PVC pipe according to the amount of additives, divided into soft and hard PVC pipe, soft products are flexible and tough, feel sticky, hard products hardness is higher than low-density polyethylene, and lower than polypropylene, in the inflection will appear whitening phenomenon. Stable; Not easy to be corroded by acid and alkali; Relatively resistant to heat.
Different additives can be added according to different uses, and PVC plastics can present different physical and mechanical properties. Adding an appropriate amount of plasticizer to PVC can make a variety of hard, soft and transparent products. PVC hard pipe has good tensile, bending, compression and impact resistance, and can be used as a structural material alone. PVC hose has good flexibility, elongation at break, cold resistance will increase, but brittleness, hardness, tensile strength will decrease.
