Plastics - general Flashcards

1
Q

What is the structure of thermoforming plastics?

A

Long chains of plastics

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
1
Q

What is the structure of thermosetting plastics?

A

Long chains cross bonded

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

What are plastics made from?

A

Fossil fuel, i.e. crude oils
Hydrocarbons
Sugars
Carbohydrates

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

What are the characteristics of a thermoforming plastic?

A

Tough
Low melting point
Weak
Soft
Recyclable

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

What are the characteristics of thermosetting plastics?

A

Strong
Durable
Hard
High melting point
More inert (unreactive)
Rigid
Non-corrosive
Brittle
Not recyclable

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

Name three thermoforming plastics.

A

Acrylic
PVC
Polyester
PET
Nylon
PP
ABS

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

Name three thermosetting plastics.

A

Epoxy resin
Melamine Formaldehyde
Urea Formaldehyde
Elastane

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

Why are thermosetting plastics not recyclable?

A

There are too many bonds to break, so it will not break down. It will burn instead. These are not sustainable plasics

How well did you know this?
1
Not at all
2
3
4
5
Perfectly