Polymers Flashcards
1
Q
What are examples of thermoforming polymers
A
- Polyvinyl chloride (pvc)
- plystyrene ( rigid and expanded )
- ABS
- PET
- polyurethane
2
Q
What are the forms, properties and uses of polyvinyl chloride (pvc)
A
- It comes in sheet from
- can be used for vacuum forming or injection moulding
- chemical and water resistant and
- used in blister packs
3
Q
what are the forms, properties and uses of polystyrene
A
- rigid polystyrene comes in granule and sheet form high impact polystyrene is an example of this - expanded comes in sheets and balls good insulator and impact resistant used to stuff toys
4
Q
What are the forms properties and uses of ABS
A
- available in sheet and granule form
- used in car bumpers
- lightweight, durable and impact resistant
5
Q
What are the forms properties and uses of PET
A
- available in sheet granule
- it is lightweight and strong
- used in food packaging
6
Q
what are the forms properties and uses of polyurethane
A
- available in sheet granule and foam
- flexible, hardwearing and durable
- used in carrier bags
7
Q
who are the main suppliers of crude oil
A
- saudi arabia
- USA
- Russia
8
Q
What are the 6 R’s
A
- reduce - can the amount of polymer used be reduced?
- recycle - can the polymer be recycled
- reuse - can the polymer be reused instead of discarded
- rethink - is there another way the product can be made?
- refuse - can you use another material other than a polymer?
- repair - can the product be repaired instead of thrown out