1
Q
what are the natural polymers
A
cotton, linen, hemp, jute, silk, wool
2
Q
properties/uses of cotton
A
- absorbent, strong, cool to wear
- clothing, sewing and knitting threads
3
Q
properties/uses of linen
A
- cool to wear, has a natural appearance, handles well
- lightweight summer clothing, table cloths
4
Q
properties/uses of hemp
A
- absorbent, naturally lustrous
- carpets and rugs
5
Q
properties/uses of jute
A
- very absorbent, high tensile strength, anti static
- bags, yarn and twine
6
Q
properties/uses of silk
A
- comfortable to wear, has a natural sheen
- luxury clothing
7
Q
properties/uses of wool
A
- warm, crease resistant
- warmer outer clothing, knitwear, coats
8
Q
what are the manufactured polymers
A
polyester, nylon, polypropylene, acrylic, elastane, aramid fibres, nomex
9
Q
properties/uses of polyester
A
- strong when wet and dry, thermoforming
- versatile
10
Q
what property do most synthetic polymers share
A
poor absorbency
11
Q
properties/uses of nylon
A
- strong and hard wearing, resistant to chemicals
- clothing, rucksacks
12
Q
properties/uses of polypropylene
A
- thermoforming with low MP, chemical resistant
- engineered for specific uses
13
Q
properties/uses of acrylic
A
- strong except when wet, good insulator
- fake fur products
14
Q
properties/uses of elastane
A
- very elastic and stretchy, lightweight
- swimwear and sportswear
15
Q
properties/uses of aramid fibres (kevlar)
A
- engineered for strength and heat resistance, tear resistant
- flames resistant clothing, body amour
16
Q
properties/uses of nomex
A
- flames proof, tough, flexible
- often combined with kevlar to create flexible, lightweight, tear and flames and heat resistant material
