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Polymer Technology

Polymer Technology
Polyurathane can not be used for making

Mattresses & foam
Adhesives
Coating material
Bottles

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Polymer Technology
Nylon-6 as compared to nylon-66 is

None of these
Having higher melting point
Harder
More abrasion resistant

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Polymer Technology
Melt spinning of polymers involves the forcing of polymer melt through spinnerettes (fine holes) into an atmosphere kept at a temperature lower than the melting point of the polymer, which causes the fine diameter polymer melt to harden into filaments. Melt spinning is not used in case of the __________ fibres.

Polyester
Polypropylene
Nylon 6:6
Acrylic

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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?

Alkylated diphenyl amine
Magnesium
Carbon
Thiokol

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

Electrical insulation
Glass reinforced plastics
Decorative laminates
Decorative paint

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Polymer Technology
Thiokol is nothing but

Polyamide fibre
Polysulphide rubber
Exponded polystyrene
Engineering plastic

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