What are the differences between plastic nozzle covers made of pp, pe, and pvc?

PP, PEand PVC are common plastic materials, and they present their own characteristics when manufacturing plastic nozzle caps. In terms of physical properties, polypropylene has high wear resistance and impact resistance, and is suitable for applications requiring mechanical strength and wear resistance; polyethylene is relatively soft, has good flexibility and impact resistance, and is suitable for applications that require mechanical strength and wear resistance. Applications with higher performance requirements; PVC is usually harder and has better chemical stability, which has advantages in some corrosion-resistant applications.

From the perspective of chemical properties, polypropylene has good corrosion resistance to many chemicals, but may be affected in strong alkaline environments; polyethylene is stable under general chemical conditions, but is resistant to certain organic solvents and oxidizing agents. Substances are relatively sensitive; PVC has good corrosion resistance to most chemical substances and is suitable for some occasions requiring corrosion resistance.

PP plastic nozzle covers are commonly used in industrial applications requiring mechanical strength due to their hardness and wear resistance; PE plastic nozzle covers are commonly used in household products and light industrial applications due to their flexibility and impact resistance; and PVC plastic nozzle covers are commonly used due to their Hardness and chemical stability, suitable for environments such as the chemical industry that require corrosion resistance.