Polymer Technology Vulcanisation of rubber does not increase its Elasticity & water solubility Weight & strength Oxidation resistance Softness Elasticity & water solubility Weight & strength Oxidation resistance Softness ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Temperature and gage pressure maintained during the manufacture of hot SBR (styrene butediene rubber) are 50°C and 1 kgf/cm² 50°C and 3 - 4 kg/cm² 250°C and 1 kgf/cm² 250°C and 10 kgf/cm² 50°C and 1 kgf/cm² 50°C and 3 - 4 kg/cm² 250°C and 1 kgf/cm² 250°C and 10 kgf/cm² ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology In condensation polymerisation as compared to addition polymerisation The monomers contain two functional groups No co-product is lost Generally only one monomer is involved The monomers are unsaturated compounds The monomers contain two functional groups No co-product is lost Generally only one monomer is involved The monomers are unsaturated compounds ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Polycondensation of saturated dicarboxylic acid with polyhydric alcohol produces Polyamide Phenolic resin Epoxy resin Alkyd resin Polyamide Phenolic resin Epoxy resin Alkyd resin ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Melt spinning of polymers involves the forcing of polymer melt through spinnerettes (fine holes) into an atmosphere kept at a temperature lower than the melting point of the polymer, which causes the fine diameter polymer melt to harden into filaments. Melt spinning is not used in case of the __________ fibres. Nylon 6:6 Polypropylene Polyester Acrylic Nylon 6:6 Polypropylene Polyester Acrylic ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Contact lenses for eyes are made of perspex, which is nothing but Polymethylmethacrylate Unsaturated polyester Polystyrene Polypropylene Polymethylmethacrylate Unsaturated polyester Polystyrene Polypropylene ANSWER DOWNLOAD EXAMIANS APP
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