DP Chemistry (last assessment 2024)
Question 20N.3.hl.TZ0.3b(i)
| Date | November 2020 | Marks available | [Maximum mark: 1] | Reference code | 20N.3.hl.TZ0.3b(i) |
| Level | hl | Paper | 3 | Time zone | TZ0 |
| Command term | Suggest | Question number | b(i) | Adapted from | N/A |
b(i).
[Maximum mark: 1]
20N.3.hl.TZ0.3b(i)
Carbon fibre reinforced plastic (CFRP) is a useful composite. Epoxy is a thermoset polymer that is used as a binding polymer when making CFRP.
(b(i))
Thermoplastic composites are increasingly replacing thermosets.
Suggest one advantage of thermoplastic polymers over thermosets.
[1]
Markscheme
can be recycled
OR
can be reformed when hot
OR
high impact/chemical/abrasion resistance ✔
Examiners report
This was well answered and most stated that one advantage of thermoplastic polymers over thermosets is that they can be recycled.
