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Polymer Technology

Polymer Technology
Flexible foam (for mattresses) are usually made of

Silicone rubber
Polyurethanes
Polyamides
PVC

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Polymer Technology
Antioxidants are added to rubber to protect it from the attack of light, heat & atmospheric ozone. Which of the following is an antioxident used in rubber?

Thiokol
Carbon
Magnesium
Alkylated diphenyl amine

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Polymer Technology
Perspex can be used as a substitute of glass. Its monomer is

DMT
Methyl methacrylate
Tetrafluroethylene
Butadiene

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Polymer Technology
Dacron (or terylene) fibres as compared to nylon fibres have

Poorer dyeability
Better heat & acid resistant properties
All of these
Poorer resistance to alkalis

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Polymer Technology
Polyurathane can not be used for making

Bottles
Adhesives
Coating material
Mattresses & foam

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Polymer Technology
Polypropylene compared to polythene is

Lighter
All of these
Stronger
Harder

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