Polymer Technology Peptizers like aromatic mercaptans (e.g. thiophenes) are added in rubber to Protect rubber goods from attack by oxygen & ozone present in the atmosphere Increase its viscosity Reduce its viscosity to permit easier processing Reduce the time of vulcanisation and quantity of vulcanising agent Protect rubber goods from attack by oxygen & ozone present in the atmosphere Increase its viscosity Reduce its viscosity to permit easier processing Reduce the time of vulcanisation and quantity of vulcanising agent ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Polyurathane can not be used to make Coating and adhesive Thermal insulation in refrigerator Fibre reinforced plastic (FRP) Automobile cushion Coating and adhesive Thermal insulation in refrigerator Fibre reinforced plastic (FRP) Automobile cushion ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Density of high density polythene is about __________ gm/c.c. 1.18 0.99 0.95 1.05 1.18 0.99 0.95 1.05 ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Polycondensation of saturated dicarboxylic acid with polyhydric alcohol produces Alkyd resin Phenolic resin Epoxy resin Polyamide Alkyd resin Phenolic resin Epoxy resin Polyamide ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Dacron (or terylene) fibres as compared to nylon fibres have Poorer resistance to alkalis All of these Better heat & acid resistant properties Poorer dyeability Poorer resistance to alkalis All of these Better heat & acid resistant properties Poorer dyeability ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology In nylon-6, the number 6 represents the total number of Carbon atoms in the ring Nitrogen atoms in the ring Hydrogen atoms in the ring Carbon atoms in the linear polymer chain Carbon atoms in the ring Nitrogen atoms in the ring Hydrogen atoms in the ring Carbon atoms in the linear polymer chain ANSWER DOWNLOAD EXAMIANS APP
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