thermosetting plastics

Question 1

thermosetting plastics have a ____ molecular structure meaning they do not ____. they can not be ______.

Answer 1

cross link.
melt.
recycled.

Question 2

_______ _________ is resistant to scratches, water and staining. its common used include work _____ . its does not ____.

Answer 2

melamine formaldehyde (GRP when mixed with glass and fibre)
surfaces.
melt.

Question 3

___ _______ is a urine based plastic and is used to make electrical ______. it is _______ moulded.

Answer 3

urea formaldehyde.
fitting.
compression.

Question 4

_____ _____ is a glue and can glue anything to anything.

Answer 4

epoxy resin.

Question 5

______ ____ is a component part of fibre glass and is moulded in _____. is very hard and its uses are car bodies and boats.

Answer 5

polyester resin.

layers.

Question 6

____ ________ is in black only. it is _______ moulded and its use is saucepan handles.

Answer 6

phenol formaldehyde.

compression.