There are two types of plastic pallet materials: high-density polyethylene (HDPE) and polypropylene (PP)
Plastic pallet material raw materials
Plastic tray material differences: HDPE has good low temperature resistance, PP has good impact resistance, it is recommended to use PP material at room temperature, and HDPE material is recommended to use in low temperature environments.
High density polyethylene (HDPE) is a thermoplastic resin with high crystallinity and non-polar properties. The original appearance of HDPE is milky white, with a certain degree of semi transparency in the thin section. HDPE has excellent resistance to most household and industrial chemicals. This polymer is non hygroscopic and has good waterproof properties, making it suitable for packaging purposes. HDPE has excellent electrical properties, especially high insulation dielectric strength, making it very suitable for wires and cables. Medium to high molecular weight grades have excellent impact resistance, even at room temperature and low temperatures of -40F. The unique characteristics of various grades of HDPE are the appropriate combination of four basic variables: density, molecular weight, molecular weight distribution, and additives. Different catalysts are used to produce customized special performance polymers. These variables are combined to produce HDPE grades for different purposes; Achieve the optimal balance in performance.
Polypropylene (PP) is non-toxic, odorless, has a low density, and has better strength, stiffness, hardness, and heat resistance than low-pressure polyethylene. It can be used at around 100 ℃. It has good dielectric properties and high-frequency insulation, and is not affected by humidity, but becomes brittle at low temperatures, is not wear-resistant, and is prone to aging. Suitable for producing general mechanical parts, corrosion-resistant parts, and insulation parts. Common organic solvents such as acids and bases have almost no effect on it and can be used for tableware.
2025-01-10
