Cosmetics packaging materials PP plastics is introduced

PP for crystalline polymer, commonly used in the plastic PP the lightest, density is only 0. 91g/cm3（ Smaller than water) 。 General plastic, PP had better heat resistance, the thermal deformation temperature is 80 - 100 ℃, can in boiling water. PP has good resistance to stress cracking resistance, high bending fatigue life, commonly known as the 'hundred fold glue'.

PP is propylene polymerization and obtained a thermoplastic resin. Sorted by methyl position is divided into isotactic polypropylene, atactic polypropylene and three kinds of syndiotactic polypropylene, PP comprehensive performance is better than that of PE material. PP products light weight, good toughness, good chemical resistance. PP disadvantages: low dimensional accuracy, insufficient rigidity, poor weather resistance, easy to produce 'copper pollution', it has the shrinkage phenomenon, after demoulding, easy to aging, crisp, easy to deformation.

PP plastics is a typical daily, can through extensive processing processing, such as injection molding, extrusion molding, foam molding and so on. PP material used in cosmetics packaging material, mainly made of PP material is given priority to, such as plastic bottle, bottle, cosmetic bottles.