Polymer Technology Cellulose is the main contituent of most __________ fibres. Natural Acrylic Synthetic Spandex Natural Acrylic Synthetic Spandex ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Flexible foam (for mattresses) are usually made of Polyamides Silicone rubber Polyurethanes PVC Polyamides Silicone rubber Polyurethanes PVC ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Plasticisers are high boiling liquids added to plastic polymers to impart toughness and flexibility at ordinary temperature. Which of the following is not a plasticiser? Stearic acid estors Tricresyl phosphate Esters of phthalic acid Ethylene glycol Stearic acid estors Tricresyl phosphate Esters of phthalic acid Ethylene glycol ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology The main use of butadiene is As a plasticiser for unsaturated polyester As an anti-skimming agent in paint In the manufacture of synthetic rubber None of these As a plasticiser for unsaturated polyester As an anti-skimming agent in paint In the manufacture of synthetic rubber None of these ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology The rate controlling step in the manufacture of silicone rubber is the Polymer termination step Initial hydrolysis of silicone monomer Condensation of siloxane to silicone None of these Polymer termination step Initial hydrolysis of silicone monomer Condensation of siloxane to silicone None of these ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Which of the following polymers shows the highest anti-tacking properties? Phenolic resin Epoxy resin Melamine formaldehyde resin Alkyd resin Phenolic resin Epoxy resin Melamine formaldehyde resin Alkyd resin ANSWER DOWNLOAD EXAMIANS APP