Polymer Technology Plasticisers are added to synthetic plastics to All of these Develop new improved properties not present in the original resin Impart flexibility Improve workability during fabrication All of these Develop new improved properties not present in the original resin Impart flexibility Improve workability during fabrication ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Density of high density polythene is about __________ gm/c.c. 0.99 0.95 1.05 1.18 0.99 0.95 1.05 1.18 ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Which of the following polymers is used for making a non stick coating on frying pans? Bakelite Perspex PVC Teflon Bakelite Perspex PVC Teflon ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology In case of dry spinning of polymers, the polymer solution in a volatile solvent is forced through the spinnerates into a warm air chamber, where the solvent evaporates leaving behind the polymer in the filament form. Dry spinning is used for __________ fibres. Polyvinyl acetate Polythene PVC Rayon Polyvinyl acetate Polythene PVC Rayon ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Polyvinyl chloride (PVC) Is produced by polycondensation reaction Uses either emulsion or suspension polymerisation methods Can be made thermosetting by adding a plasticiser Softening temperature is 200°C Is produced by polycondensation reaction Uses either emulsion or suspension polymerisation methods Can be made thermosetting by adding a plasticiser Softening temperature is 200°C ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology __________ is normally used for the manufacture of refrigerator components and transistor parts. Polystyrene Polyester Polyurathene Polyproylene Polystyrene Polyester Polyurathene Polyproylene ANSWER DOWNLOAD EXAMIANS APP
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