Graphite/elastic resin composite grains, preparation method thereof and application of graphite/elastic resin composite grains to manufacturing of polishing wheel

An elastic resin and polishing wheel technology, which is applied in the field of materials, can solve the problems of poor lubrication and heat dissipation of polishing wheels, and achieve the effects of improving deformation resistance, improving mechanical properties, and good lubrication and heat dissipation performance

Active Publication Date: 2019-05-28
天津佐源新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The graphite / elastic resin composite particles are used to replace graphite and used in polishing wheels prepared with unsaturated polyester resin as a binder, which can effectively solve the problems of poor lubrication and heat dissipation effects of existing resin polishing wheels

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] The present embodiment provides a kind of preparation method of graphite / elastic resin compound particle, comprises the steps:

[0038] (1) 935g particle size is 100μm, density is 2.15g / cm 3 The natural flake graphite and the trade mark are two-component commercially available elastic polyurethane prepolymers of HC-8350 and mix, and wherein A component, B component are 250g, after homogeneous mixing, obtain mixture a;

[0039] (2) Pour the mixture a obtained in step (1) into a rectangular pan, scrape and spread evenly to form a casting layer with a thickness of 0.3mm, solidify at 25°C for 10h, and obtain a graphite / elastic resin composite material after completion;

[0040](3) Process the graphite / elastic resin composite material obtained in step (2) into a wire material with a width of 300-500 μm, and then process the wire material into particles with a length of 300-500 μm to obtain a hexahedral graphite / elastic resin composite grain.

[0041] After testing, the gra...

Embodiment 2

[0046] The present embodiment provides a kind of preparation method of graphite / elastic resin compound particle, comprises the steps:

[0047] (1) 560g particle size is 200μm, density is 2.10g / cm 3 Graphene is mixed with the two-component commercially available elastic polyurethane prepolymer of HC-8350, wherein A component and B component are 435g, after homogeneous mixing, mixture a is obtained;

[0048] (2) Pour the mixture a obtained in step (1) into a rectangular pan, scrape and spread evenly to form a casting layer with a thickness of 0.3 mm, solidify at 60° C. for 0.5 h, and obtain a graphite / elastic resin composite material after completion;

[0049] (3) Process the graphite / elastic resin composite material obtained in step (2) into a wire material with a width of 1300-1500 μm, and then process the wire material into particles with a length of 1300-1500 μm to obtain graphite / elastic resin composite particles.

[0050] After testing, the graphite in the obtained graphi...

Embodiment 3

[0055] The present embodiment provides a kind of preparation method of graphite / elastic resin compound particle, comprises the steps:

[0056] (1) 1300g particle size is 1μm, density is 2.23g / cm 3 The carbon black of carbon black is mixed with the two-component commercially available elastic polyurethane prepolymer of HC-8350, and wherein A component, B component are 68g, after homogeneous mixing, obtain mixture a;

[0057] (2) Pour the mixture a obtained in step (1) into a rectangular pan, scrape and spread evenly to form a casting layer with a thickness of 0.3mm, solidify at 40°C for 5h, and obtain a graphite / elastic resin composite material after completion;

[0058] (3) Process the graphite / elastic resin composite material obtained in step (2) into a wire material with a width of 200-250 μm, and then process the wire material into particles with a length of 200-250 μm to obtain graphite / elastic resin composite particles.

[0059] After testing, the graphite in the obtaine...

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PUM

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Abstract

The invention relates to graphite / elastic resin composite grains, a preparation method thereof and application of the graphite / elastic resin composite grains to manufacturing of a polishing wheel. Thepolishing wheel is prepared from unsaturated polyester resin, abrasives, a filler and the graphite / elastic resin composite grains, wherein the graphite / elastic resin composite grains are prepared from the following components in percentage by volume: 30-70 vol% of graphite and 30-70 vol% of elastic resin, and the grain size of the composite grains is 200-1500 [mu]m. The graphite / elastic resin composite grains are applied to preparation of the resin polishing wheel, the obtained resin polishing wheel is excellent in friction resistance, lubricating performance and heat-dissipation performance,the processing quality is improved, the service life is prolonged, and the problem of poor lubricating and heat-dissipation effects during machining of the resin polishing wheel are solved.

Description

technical field [0001] The invention belongs to the field of materials, and in particular relates to a graphite / elastic resin compound particle, its preparation method and its application in making polishing wheels. Background technique [0002] The current grinding / polishing of stone, glass, ceramics and other materials widely uses unsaturated polyester resin bonded polishing wheels, which include unsaturated polyester resin as a bonding agent, silicon carbide or aluminum oxide as abrasives Hard abrasives and various inert / grinding fillers. Because the unsaturated polyester resin in the raw material composition is a liquid resin, and the resin casting molding process is adopted, it is also called a cast resin polishing wheel. [0003] There are various types of fillers used in this type of polishing wheel, including fillers that can help the polishing wheel improve processing performance, enhance the grinding aid or functionality of the resin system, and inert fillers that...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L67/06C08L75/04C08K13/02C08K13/04C08K7/00C08K3/04C08K3/22C08K3/30C08K3/26C08K3/34C08K3/16C08K3/36C08K3/40B24D18/00B24D3/28B24D3/34
Inventor 李珮豪彭波
Owner 天津佐源新材料科技有限公司
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