What material is PE stretch film made of?

PE stretch film is a common packaging material, which is also widely used by us. Then it needs to be waterproof, moistureproof, dustproof and breakage-proof. If you want to have these characteristics, you must choose the materials carefully. What material is it made of?

1, PE stretched film is made by extruding polypropylene particles into sheets and then stretching them in vertical and horizontal directions. Due to the orientation of stretching molecules, the transparency of polyethylene decreases to some extent with the increase of crystallinity, but increases with the increase of molecular weight. The melting point range of high-density polyethylene is 132- 135℃, while the melting point of low-density polyethylene is lower (1 12℃) and the range is wider.

2.PE stretched film is a stretched film material made of polyethylene terephthalate, which is made into thick sheets by extrusion and then stretched in two directions. It is a colorless, transparent and glossy stretched film with excellent mechanical properties, high rigidity, high hardness, high toughness, puncture resistance, friction resistance, high temperature resistance and low temperature resistance. It has good oil resistance, air tightness and fragrance retention, and is one of the commonly used barrier composite stretched film substrates.

3.PE stretched film material is made by adding high-quality tackifier, heating, extruding, casting and cooling by cooling roller. It has the advantages of strong toughness, high elasticity, tear resistance, high viscosity, thin thickness, cold resistance, heat resistance and pressure resistance. When used, it can save materials, labor and time, and is widely used in papermaking, logistics, chemical industry, plastic raw materials, building materials, food, glass and so on.

The appearance of PE stretched film has brought us a lot of convenience, so with its popularity, its quality has also begun to emerge one after another. Therefore, in order to ensure the quality of its use, we must pay attention to the selection of materials.