Polymer Technology
Thermocole (expanded polystyrene) is not used for

Low temperature thermal insulation as in refrigerator and air conditioners
Accoustic control and ceiling for building
High temperature thermal insulation in furnaces
Packing of delicate electronic gadgets

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Polymer Technology
Dacron is a

Thermosetting material
Condensation polymerisation product of hexamethylene diamine and adipic acid
Condensation polymerisation product of dimethyl terephthalate (DMT) and ethylene glycol
None of these

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