Polymer Technology
Diphenylamine is added to rubber to

Valcanise it
Make it non-inflammable
Make it thermosetting
Protect it from deterioration on exposure to air

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Polymer Technology
Thermocole (expanded polystyrene) is not used for

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

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