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Difference Between PE Vacuum Bag And PP Vacuum Bag
May 25, 2017

First, PE vacuum bag and PP vacuum bag chemical structure is different. PE, or polyethylene, is a simple structure of the polymer, by the repeated G-CH2-units connected, polyethylene is through the addition of ethylene polymerization. PP refers to polypropylene, a kind of semi crystalline thermoplastic.

Second, PE vacuum bag and PP vacuum bag characteristics are different. Polyethylene odorless, non-toxic, feel like wax, good low-temperature performance, PE vacuum bag minimum temperature can reach 100 Shan. Polyethylene chemical stability is good, can endure most acid-base erosion, at room temperature insoluble in the general solvents, water absorption is small, electrical insulation performance is good, but polyethylene thermal aging poor. Polypropylene has a high impact resistance, mechanical properties and strong, can resist a variety of organic solvents and acid-base corrosion.

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