Question: what is the difference between polypropylene homopolymer and copolymer?
Answer: Polypropylene Copolymer. Propylene homopolymer has a high strength-to-weight ratio, and is stiffer and stronger than the copolymer. ... Polypropylene copolymer is a bit softer but has better impact strength. It's tougher and more durable than propylene homopolymer.