Folding Pallet Box Plastic Pallet Container

Folding pallet box plastic pallet container, PP is a semi-crystalline material. It is harder than PE and has a higher melting point. Since homopolymer PP is very brittle when the temperature is lower than 0℃, the PP materials of many commercial plastic turnover boxes are random copolymers with 1~4% ethylene or clamp copolymers with higher ethylene content. .Copolymer PP material has a lower thermal distortion temperature (100°C), low transparency, low gloss, and low rigidity, but the plastic container has stronger impact strength. The strength of PP increases with the increase of ethylene content. The Vicat softening temperature of PP is 150°C. Due to the high crystallinity, the surface stiffness and scratch-resistance of this material are very good. PP does not have the problem of environmental stress cracking. Usually, the PP is modified by adding glass fiber, metal additives, or thermoplastic rubber.

Folding pallet box plastic pallet container, The pallet bin flow rate MFR of PP ranges from 1 to 40. PP materials with low MFR have better impact resistance but lower elongation strength. For the same MFR material, the strength of the copolymer type is higher than that of the homopolymer type. Due to crystallization, the shrinkage rate of PP is quite high, generally 1.8~2.5%. And the direction uniformity of shrinkage is much better than that of PE-HD and other materials. Adding 30% of glass additives can reduce the shrinkage to 0.7%. Both homopolymer and copolymer PP materials have excellent moisture absorption, acid and alkali corrosion resistance, and solubility resistance. However, it has no resistance to aromatic hydrocarbon (such as benzene) solvents, chlorinated hydrocarbon (carbon tetrachloride) solvents, etc. PP does not have oxidation resistance at high temperatures like PE.

Hot Tags: folding pallet box plastic pallet container, China, manufacturer, suppliers, factory, wholesale, customized, price