Talc, as a type of layered silicate mineral, has significant application value in the field of plastic modification due to its unique sheet-like structure and mechanical properties.

A Brief Discussion on the Influence of Calcium in Talc Powder on Plastic Applications：Talc powder is a layered silicate mineral mainly composed of magnesium silicate (3MgO · 4SiO2 · H2O). Due to its unique sheet-like structure, high rigidity, heat resistance, and chemical stability, it is widely used in the field of plastic modification. However, impurities that may exist in talc powder, such as calcium containing compounds, can significantly affect its properties.