Calcium carbonate is alkaline, basically insoluble in water, soluble in hydrochloric acid (reacting with hydrochloric acid). It is one of the common substances on the earth and exists in aragonite, calcite, chalk, limestone, marble, travertine and other rocks. It is also the main component of some animal bones or shells. Calcium carbonate is also an important building material, which is widely used in industry.
Calcium carbonate is widely used as filling resin, such as polyvinyl chloride (PVC), polyethylene (PE), polypropylene (PP) and acrylonitrile butadiene styrene (ABS). Adding calcium carbonate has a certain effect on improving some properties of plastic products and expanding its application scope. In plastic processing, they can reduce resin shrinkage, improve rheological properties and control viscosity.
Application in construction industry
It can be used as raw material for plastic factory, rubber factory, paint factory and waterproof material factory, and can also be used for painting internal and external walls. It has the characteristics of high purity, high whiteness, non-toxic, tasteless, low fine oil quality and low hardness. Marble is also an important building material, which can be used in construction.