Polymer Technology Polyvinyl chloride (PVC) Softening temperature is 200°C Uses either emulsion or suspension polymerisation methods Is produced by polycondensation reaction Can be made thermosetting by adding a plasticiser Softening temperature is 200°C Uses either emulsion or suspension polymerisation methods Is produced by polycondensation reaction Can be made thermosetting by adding a plasticiser ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology The conversion of caprolactum in the above case is about __________ percent. 25 50 90 70 25 50 90 70 ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Which of the following is stretched into fibres? Bakelite Isoprene Saturated polyester Unsaturated polyester Bakelite Isoprene Saturated polyester Unsaturated polyester ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Acrilan fibres used for making cloth, carpet & blankets, which is a hard, horny & high melting polymeric material is nothing but Polyamide Polyacrylonitrile Alkyd resin Saturated polyester Polyamide Polyacrylonitrile Alkyd resin Saturated polyester ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology The process involved in converting rubber into a thin sheet or coating it on fabric is called Extrusion Calendering Mastication Vulcanisation Extrusion Calendering Mastication Vulcanisation ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Styrene butadiene rubber (SBR) as compared to natural rubber has Poorer resistance All of these Poor tensile strength Greater amount of heat build up heavy loading Poorer resistance All of these Poor tensile strength Greater amount of heat build up heavy loading ANSWER DOWNLOAD EXAMIANS APP
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