1, the shape of talc powder is flaky, so it has higher stiffness, dimensional stability and heat resistance temperature, and the enhancement effect is good.

2, calcium carbonate is generally granular, so its stiffness and other aspects are not as good as talc powder, but its price is lower, and the whiteness is high, and at the same time has a small impact on plastic toughness.

3, talcum powder has a nucleation effect on polypropylene, and calcium carbonate has no obvious effect in this regard.

4, calcium carbonate can generally be divided into light calcium carbonate and heavy calcium carbonate, and talc powder does not have this distinction, talc powder is from the natural mineral grinding out.