polymer wear-resistance coating material

A wear-resistant coating and polymer technology, applied in the field of coating materials and wear-resistant coating materials, can solve the problems of reducing the wear resistance of coatings, increasing costs, easy delamination and bubbling, etc., to reduce labor intensity, reduce The effect of operating costs

Active Publication Date: 2011-05-04
NORTHWEST RES INST OF MINING & METALLURGY INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, these methods have different disadvantages. Bonding ceramic sheets is difficult to construct, and ceramic sheets are easy to fall off under strong impact conditions; bonding rubber, because rubber is a non-polar substance, has low bonding strength with the substrate and is easy to bond. Delamination and bubbling; bonded cast stone slabs, cast stone slabs have poor wear resistance, and the thickness of cast stone slabs generally used is more than 1cm, so it is difficult to construct on curved surfaces, and the gaps between cast stone slabs are filled with cement, which is wear-resistant The performance is low, and the gaps are easily eroded and worn by the fluid, which affects the overall wear resistance; when the wear-resistant parts are made of high-chromium alloy and other wear-resistant materials, the wear resistance is significantly improved, but the cost is also significantly increased, which is not conducive to large-scale promotion use
The "wear-resistant ceramic coating" disclosed in Chinese patent CN101012

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Add the polyurethane modified epoxy resin and main ingredients into the strong mixer according to the weight specified in Table 1 and stir for 5 minutes; then add the auxiliary materials and reinforcing agent into the above-mentioned strong mixer according to the specified weight in Table 1 and stir for 6 minutes to mix evenly to obtain the obtained The A component of the polymer wear-resistant coating material is required, and the A component is put into an iron bucket for use. When construction is used, the surface of the slurry pump that needs to be coated with the wear-resistant coating material is first cleaned and derusted, and then According to the weight listed in the curing agent in Table 1, diaminodiphenylmethane was taken as component B and component A was stirred and mixed uniformly to obtain a polymer wear-resistant coating material. Apply according to the required coating thickness, the application thickness is generally 1-100mm, for the slurry pump, the ap...

Embodiment 2

[0033] Prepare polyurethane modified epoxy resin, preparation method is as follows:

[0034] Add 20 moles of polyether into the reaction kettle, heat it, and when the temperature rises to 110-120°C, vacuumize for 0.6-1.2h, stop vacuuming and heating, and pass N 2 , in order to avoid contact with air, the whole reaction has been kept flowing with N 2, when the temperature drops to 40-50°C, add 20 moles of toluene diisocyanate and react at a temperature of 40°C for 1h, then slowly raise the temperature to 80°C for 2h, and finally raise the temperature to 90°C, and react for 0.5h under this condition , to obtain a PU prepolymer containing terminal NCO groups; add 90 parts by weight of epoxy resin to another reaction kettle, raise the temperature to 100-120°C, start vacuuming for 1-2h, and then introduce N 2 , the whole reaction has been kept feeding N 2 , when the temperature drops to 90-110°C, add 10 parts by weight of the above-reacted prepolymer into the epoxy resin, control...

Embodiment 3

[0037] Repeat the method of Example 1 by the weight of various components specified in Table 1, but the curing agent is changed to m-phenylenediamine, and the test results are listed in Table 1.

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Abstract

The invention relates to a polymer wear-resistance coating material, which is a coating material consisting of a component A and a component B, wherein the component B is a solidifier, and the weight part of the component B is 2 to 10 percent of that of the component A; the component A consists of 40 to 80 weight parts of a main ingredient which is one or more mixed in random ratio of silicon carbide, fused zirconia alumina, fused sub-white corundum, fused brown aluminium oxide, fused white corundum and fused mullite, 1 to 5 weight parts of an auxiliary material which is one or more mixed in a random ratio of asbestos powder, glass-ceramic powder, titanium white, aluminium oxide powder and mica powder, 0.5 to 2 weight parts of reinforcing agent which is one ore more mixed in a random ratio of polypropylene fibers, glass fibers and carbon fibers, and 10 to 20 weight parts of a bonding agent which is polyurethane modified epoxy resin. The construction and use of the coating material are convenient and quick, the bonding strength of the coating material is high and the use cost of the coating material is low; and the coating material has high wear resistance, corrosion resistance and air corrosion resistance.

Description

technical field [0001] The invention relates to a coating material in the field of composite materials, in particular to a wear-resistant coating material which resists erosion, wear and corrosion of fluid containing solid particles. Background technique [0002] In industries such as non-ferrous metals, metallurgy, and thermal power generation, there are fluid erosion, wear and corrosion in the working conditions of a large number of equipment spare parts. Due to the high running speed and fast line speed of the fluid, it also contains a large amount of hard particles and electrochemical Corrosion, the service life of equipment and spare parts is greatly reduced, which directly leads to an increase in the number of equipment shutdowns for maintenance, high maintenance costs, and increased work intensity of maintenance workers. At the same time, the operating efficiency of equipment is reduced, power consumption is increased, and abnormal shutdowns This leads to a substantia...

Claims

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Application Information

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IPC IPC(8): C09D163/00C09D7/12
Inventor 符嵩涛余江鸿吴斌周涛王进龙蔺学勇李瓛李振宇
Owner NORTHWEST RES INST OF MINING & METALLURGY INST
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