Polymer Technology Peptizers like aromatic mercaptans (e.g. thiophenes) are added in rubber to Reduce its viscosity to permit easier processing Increase its viscosity Reduce the time of vulcanisation and quantity of vulcanising agent Protect rubber goods from attack by oxygen & ozone present in the atmosphere Reduce its viscosity to permit easier processing Increase its viscosity Reduce the time of vulcanisation and quantity of vulcanising agent Protect rubber goods from attack by oxygen & ozone present in the atmosphere ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Epoxy resins (i.e., epoxide polymers) Contain an epoxy group ( ##### ) at the ends of the polymer Are cross-linked polymers only Use emulsion polymerisation methods Are made by addition polymerisation reaction only Contain an epoxy group ( ##### ) at the ends of the polymer Are cross-linked polymers only Use emulsion polymerisation methods Are made by addition polymerisation reaction only ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology The generic chemical name for the class of polymers which are commerically known as nylons is Polyurathane Polyamide Polyacrylate Polyolefins Polyurathane Polyamide Polyacrylate Polyolefins ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Crystallisation of polymers is an undesirable property. Crystallisation of celluloid is prevented by adding Nitro cellulose None of these Camphor Glycerol Nitro cellulose None of these Camphor Glycerol ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Polyurathane can not be used to make Coating and adhesive Thermal insulation in refrigerator Automobile cushion Fibre reinforced plastic (FRP) Coating and adhesive Thermal insulation in refrigerator Automobile cushion Fibre reinforced plastic (FRP) ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Nylon-66 is a polyamide of None of these Hexamethylene diamine and adipic acid Vinyl chloride and formaldeyde Adipic acid and methyl amine None of these Hexamethylene diamine and adipic acid Vinyl chloride and formaldeyde Adipic acid and methyl amine ANSWER DOWNLOAD EXAMIANS APP
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