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 Reduce the time of vulcanisation and quantity of vulcanising agent Reduce its viscosity to permit easier processing Increase its viscosity Protect rubber goods from attack by oxygen & ozone present in the atmosphere Reduce the time of vulcanisation and quantity of vulcanising agent Reduce its viscosity to permit easier processing Increase its viscosity ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Which of the following polymers shows the highest anti-tacking properties? Melamine formaldehyde resin Phenolic resin Alkyd resin Epoxy resin Melamine formaldehyde resin Phenolic resin Alkyd resin Epoxy resin ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Thiokol is nothing but Polyamide fibre Engineering plastic Exponded polystyrene Polysulphide rubber Polyamide fibre Engineering plastic Exponded polystyrene Polysulphide rubber ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Main constituent of natural rubber is Poly chloroprene Polystyrene Polyisoprene Polybutadiene Poly chloroprene Polystyrene Polyisoprene Polybutadiene ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Most of the fibre forming polymers are crystalline in nature, one of the exceptions being __________ which is amorphous in nature. Polyester Polyacrylonitrile Nylon Polypropylene Polyester Polyacrylonitrile Nylon Polypropylene ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Low pressure Zeigler process for the manufacture of polythene uses a catalyst which is V₂O₅ Fe Ni Aluminium triethyl combined with titanium tetrachloride V₂O₅ Fe Ni Aluminium triethyl combined with titanium tetrachloride ANSWER DOWNLOAD EXAMIANS APP
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