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Polymer Technology

Polymer Technology
Paper like thin plastic articles can be produced by

Blow moulding
Injection moulding
Vacuum thermo forming
None of these

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Polymer Technology
Glyptal used in the manufacture of paints & lacquers is a __________ polymer.

Polyacrylonitrile
Polystyrene
Polyester
Polyamide

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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
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.

Nylon 6:6
Polypropylene
Acrylic
Polyester

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Polymer Technology
Polycondensation reaction of polymerisation

Produces only thermoplastic material
Does not need any catalyst
Does not produce linear polymers
Produces epoxy polymers

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Polymer Technology
Bristles of tooth brushes are made of

Polystyrene
Nylon-6
Nylon-66
PVC

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