types of plastics Flashcards
1
Q
how many groups of plastic are there?
A
2
2
Q
what are the groups of plastic called?
A
-thermoplastics
-thermosetting plastics
3
Q
what is a thermoplastic
A
can be reheated, allowing them to be reshaped and modules in different ways. they will try to return to their original shape if reheated. easily recycled.
4
Q
what is a thermosetting plastic?
A
can nir be reshaped by heating and can withstand higher temperatures than thermoplastics. cannot be recycled
5
Q
what are the types of thermoplastics?
A
-acrylic
-rigid polystyrene
-polyvinyl-chloride (PVC)
6
Q
what are the types of thermosetting plastics?
A
-melamine formaldehyde
-urea formaldehyde
-polyester resin
7
Q
what does PVC stand for?
A
polyvinyl-chloride
