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