介绍了在VC悬浮聚合中添加碳酸钙填料和热稳定剂，合成可直接用于加工成型的PVC专用粉料的开发工作。

By adding calcium carbonate filler and thermal stabilizer in the VC polymerization processing, PVC special-use resins ready for processing were synthesis.

youdao

重质碳酸钙是应用广泛的矿物填料。

Ground calcium carbonate is one of the most important mineral fillers.

youdao

本论文从实验得到以下主要结论：1、碳酸钙、高岭土和淀粉填料对聚乙烯微孔薄膜性能影响很大。

It can draw the following conclusions form this experiment: 1. Calcium carbonate, kaolin clay and starch of filling have greatly influence on properties of PE film.

youdao