When used as filler, what will the effect of calcium carbonate be in plastics?Please cite the source of your answers. Thanks! :)
The first link below is an excellent tutorial on fillers in plastics. CaCO3 filler is used to reduce cost and to impart structural rigidity to plastics. It is used in both thermosetting resins like polyesters and thermosetting resins like polypropylene. CaCO3 does not impart a significant amount of strength to the plastic, like happens with fiberglass and carbon fiber, but its effect on the plastic allows the manufacturer to make products with some improvement in properties like compression. Most mineral fillers like CaCO3 result in a reduction in the tensile strength of the plastic. Hope this is helpful to you. JIL HIR
