Stone-plastic wallboard

Abstract

The invention provides a stone-plastic wallboard which comprises 50-80 parts of calcite powder, 40-60 parts of PVC (Polyvinyl Chloride) resin, 20-30 parts of chloroprene rubber, 33-43 parts of butadiene-acrylonitrile rubber, 3-5 parts of conductive fibers, 30-50 parts of marble powder, 4-8 parts of processing aids, 4-8 parts of a modifier, 1-3 parts of a stabilizer, 2-5 parts of a foaming agent, 1-5 parts of a lubricating agent, 90-100 parts of semi-hydrated gypsum, 1-3 parts of bamboo charcoal fibers, 2-5 parts of methyl cellulose, 3-7 parts of ethyl cellulose, 20-30 parts of a stone-like coating and 3-6 parts of polyvinyl alcohol. According to the stone-plastic wallboard disclosed by the invention, the calcite powder, the marble powder, the semi-hydrated gypsum, the PVC resin, chloroprene rubber and the butadiene-acrylonitrile rubber are mixed, so that the prepared stone-plastic wallboard has excellent mechanical strength, tensile strength and crack resistance, the activity of the semi-hydrated gypsum is improved, the content of soluble impurities in the semi-hydrated gypsum is reduced, a pulverization phenomenon on the surface of a gypsum base material is further avoided, and the strength and toughness of the semi-hydrated gypsum base material are improved, so that the gypsum is applied to the field of building materials in a wide range, the inventory of phosphogypsum in the natural world is reduced, and the environmental pollution is reduced.

Description

technical field [0001] The invention relates to the technical field of building wallboards, in particular to a stone-plastic wallboard. Background technique [0002] At present, the traditional red brick is still used as the main wall structure in the construction industry, but due to policy reasons, the red brick will withdraw from the construction market. Therefore, new wall material technologies continue to emerge to meet the new needs of the construction market. At present, in addition to clay bricks, there are also industrial waste slag block bricks, silicate and sulphoaluminate cement wallboards, etc. for building wall materials. The traditional clay solid brick, because of its serious waste of land resources, serious energy consumption, and serious pollution of the environment, at the same time, the construction project is not energy-saving, the construction labor intensity is high, the construction cost is high, the speed is slow, and the construction index achieved ...

AI Technical Summary

Problems solved by technology

But we can't help but see that most of the current new wall materials still have many deficiencies and defects, such as some wallboards have a relatively large dry shrinkage value, serious cracks during product installation, etc.