PLASTIC STONE COMPOSITE

摘要

A plastic stone composite comprising PVC and calcium carbonate to provide desired physical characteristics of both plastics and natural stones is disclosed. The plastic stone composite can be made of PVC having low molecular weight grade with K value less than 60, calcium carbonate powder characterized by particle sizes smaller than 400 mesh, and more than one additive. For example, the additives can include calcium zinc stabilizer, chlorinated polyethylene, polyethylene wax, stearic acid plasticizer, and acrylic processing aid.

主权项

1. A plastic stone composite, the composite comprising:
about 30-50 parts by weight of PVC (polyvinyl chloride) having low molecular weight grade, wherein K value of the PVC having low molecular weight grade is less than 60; about 50-70 parts by weight of calcium carbonate powder characterized by particle sizes smaller than 400 mesh; and about 7.5-10.4 parts by weight of more than one additives.