Polyurethane polishing wheel and preparation method thereof

Abstract

The invention provides a polyurethane polishing wheel and a preparation method thereof. The polyurethane polishing wheel comprises a plurality of nylon fiber non-woven fabrics coated with wear-resistant slurry, the wear-resistant slurry comprises the following components in parts by weight, 100 parts of end-capped polyurethane prepolymer, 10-40 parts of chain extender, 5-15 parts of a solvent, 0.01-0.5 parts of a foaming agent, 0.01-0.5 parts of a catalyst, 0.1-0.8 parts of an antioxidant, 100-500 parts of an abrasive, 2-20 parts of a lubricant and 0.5-5 parts of toner; and the end-capped polyurethane prepolymer is selected from one or two of a polyester type end-capped polyurethane prepolymer and a polyester type end-capped polyurethane prepolymer. The polyurethane polishing wheel disclosed is compared with the polishing wheel in the same type in the market, the durability is improved by about 1 time, and the surface roughness value is reduced by about 50%.

Description

technical field

[0001] The invention relates to a polishing wheel and a preparation method thereof, in particular to a polyurethane polishing wheel and a preparation method thereof. Background technique

[0002] In recent years, polishing and grinding consumables made of polyurethane have been widely used at home and abroad. Polishing products made of polyurethane have good elasticity and toughness, and ideal cutting efficiency. Compared with other polishing materials made of epoxy resin, polyamide resin, polyester resin, and phenolic resin Grinding wheel products should be durable.

[0003] At present, there are two main forms of polishing wheel products made of polyurethane materials:

[0004] 1. The foaming grinding and polishing wheel made of foaming material is added with solvent, abrasive, catalyst, foaming agent, foam stabilizer, cooling agent, etc. The product has foaming micropores, good elasticity and toughness, and good polishing finish

[0005] 2. Polyurethane ...