PP-random – random polypropylene
PP-random is a statistical copolymer of polypropylene. It has crystalline order. Polypropylene stat-copolymer has good electrical insulation properties (25 – 35 kV/mm); though, they are worse compared to Homo and, particularly, to block-copolymers but they remain in awider range of temperature. Melting point - 170°Ñ, maximum operating temperature up to 140°Ñ.
In terms of mechanical properties stat-copolymer is transitional between Homo and block-copolymers, and it is being characterized by balance between rigidity and impact resistance (tensile yield strength – 25-35 MPa, Charpy impact viscosity with notch of some grades exceeds 10 kJ/m2).
For in-depth analysis we seldom refer only to the Foreign Trade Code (Group 3902), but we make our own more precise correlation of PP types by each grade of each producer.
Regular analytics on the PP-random market is available in the following Reports:
General data on statistical copolymer of polypropylene have a three-level structure:
Quantitative parameters of our system of information on statistical copolymer of polypropylene: