Elastic grinding material for sandblasting treatment

Abstract

The invention discloses an elastic grinding material for sandblasting treatment. The elastic grinding material is characterized by comprising a rigid grinding material and elastic foam, wherein the elastic foam is coated on the outer part of the rigid grinding material and is generated by a reaction of a polyisocyanate component and a hydroxyl compound and/or an amino compound component; the mass ratio of the rigid grinding material to the elastic foam is from 3:1 to 12:1; the mass ratio of the polyisocyanate component to the hydroxyl compound and/or the amino compound component is from 0.1:99.9 to 99.9:0.1; the hydroxyl compound and/or the amino compound component also comprises other auxiliary agents and pigment filler; and the granularity of the crushed elastic grinding material is 2 to 40 meshes. The elastic grinding material has the advantages of better elasticity, capacity of buffering impact of the grinding material on the surface of a base material, improvement on surface cleanliness, reduction in noise and dust pollution, recyclability, obvious economic benefit and environmental benefit and capacity of being used in closed spaces and environments with severe requirement on environmental and noise pollution control.

Description

Technical field [0001] The present invention relates to an abrasive for sandblasting, in particular, it is composed of a rigid abrasive and an elastic foam formed by the reaction of polyisocyanate, hydroxyl compound and / or amino compound and auxiliary agent coated on the outside Elastic abrasive. Background technique [0002] Sand blasting is widely used in metal rust removal and concrete surface treatment. The existing process uses rigid abrasives such as steel grit or steel jade, which is sprayed to the surface to be treated by compressed air to obtain the required cleanliness or roughness. Rigid abrasives produce serious dust and noise during the sandblasting process, which not only pollutes the environment, but also causes large abrasive losses. Although people have successively invented substrate treatment methods such as wet sandblasting, water sandblasting, rotating wheel mechanical sandblasting, and vacuum mechanical sandblasting, the above methods have not solved the fu...

AI Technical Summary

Problems solved by technology

Rigid abrasives produce serious dust and noise during the sandblasting process, which not only pollutes the environment, but also causes a large loss of abrasives

Although people have successively invented substrate treatment methods such as wet sandblasting, water blasting, rotary wheel mechanical blasting, and vacuum mechanical blasting, the above methods have not solved the fundamental problem, and have also caused damp substrates, complicated equipment, and cooling. New problems such as water pollution