Formula and preparation method of high-resilience grinding brush

Abstract

The invention belongs to the technical field of grinding materials and provides a formula and a preparation method of a high-resilience grinding brush. The high-resilience grinding brush is prepared from the following components in percentage by weight: 40%-50% of silica gel modified polyurethane powder, 8%-13% of diamond, 10%-20% of silicon carbide, 12%-18% of cerium oxide, 6%-13% of tin oxide, 0.3%-0.7% of a coupling agent, 0.7%-1.3% of a reinforcing agent and 5%-8% of zinc oxide. The preparation method comprises the steps of mixing, pressing molding, demolding, drying and the like.

Description

Technical field [0001] The invention relates to a formula for a high-resilience abrasive brush and a preparation method thereof, and belongs to the technical field of abrasive materials. Background technique [0002] At present, the high resilience abrasive brush used for grinding and polishing the surface of the material usually consists of 60% nylon resin particles, 12% diamond, 22% silicon carbide, 1% coupling agent and 5% toughening agent. Through extruder extrusion molding, the high resilience abrasive brush made with this formula has low plasticity, poor flexibility, poor wear resistance and heat resistance, and its softness can only be fine-tuned due to raw materials. It cannot be adjusted relative to various grinding needs. When this kind of high resilience grinding brush is used for grinding complex-shaped grinding surfaces, due to its poor softness and low plasticity, it is not easy to interact with curved parts, uneven parts, and The surface of the material of the sha...

AI Technical Summary

Problems solved by technology

[0002] At present, the high-resilience abrasive brush used for grinding and polishing the material surface is usually composed of 60% nylon resin particles, 12% diamond, 22% silicon carbide, 1% coupling agent and 5% toughening agent. Extruded through an extruder, the high-resilience abrasive brush made with this formula has low plasticity, poor softness, poor wear resistance and heat resistance, and its softness can only be fine-tuned due to raw materials. It cannot be adjusted relative to various grinding needs. When this kind of high-resilience abrasive brush is used to grind complex-shaped grinding surfaces, due to its poor softness and low plasticity, it is not easy to be in contact with curved surfaces, concave-convex parts, and The surface of the material with the shape of the hole is closely ground, and the grinding is often uneven, and the phenomenon that the dead angle cannot be ground in place