What is the role of calcium carbonate in modification?
What is the role of calcium carbonate in modification?
The environmental protection effect of calcium carbonate
Save oil resources
Calculated based on the content of calcium carbonate filled in PE 30%, the annual output of plastic packaging bags is 3 million tons, which can save 900,000 tons of petroleum-based resin and 2.7 million tons of oil.
Giving environmental protection performance
The plastic film filled with calcium carbonate, due to the wicking effect of calcium carbonate, can promote more thorough burning and reduce the release of black smoke. It can also use the alkalinity of calcium carbonate in the film to absorb a large amount of dispersed acid gas, reduce the release of toxic smoke, and greatly reduce the probability of acid rain.
What is the role of calcium carbonate in modification?
Reduce the gloss of composite materials
The effect on the surface gloss of composite products is related to the processing method and variety of calcium carbonate. The order of the gloss of specific composite materials is wet process>dry process (light calcium carbonate>large calcite calcium carbonate>marble calcium carbonate> Small calcite calcium carbonate > dolomite calcium carbonate).
What is the role of calcium carbonate in modification?
Reduce the transparency of composite materials
The refractive index of calcium carbonate is very different from that of commonly used resins such as polyethylene and polypropylene, so the filling of calcium carbonate of regular size will affect the transparency of the film. Affect the transparency of composite products.
