Why is polypropylene is a thermoplastic? please explain
nsbrando Member Joined Jun 19, 2012 Messages 87 Gender Male HSC 2013 Nov 2, 2012 #1 Why is polypropylene is a thermoplastic? please explain
H helium New Member Joined Aug 5, 2011 Messages 13 Gender Undisclosed HSC N/A Nov 2, 2012 #2 I thought we don't need to know about polypropylene? Just polyethylene, polystyrene & polyvinylchloride?
I thought we don't need to know about polypropylene? Just polyethylene, polystyrene & polyvinylchloride?
nsbrando Member Joined Jun 19, 2012 Messages 87 Gender Male HSC 2013 Nov 2, 2012 #3 this was in my assignment
