Environmentally-friendly energy-saving and high-performance composite grinding sheet

Abstract

The invention provides an environmentally-friendly energy-saving and high-performance composite grinding sheet. The composite grinding sheet comprises a base, an adhesive and a grinding material, wherein the grinding material is attached to the base through the adhesive; the adhesive is formed by mixing 57 to 65 percentage by weight of a composition A and 35 to 43 percentage by weight of a composition B; the composition A comprises phenolic resin, trimethylolpropane tris-acrylate, a packing, a surface active agent, a diluent, a coupling agent, a fire retardant, an ethylene-vinyl acetate copolymer, linear low-density polyethylene and high-density polyethylene; the composition B comprises phenolic resin, polyphenylene oxide resin powder, sodium carbonate, epoxy resin, methyl methacrylate, butyl acrylate, a packing, a coupling agent, a diluent, an antistatic agent and a catalyst. The grinding sheet is sharp, quick, long in service life, resistant to high grinding temperature, and outstanding in moisture resistance; a preparation method of the grinding sheet can effectively prevent deformation; the product is high in tensile strength, high in adhering performance, and outstanding in grinding performance.

Description

technical field [0001] The invention belongs to the field of coated abrasives, and relates to an environment-friendly and energy-saving high-performance composite abrasive sheet. Background technique [0002] Abrasive sheet refers to the use of ultra-precision coating technology to uniformly disperse selected micron or nano-sized grinding powder (diamond, silicon carbide, aluminum oxide, silicon oxide, cerium oxide, etc.) The surface of the base material is then processed by a high-precision cutting process. Abrasive sheets are used in a wide range of fields, such as optical communications, micro-motors, and hard disks. For example, the steel paper sand disc currently used in the market, the steel paper sand disc is also called a steel paper grinding disc, a high-speed grinding disc, and a grinding disc. Disc coated abrasives. It has high tensile strength and strong wear resistance. It can be installed on electric or pneumatic angle grinders to derust, deburr, paint and w...

AI Technical Summary

Problems solved by technology

[0003] At present, the sand discs used in China are generally red steel paper sand discs, that is, the base material is red steel paper, but the red steel paper sand discs will absorb moisture when used, especially in summer, which will reduce the toughness of the red steel paper sand discs and eventually lead to The sand disc cracks, so many manufacturers use the form of adding glass fiber mesh in the middle to improve the toughness of the sand disc. For example, patent CN201420209Y proposes a new steel paper base paper, which is mainly coated on the surface of the steel paper with a layer of The strong fiber layer made of cotton fiber makes the base paper have strong water absorption. Patent CN201276524Y proposes a resin laminate grinding sheet, mainly by setting an epoxy resin glass fiber laminate with 5 layers to improve deformation. , mechanical strength, impact strength, toughness and other properties, but this increased glass fiber mesh will generate a lot of dust during the grinding process, and at the same time, due to the increase in hardness, the red steel paper that is easy to splash during grinding will cause injury to the staff