大象传媒

Materials for different uses - OCR GatewayUses of polymers

Materials include glass and clay ceramics, polymers, metals and composite materials. They have different physical properties, which make them suitable for different uses.

Part of Chemistry (Single Science)Global challenges

Uses of polymers

are poor conductors of electricity and heat, but their other vary depending upon the particular polymer. For example, they can be or . They are often tough and , but some are hard and brittle.

Different polymers have different properties. This means that different polymers have different uses.

Poly(ethene) is used to make polytunnels, sheltering crops from the weather
Image caption,
Poly(ethene) is used to make polytunnels, sheltering crops from the weather

The table gives examples of polymers, their common names, and their typical properties and uses.

PolymerPropertiesUses
Poly(ethene) - 鈥榩olythene鈥Flexible, cheap, can be made into thin filmsCarrier bags, shampoo bottles, food wrap
Poly(propene) - 鈥榩olypropylene'Flexible, strong, resists shatteringBuckets, bowls, crates, ropes, carpets
Poly(chloroethene) - 'PVC鈥Tough, electrical insulator, can be made hard or flexibleInsulation for electrical wires, windows, gutters, pipes
Poly(tetrafluoroethene) - 鈥楶FTE鈥Slippery, chemically unreactiveNon-stick coatings for pans,containers for laboratory substances
PolymerPoly(ethene) - 鈥榩olythene鈥
PropertiesFlexible, cheap, can be made into thin films
UsesCarrier bags, shampoo bottles, food wrap
PolymerPoly(propene) - 鈥榩olypropylene'
PropertiesFlexible, strong, resists shattering
UsesBuckets, bowls, crates, ropes, carpets
PolymerPoly(chloroethene) - 'PVC鈥
PropertiesTough, electrical insulator, can be made hard or flexible
UsesInsulation for electrical wires, windows, gutters, pipes
PolymerPoly(tetrafluoroethene) - 鈥楶FTE鈥
PropertiesSlippery, chemically unreactive
UsesNon-stick coatings for pans,containers for laboratory substances