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 Which of the following additives are added to plastics to make it impervious to X-rays? Phthalic acid Asbestos Carborundum Barium salt Phthalic acid Asbestos Carborundum Barium salt ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology The main use of butadiene is As a plasticiser for unsaturated polyester None of these As an anti-skimming agent in paint In the manufacture of synthetic rubber As a plasticiser for unsaturated polyester None of these As an anti-skimming agent in paint In the manufacture of synthetic rubber ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology The starting material used for the manufacture of caprolactum is DMT Ethyl benzene Cyclohexane Ethylene glycol DMT Ethyl benzene Cyclohexane Ethylene glycol ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Terylene is a/an Homopolymer Poly amide Addition polymer None of these Homopolymer Poly amide Addition polymer None of these ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Identify the group in which all the polymers mentioned can be used to make fibres. Cellulose derivatives, Polyisoprene, Polyethylene Polypropylene, Poly vinyl chloride, Silicon Butadiene copolymers, Polyamides, Urea aldehyde Cellulose derivatives, Polyamides, Polyurathane Cellulose derivatives, Polyisoprene, Polyethylene Polypropylene, Poly vinyl chloride, Silicon Butadiene copolymers, Polyamides, Urea aldehyde Cellulose derivatives, Polyamides, Polyurathane ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS