Thermosetting polymers Flashcards
1
Q
Thermosetting definition
A
Substances that set permanently when heated
2
Q
Thermosetting examples
A
Polyester resin
Epoxy resin
Urea formaldehyde
Phenol formaldehyde
Melamine formaldehyde
3
Q
Urea formaldehyde
A
High tensile strength
Heat resistant
Electrical Insulator
Electrical castings/plug sockets
4
Q
Epoxy resin
A
Good strength to weight, ratio
Good electrical insulator
Heat resistant
Bonding waterproof coating is
Electronic circuit boards
5
Q
Thermoforming plastics are more____
A
Flexible and have a least, polymer chains the break apart when heated
6
Q
Thermosetting plastics, have____
A
Rigid, cross-linkEd polymer chains that set when heated and cannot be reformed