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Polymer Technology

Polymer Technology
Buna-S is also called

Polyurathane
SBR
Bakelite
Teflon

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Polymer Technology
Styrene butadiene rubber (SBR) is never used for making

Soles of shoes
Gaskets
Coated fabrics
Front wheel tyres of aeroplanes (i.e., heavy duty tyres)

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Polymer Technology
Which of the following is a natural polyamide fibre.

Cotton
None of these
Silk
Wool

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

Dyeing/colouring
Detergent solution washing
Improving the stretchability
Glycol soaking

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Polymer Technology
Orion is

A copolymer
Obtained by polymerising vinyl cyanide
A condensation polymer
All of these

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Polymer Technology
Alkyd resin e.g., glyptal resin formed by phthalic anhydride and glycerene is not used

For film forming materials
For surface coating of automobiles & air crafts
As plasticiser for PVC & nitrocellulose
For fibre making

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