What is the difference and application of Haicheng talc powder and light calcium powder and heavy calcium powder?

Both talc and calcium carbonate are used for filling. The main purposes are: 1. To increase dimensional stability (that is, to reduce shrinkage); 2. To increase the stiffness of the material; 3. To increase the heat resistance of the material; 4. There are several aspects such as material cost, but it also has its defects: 1, increased density, 2, poor use, reduced impact toughness, and 3, material gloss has decreased.

Talcum powder has the same particle size as calcium carbonate. Generally it is 300 mesh, 600 mesh, 800 mesh, 1250 mesh and 2500 mesh. Of course, there are finer ones. Generally, 800 mesh and 1250 mesh can be selected in plastic. Two, which can make the performance / price ratio high.