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Polymer Technology

Polymer Technology
Rain coats are made of

SBR
Polyurathane
Neoprene
PVC

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Polymer Technology
Due to its excellent permeability to air/gas and oxidation resistance, the tubes of automobile tyres is made of

Bunai N
Cold SBR
Butyl rubber
Buna S

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Polymer Technology
Temperature and gage pressure maintained during the manufacture of hot SBR (styrene butediene rubber) are

50°C and 1 kgf/cm²
50°C and 3 - 4 kg/cm²
250°C and 1 kgf/cm²
250°C and 10 kgf/cm²

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Polymer Technology
Linear polymers are normally

Having extremely high softening point
Thermosplastic
Elastometric
Thermosetting

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Polymer Technology
Nylon-66 is a polyamide of

None of these
Vinyl chloride and formaldeyde
Adipic acid and methyl amine
Hexamethylene diamine and adipic acid

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Polymer Technology
Liners of bags are usually made of

Polythene
Polypropylene
Polyesters
PVC

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