Chemical Engineering :: Polymer Technology
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Synthetic rubber
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Melamine formaldehyde resin which has a very high anti tacking properties, is not used for the
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In a co-polymer, the repeating units contain two different monomers. Which of the following is a copolymer ?
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Cation exchange resins used in water treatment is made from __________ resin.
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Size range of polymer molecules varies from __________ metre.
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Which of the following is generally not drawn into fibre ?
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Condensation polymerisation of caprolac-tum is carried out in the reactor maintained at a temperature of __________ °C for producing nylon-6.
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Which of the following is not a natural polymer ?
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In case of wet spinning of polymers, the polymer solution is forced through spinnerates into, a coagulating bath to give a filament form. Wet spinning is not used in case of the __________ fibres.
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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.