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Polymer Technology

Polymer Technology
Dacron is a/an

Polyester
Polyamide
Inorganic polymer
Unsaturated polyester

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Polymer Technology
Scouring is a finishing operation during the manufacture of fibre, which aims at __________ of fibres.

Improving the stretchability
Dyeing/colouring
Detergent solution washing
Glycol soaking

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Polymer Technology
Thermoplastic resins usually

Can not be reclaimed from waste
Less brittle than thermosetting resins
Permanent setting resins
Remain hard as long as they are hot

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Polymer Technology
The monomer of natural rubber is

Isoprene
2 methyl-1-propene
Both B and C
DMT

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Polymer Technology
Rain coats are made of

Polyurathane
Neoprene
SBR
PVC

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Polymer Technology
Diphenylamine is added to rubber to

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

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