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With the development of the times, plastic sheet equipment manufacturers produce plastic sheet as well as is widely used in various industries, below, we follow the plastic sheet manufacturers to understand the density of plastic sheet as well as what are the characteristics?

The strength of plastic sheet increases with the increase of ethylene content. The Vicat softening temperature of plastic sheet is 150℃. Due to the high degree of crystallinity, this material has good surface stiffness and scratch resistance properties. Plastic sheets do not suffer from environmental stress cracking. Typically, plastic sheets are modified by adding glass fibers, metal additives or thermoplastic rubber.

The flow rate MFR of plastic sheets ranges from 1 to 40. Plastic sheet materials with low MFR have better impact characteristics but lower ductile strength. For the same MFR, the copolymer type is stronger than the homopolymer type. Due to crystallization, the shrinkage of plastic sheet is quite high, generally 1.8~2.5%. And the directional uniformity of shrinkage is much better than materials such as PE-HD. Adding 30% glass additive can reduce the shrinkage to 0.7%. Both homopolymer-type and copolymer-type plastic sheet materials have excellent resistance to moisture absorption, acid and alkali corrosion, and solubility. However, it is not resistant to aromatic hydrocarbon (e.g., benzene) solvents, chlorinated hydrocarbon (carbon tetrachloride) solvents, etc. Plastic sheeting is also not as resistant to oxidation as PE remains at high temperatures.