PP physical properties: non-toxic, odorless, tasteless, milky white, high crystalline polymer with a relative molecular weight of about 80000-150000. Small density: 0.89-0.91g / cm3, it is one of the lightest varieties in plastics. Strong hydrophobicity: the water absorption rate in water for 24h is only 0.01%. Good formability.
Mechanical properties PP has high crystallinity and regular structure, so it has excellent mechanical properties. The most outstanding performance is bending fatigue resistance.