Condensation polymerisation of __________ produces bakelite.
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Polymethyl methacrylate, which is an acrylic resin, is also called
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Scouring is a finishing operation during the manufacture of fibre, which aims at __________ of fibres.
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__________ scrap can be recycled & reutilised.
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Lavatory cisterns are normally made of
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Which of the following polymers belong to the class of formaldehyde resin?
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Dacron (or terylene) fibres as compared to nylon fibres have
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Maximum consumption of polymers is in
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Vinyl flooring is done using __________ sheets.
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All thermoplastic, thermosetting & elastic materials can be processed in a extrusion machine, however it can not be used for the production of plastic
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Which of the following is a natural polyamide fibre.
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__________ is not a polyester fibre.
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The starting material used for the manufacture of caprolactum is
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__________ polythene is most prone to stress-cracking
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Viscosity of a polymer solution or melt
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Contact lenses for eyes are made of perspex, which is nothing but
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Most commonly used rubber vulcanisation agent is
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Hot drink (e.g, tea) cups are usually made of
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90% of the caprolactum is converted to nylon-6 on its condensation polymerisation in the reactor maintained at a temperature of __________ °C.
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Most of the plastics are safe to be used upto a maximum temperature of __________ °C.
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