Polymer Technology MCQs

dacron

teflon

bakelite

celluloid

hexamethylene diamine and adipic acid.

adipic acid and methyl amine.

vinyl chloride and formaldeyde.

none of these.

Melamine resins

Teflon

Dacron

None of these

deforms, if stretched to double of its original dimension.

is brittle at low temperature

is softer at higher temperature.

is highly permeable to air & water and is readily attacked by chemicals & atmospheric gases.