Thermosetting polymers
General Characteristics
Rigid
Resist heat and fire
Non- recyclable
Undergo chemical change when heated and moulded to make a product
Can't be melted and reshaped again
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Thermosetting plastics properties
Urea- Formaldehyde
Phenol- Formaldehyde
Epoxy Resin
Polyester Resin
Hard, brittle and good electrical insulator
Hard and heat-resistant. Easily moulded.
Hard, stiff, cheap and good electrical insulator.
Melamine- Formaldehyde
Strong and scratch resistant
Rigid, durable, corrosion-resistant and good electrical insulator
Examples of uses
Melamine- Formaldehyde
Phenol- Formaldehyde
Urea Formaldehyde
Polyester Resin
Epoxy Resin
Circuit boards and wind turbine rotor blades
Plug sockets and cupboard handles
Laminate chipboard and for plates and bowls
Kayaks. Waterproof- so used in shower stalls and garden furniture
bottle caps and snooker balls