Perché è necessario aggiungere polvere di calcio ai tubi in PVC?

● Reducing costs:

Calcium carbonate is relatively cheap. Adding calcium powder can reduce the amount of PVC 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.

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