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Monomer casting (MC) nylon polishing abrasive grain used in roller polishing machine and preparation method of MC nylon polishing abrasive grain

A barrel polishing, polishing and grinding technology, applied in chemical instruments and methods, polishing compositions containing abrasives, other chemical processes, etc., can solve the problems of long time, difficult to remove and separate, affect the use effect, etc., and achieve easy separation. , excellent polishing effect, excellent wear resistance and polishing efficiency

Inactive Publication Date: 2013-01-09
HENAN UNIVERSITY OF TECHNOLOGY +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Due to the use of micro-powder ultra-fine abrasives, drum polishing can adapt to the polishing of complex three-dimensional shape workpiece surfaces, but its disadvantages are low polishing efficiency and long time
After a long time of polishing, a large amount of debris on the surface of the polished workpiece is mixed in the polishing material, which is difficult to remove and separate, which affects the use effect

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0022] According to its mass percentage: caprolactam monomer (MC nylon) 70%, polyethylene wax 2%, artificial diamond powder with particle size W0.5 / 1 20%, cerium oxide 8%;

[0023] Put the caprolactam monomer into a dry and clean reaction vessel, heat and melt it, add artificial diamond micropowder and cerium oxide powder, stir it vigorously, disperse it ultrasonically, add polyethylene wax, and pump it under a vacuum degree greater than 0.1 MPa and a temperature of 130°C. Vacuum dehydration is complete, then release the vacuum, add 0.5% (calculated by the mass of caprolactam) NaOH, continue to vacuumize and dehydrate completely, release the vacuum, adjust the solution to 100 ° C, add 0.5% (calculated by the mass of caprolactam) toluene diisocyanate (TDI ), stirred evenly, cast into a preheated tetrafluoroethylene mold, reacted for 30 minutes, cooled naturally to suffocating temperature, and demolded to obtain MC nylon diamond polishing abrasive grains.

Embodiment 2

[0025] According to its mass percentage: caprolactam monomer (MC nylon) 80%, polypropylene wax 3%, silicon carbide powder 15%, cerium oxide 2%, silicon carbide powder particle size W5;

[0026] Put the caprolactam monomer into a dry and clean reaction vessel, heat and melt it, add abrasives and cerium oxide powder, stir it vigorously, disperse it ultrasonically, add polypropylene wax, and vacuum dehydrate it at a vacuum degree greater than 0.1 MPa and a temperature of 130°C complete, then remove the vacuum, add 0.5% (calculated by the mass of caprolactam) NaOH, continue vacuuming and dehydration completely, release the vacuum, adjust the solution to 100 ° C, add 0.5% (calculated by the mass of caprolactam) toluene diisocyanate (TDI), Stir evenly, cast into a preheated tetrafluoroethylene mold, react for 30 minutes, cool naturally to suffocating temperature, and demold to obtain MC nylon silicon carbide polishing abrasive grains.

Embodiment 3

[0028] According to its mass percentage: caprolactam monomer (MC nylon) 90%, polyethylene wax 5%, nano-diamond 5%.

[0029] Put the caprolactam monomer into a dry and clean reaction vessel, heat and melt it, add nano-diamonds, stir vigorously, add polyethylene wax, vacuumize and dehydrate completely at a vacuum degree greater than 0.1 MPa and a temperature of 130°C, and then release the vacuum. Add 0.5% (calculated by the mass of caprolactam) NaOH, continue vacuuming to complete the dehydration, release the vacuum, adjust the solution to 100°C, add 0.5% (calculated by the mass of caprolactam) toluene diisocyanate (TDI), stir evenly, and cast to the pre- In a hot tetrafluoroethylene mold, react for 30 minutes, cool naturally to suffocation temperature, and demold to obtain MC nylon nano-diamond polishing abrasive grains.

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PUM

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Abstract

Disclosed are a monomer casting (MC) nylon polishing abrasive grain used in a roller polishing machine and a preparation method of the MC nylon polishing abrasive grain. The MC nylon polishing abrasive grain is characterized by comprising components of, by mass, 60%-90% of a caprolactam monomer, 0.5%-5% of suspension and thickening agents, 5%-20% of an abrasive material and 0%-10% of cerium oxide. The MC nylon polishing abrasive grain has good abrasion resistance performances and polishing efficiencies, simultaneously, fragments and polishing abrasive grains on a polished workpiece surface are easily separated, and the MC nylon polishing abrasive grain can be used for polishing surfaces of products of metal, wood, stones, glass, ceramic, plastics and the like.

Description

technical field [0001] The invention relates to MC nylon polishing abrasive grains used in a drum polishing machine and a preparation method thereof. Background technique [0002] Polishing refers to the use of polishing materials to level the surface of metal, wood, stone, glass, ceramics, plastics and other products to reduce roughness, make the uneven surface smooth and exquisite, and increase the gloss of the surface. In other words, polishing is to polish the surface of parts and products. Its main purpose is to remove the processing traces of the previous process, change the surface roughness of the parts, and obtain a bright and smooth surface for the product. Polishing is a comprehensive process of cutting processing, plastic processing and chemical action. [0003] Roller polishing is also called barrel grinding. A certain proportion of workpieces, abrasives and polishing agents are put into the roller or vibration polishing machine to force the internal objects to...

Claims

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Application Information

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IPC IPC(8): C09G1/02C09K3/14C08G69/18
Inventor 张琳琪杨家联彭进夏绍灵邹文俊郑红娟
Owner HENAN UNIVERSITY OF TECHNOLOGY
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