The Difference Between PE And PP Vacuum Bags

- Apr 02, 2019-

Nowadays, the business is constantly developing, and the application of vacuum packaging bags is becoming wider and wider. The vacuum bag has an excellent preservation effect, especially for food. The material of the vacuum bag is generally divided into PP and PE. What is the difference between the two? next, I would like to introduce this to you:

First, different uses

Polyethylene (PE) is widely used in the manufacture of vacuum bags, plastic films, milk buckets, etc. Polypropylene (nylon) is widely used in industry, and third. The most rare polymer materials are used to make various adhesive tapes. It has made tremendous contributions to the flexible packaging industry such as food and beverage.


Second, the chemical structure is different

Polyethylene is polyethylene, first. A simple polymer containing O. A repeating CH2 unit, which is an addition of ethylene. pp refers to a semi-crystalline thermoplastic.

Third, its characteristics are different

Polyethylene is odorless, non-toxic, feels like wax, second. Good low temperature resistance, PE vacuum bag can reach a minimum temperature of 70~100 degrees. Polyethylene has good chemical stability and can withstand most acid and alkali corrosion. It is insoluble in common solvents at normal temperature, has small water absorption and good electrical insulation properties, but has poor heat resistance. Polypropylene has high impact resistance, strong mechanical properties, resistance to various organic solvents and acid-base corrosion.

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