What use of poly plastic？

(PE) - referred to as "PE English name: Polyethylene Polyethylene (PE) is one of the five synthetic resin, is China's largest synthetic resin production, imports of varieties.Polyethylene is mainly divided into linear low density polyethylene (LLDPE), low density polyethylene (LDPE) and high density polyethylene (HDPE).

The material of poly plastic products

Corrosion resistance, good electrical insulation (especially high frequency insulation), chloride, irradiation modification, glass fiber reinforced. The melting point of low pressure polyethylene, rigidity, hardness and high strength, small water imbibition, good electric properties and radiation resistance;High pressure polyethylene has good softness, elongation, impact strength and permeability.Super high molecular weight polyethylene has high impact strength, fatigue resistance and wear resistance.High pressure polyethylene suitable for film production;Ultra - high molecular weight polyethylene is suitable for making shock - reducing, wear - resistant and drive parts.

Formability of poly plastic material

Small crystal material, moisture absorption, need not to fully dry, good liquidity, liquidity is sensitive to pressure and molding time with high-pressure injection, uniform temperature, filling speed, pressure maintaining full. Should not be in direct gate, to prevent uneven contraction, the internal stress increased. Pay attention to choose the gate location, to prevent shrinkage and distortion.

2. Large shrinkage range and shrinkage value, obvious directionality, easy deformation and warping.

3. The heating time should not be too long, otherwise decomposition and burns will occur.

4. When soft plastic parts have shallow side grooves, they can be forced out of the mold.

5. Melt cracking may occur, so contact with organic solvent is not advisable to prevent cracking.

High pressure low density polyethylene (LDPE), high density polyethylene (HDPE) and linear low density polyethylene (LLDPE).Film is its main processing products, followed by sheet and coating, bottles, cans, barrels and other hollow containers and other injection and blow products, pipe materials and wire, cable insulation and sheath.poly plastic application are mainly used in packaging, agriculture and transportation.