Thermosetting polymers Flashcards

1
Q

Thermosetting definition

A

Substances that set permanently when heated

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2
Q

Thermosetting examples

A

Polyester resin
Epoxy resin
Urea formaldehyde
Phenol formaldehyde
Melamine formaldehyde

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3
Q

Urea formaldehyde

A

High tensile strength
Heat resistant
Electrical Insulator
Electrical castings/plug sockets

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4
Q

Epoxy resin

A

Good strength to weight, ratio
Good electrical insulator
Heat resistant
Bonding waterproof coating is
Electronic circuit boards

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5
Q

Thermoforming plastics are more____

A

Flexible and have a least, polymer chains the break apart when heated

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6
Q

Thermosetting plastics, have____

A

Rigid, cross-linkEd polymer chains that set when heated and cannot be reformed

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