Problems and exercisesClothing and Textiles
1. Natural or synthetic?
Classify these fibres and say what kind of polymer they are: cotton, silk, nylon, polyester (PET).
2. Cotton or polyester
Why does a cotton T-shirt absorb sweat much better than a polyester one?
3. Water-repellent fabrics
Why do water drops not wet a fabric coated with a fluorinated polymer?