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Polymer Technology

Polymer Technology
Polyurathane can not be used for making

Adhesives
Coating material
Bottles
Mattresses & foam

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Polymer Technology
Cellulose acetate has very high film permeability among all the polymers of the order of 5000 gm/100 m². Which of the following polymers has the maximum film elongation (of the order of 100%) ?

Cellulose acetate
Polythene
Water impermeable cellophane
Teflon

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Polymer Technology
The synthetic fibres produced from __________ are known as rayon.

Lignin
Polyamides
Cellulose
Ethylene glycol

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Polymer Technology
Nylon 6 as compared to nylon 6, 6 has lower

Abrasion resistance
Hardness
Adhesion to rubber
Thermal stability

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Polymer Technology
Acrylonitrile-butadiene-styrene (ABS) copolymer, which is produced by blending styrene-acrylonitfile copolymer with butadiene based elastomer, is a/an

Engineering plastic
Thermosetting polymer
Spongy rubber
Rigid foam

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Polymer Technology
Thermoplastic resins usually

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

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