Polymer Technology Phosphates (e.g., triceresyl, tributyl, tetrabutyl, tripheyl etc.) are added to polymers to act as Hardeners Anti-shrinkage agents Transparency improver Plasticisers Hardeners Anti-shrinkage agents Transparency improver Plasticisers ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Bakelite is An inorganic polymer Same as polytetra flouro ethylene (PTFE) Same as thermoset phenol formaldehyde Not a polymer An inorganic polymer Same as polytetra flouro ethylene (PTFE) Same as thermoset phenol formaldehyde Not a polymer ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Polyvinyl chloride (PVC) 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 Is produced by polycondensation reaction Uses either emulsion or suspension polymerisation methods ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Thermosplastic materials None of these Are solvent insoluble Are heavily branched molecules Do not soften on application of heat None of these Are solvent insoluble Are heavily branched molecules Do not soften on application of heat ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Buna-N is also called Butyl rubber Thiokol Neoprene Nitrile rubber Butyl rubber Thiokol Neoprene Nitrile rubber ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Which of the following is not a natural fibre? Cotton Wool Viscose rayon Silk Cotton Wool Viscose rayon Silk ANSWER DOWNLOAD EXAMIANS APP
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