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Polymer Technology

Polymer Technology
Liners of bags are usually made of

PVC
Polyesters
Polythene
Polypropylene

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Polymer Technology
Typical solvent polymerisation reaction conditions for the production of high density polythene by Zeigler process is

7 kgf/cm² and 70 °C
1000 kgf/cm² and 100°C
7 kgf/cm² and 700°C
1 kgf/cm² (gage) and 70°C

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Polymer Technology
Thermocole is a spongy, porous, rigid or flexible foamed plastic, obtained by blowing gas/air through molten

Polyurathane
Saturated polyester
Either B or C
Polystyrene

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Polymer Technology
Main constituent of cotton fibre is

Gelatine
Starch
Lignin
Cellulose

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Polymer Technology
The starting material used for the manufacture of caprolactum is

Ethyl benzene
Cyclohexane
DMT
Ethylene glycol

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Polymer Technology
Bakelite (phenol-formaldehyde) resin can not be used as

Glass reinforced plastics
Decorative laminates
Electrical insulation
Decorative paint

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