Pourquoi avons-nous besoin d’ajouter de la poudre de calcium aux tuyaux en PVC?

● Reducing costs:

Calcium carbonate is relatively cheap. Adding calcium powder can reduce the amount of Chlorure de polyvinyle resin used, thereby reducing material costs and improving economic benefits.

● Enhancing rigidity and hardness:

Calcium carbonate, as a filler, can improve the hardness, rigidity and dimensional stability of PVC pipes and enhance the compressive strength of pipes.

● Enhancing thermal stability:

The pH value of calcium carbonate is alkaline, which can absorb hydrogen chloride, and to a certain extent enhance the thermal stability of PVC, preventing the pipe from decomposing due to high temperature during processing.

● Improving processing performance:

Calcium carbonate helps to improve the processing fluidity of PVC pipes during the production process and improve the efficiency and effect of extrusion molding.

If you have other questions, please consult zhongtongpipe and we will provide you with solutions