More and more customers choose the vacuum bags on the market as a packaging project, including vacuum bag PE and PP vacuum bag is an important part of the vacuum bag products, for People's Daily life and industrial production provides a great convenience.
Today we are going to see what they have in common.
Where is the difference?
Different purposes: polyethylene (
Widely used in the manufacture of vacuum bag, plastic film, milk and other products.
Widely used in industry, the third.
One of the most rare polymer materials were used to make all kinds of adhesive tape, for the food, beverage and other flexible packaging industry made great contributions.
The chemical structure of different: PE is PE, first.
Simple polymer containing O a repetitive CH2 unit, it is made of vinyl bonus.
Pp is semicrystalline thermoplastic plastics.
Its different characteristics: polyethylene is odorless, non-toxic, like wax, the second.
Good low temperature resistance, PE vacuum bag the lowest temperature can reach 70 ~ 100 degrees.
Polyethylene chemistry stability is good, can bear most of the acid and alkali erosion, room temperature does not dissolve in solvents, water quantity is small, electric insulation performance is good, but the polyethylene heat resistance is poor.
Polypropylene with high impact, strong mechanical properties, resistance to all kinds of organic solvent and acid and alkali corrosion.
Food packaging manufacturer 】