What’s the difference between Pe bags and pp bags?
Plastic bags easy to carry, not afraid fell to touch, for People’s Daily life and industrial production provides a great convenience, however, plastic bags according to different material and function, the type very much.The PE plastic bags and PP plastic bags is an important part of plastic products, the difference between the two mainly includes the following several aspects.
First, the chemical structure of PE plastic bags with PP plastic bag.PE, or polyethylene, is a kind of simple structure of the polymer, by repeated – CH2 – can be connected with the unit, polyethylene is through the addition polymerization of ethylene.PP polypropylene, is a semicrystalline thermoplastic plastics.
Second, the characteristics of PE plastic bags with PP plastic bag.Polyethylene non-toxic, odourless, feel like wax, good low temperature resistance, PE plastic bag the lowest temperature can reach to 70 ~ 100 ℃.Polyethylene chemistry stability is good, can endure most of the acid and alkali erosion, room temperature does not dissolve in solvents, small water imbibition, good electrical insulating properties, but poor polyethylene heat aging.Polypropylene has a high resistance to impact, mechanical properties of strong, resistant to many kinds of organic solvent and acid and alkali corrosion.
Third, the application range of the PE plastic bag in PP plastic bag.Polyethylene is widely used in the manufacture of plastic bags, plastic film, milk bucket, etc.Application of polypropylene in industry more extensive, is one of the very common polymer materials, are often used in the manufacture of all kinds of adhesive tape, for the food, beverage and other flexible packaging industry made a large contribution.