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Polymer Technology

Polymer Technology
__________ is a natural fibre.

Dacron
None of these
Cellulose
Nylon-6

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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%) ?

Polythene
Cellulose acetate
Teflon
Water impermeable cellophane

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Polymer Technology
Ion exchange resins are made of

Sulphonated bakelite
Teflon
Lucite
Polystyrene

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Polymer Technology
Polycaprolactum is also known as

Nylon-66
Teflon
Nylon-6
SBR

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Polymer Technology
Plasticisers are added to synthetic plastics to

Improve workability during fabrication
Impart flexibility
All of these
Develop new improved properties not present in the original resin

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Polymer Technology
Low pressure Zeigler process of polythene manufacture

Achieves an yield of 95-98% based on ethylene
Produces very low density polythene
Does not use any catalyst for polymerisation
Employs a pressure of 30 kgf/cm²

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