| Features of PP plastic faucet PP is a semi-crystalline material. It is harder than PE and has a higher melting point. Since the homopolymer PP is brittle at temperatures above 0 ° C, many commercially available PP materials are random copolymers with an ethylene content of 1-4% or block copolymers with a high ethylene content. Copolymer PP material has low heat distortion temperature (100C), low transparency, low gloss and low stiffness, but higher impact strength. The strength of PP increases with increasing ethylene content. The Vicat softening temperature of PP is 150 ° C. Due to the high degree of crystallinity, this material has very good surface rigidity and scratch resistance. PP does not have the problem of environmental stress cracking. Generally, PP is modified by adding glass fiber, metal additives or thermoplastic rubber. PP flow MFR range is 1 ~ 40. PP materials with low MFR have better impact resistance, but lower strength. For the same MFR material, the copolymer type has higher strength than the homopolymer type. Due to crystallization, the shrinkage of PP is very high, usually 1.8% to 2.5%. The uniformity of shrinkage direction is much better than PE-HD and other materials. Adding 30% glass additives can reduce the shrinkage to 0.7%. Homopolymer and copolymer PP materials have excellent resistance to moisture absorption, acid and alkali corrosion resistance and resistance to dissolution. However, it cannot resist aromatic hydrocarbons, such as benzene solvents, chlorinated hydrocarbon (carbon tetrachloride) solvents, etc. Use of PP faucet: high quality and low price, non-toxic and tasteless, environmental protection, waterproof, product appearance, quality, sanitary, waterproof, durable, practical, environmentally friendly Odin Mould(atplas) is a professional manufacture of gas-assisted injection mold, daily-use plastics mould, SMC/BMC mould, thin-wall injection mold, injection molding OEM,we have cultivated an excellent team and established a comprehensive system to meet different Different needs of customers. |
