At present, the plastic pallet material that USES on the domestic market basically is polyethylene (PE) and polypropylene (PP) two kinds, because the property of raw material is different, the plastic pallet price of the same model of different material also has difference, in use-bearing capacity and use environment are not same also, the service life of pallet is not same also.
Polyethylene (PE) plastic pallets are usually made of high-strength polyethylene injection molding. Polyethylene is a thermoplastic resin made by polymerization of ethylene. The properties of polyethylene vary from variety to variety, mainly depending on the molecular structure and density.PE has general mechanical properties, low tensile strength, poor creep resistance, and good impact resistance. High-density polyethylene plastic tray toughness and impact resistance are better, but the service life of the environment is more affected. Especially in the north of the drought, low-temperature weather environment, low-temperature resistance ability is poor, long-term use brittle, fracture.
Polypropylene (PP) plastic pallet is made of polypropylene material by injection or blow molding. Polypropylene is a translucent colorless solid, odorless, and non-toxic. With a density of 0.90g/cm3, it is the lightest general-purpose plastic. Corrosion resistance, tensile strength of 30MPa, strength, rigidity, and transparency are better than polyethylene. The disadvantage is that low-temperature impact resistance is poor and easier to age, polypropylene plastic pallets than polyethylene plastic pallets with high strength, but poor service life, easy to age. Especially in the outdoor environment, easy to age.
Copolymerized polypropylene plastic tray, made of a new material copolymerized polypropylene. Polyethylene is made by polymerization with polypropylene. Copolymer polypropylene EPS30R is a new material. It has high strength, the steel is big, the toughness is good, the cold weather resistance is good, especially under low-temperature condition, and the chemical property is more stable than polyethylene, and polypropylene. Plastic products made of copolymer polypropylene have strong impact resistance, good toughness, and long service life. Copolymerized polypropylene plastic tray, especially in the north of low-temperature conditions, cold storage environment, long service life, and long-term use is not easy to deform. Because of the limitation of extraction technology, the cost of co-polymerization polypropylene is high.