Sponge abrasive material and preparation method thereof

Abstract

The invention discloses a sponge abrasive material and a preparation method thereof, and relates to the field of abrasive materials. The sponge abrasive material comprises the following components of,by weight, 0.999-1 part of a polyurethane elastic material, 0.001-0.01 part of color paste, 1-20 parts of hard abrasive materials and 0.02-0.08 part of a flame retardant, the hard abrasive materialsare evenly distributed between foam formed by the polyurethane elastic material and the flame retardant, the color paste has different colors, and the hard abrasive materials are one or several of steel sand, brown corundum, garnet and the like. The sponge abrasive material and the preparation method thereof have the beneficial effects that the problem that the type of the hard abrasive materialsis difficult to distinguish after the hard abrasive materials are wrapped with polyurethane sponge is avoided, according to the preparation method of the sponge abrasive material, the wrapping strength of the sponge abrasive material is improved, the service life is prolonged, meanwhile, the problem of continuous production of the sponge abrasive material is solved, the efficiency is improved, theyield is increased,, and consumption is reduced.

Description

technical field [0001] The invention mainly relates to the field of abrasive materials, in particular to a sponge abrasive and a preparation method thereof. Background technique [0002] At present, there are mainly two types of hard abrasives and soft abrasives in the domestic and foreign markets. Hard abrasives are easy to break, have large dust, and are prone to sparks, while soft abrasives have small cutting force, low cleaning efficiency, and poor cleaning effect. As a result, a sponge abrasive made of polyurethane elastomer and rigid abrasive is produced. It is widely used in the surface cleaning industry because it can absorb dust during the cleaning process and has excellent properties such as no splashing and no damage to the surrounding working surface. . [0003] However, in actual use, it is found that the existing sponge abrasives also have some problems in production and use: first, because the hard abrasives will have steel grit, brown corundum, garnet, etc.,...

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Problems solved by technology

[0003] However, in actual use, it is found that the existing sponge abrasives also have some problems in production and use: first, because the hard abrasives will have steel grit, brown corundum, garnet, etc., their performance is not exactly the same, however It is difficult to distinguish the types of internal hard abrasives after the hard abrasives are covered by polyurethane sponge; secondly, most of the hard abrasives in the production process of the existing sponge abrasives are not heated and recombined, so that the bonding strength between the hard abrasives and the polyurethane foam is relatively low. Low, the hard abrasive is easy to fall off during the crushing process, the yield is low, and it is easy to fall off during use, resulting in a small number of cycles. In the prior art, even if the hard abrasive is heated and recombined, the hard abrasive is heated by a heating tank. However, this heating method has the problems of slow heating speed, long heating time, uneven heating, production pause, and difficult realization of continuous production; in addition, the conventional continuous discharge of existing sponge abrasives in the preparation process, It needs to be cut into small pieces before it can be broken, which increases the production process, and the production efficiency and yield are low

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