Lesson 33 · about 25 minutes
Fibres and fabrics
Cotton, wool, silk and polyester, the lined-up chains in Kevlar, and how dyes hold on.
You will learn
- What cotton, wool and silk are made of, and how hydrogen bonds hold their chains
- How drawing out polyester and nylon fibres lines up their chains
- Why Kevlar's stiff, lined-up chains make it so strong
- How dyes hold on to cotton, wool and polyester