Polymer Technology Which of the following is the most important rubber compounding ingradient which is used to improve wearing qualities of both natural rubber & SBR by imparting toughness? Carbon black Pine oil Rosin Phosphorous Carbon black Pine oil Rosin Phosphorous ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Thiokol is nothing but Polysulphide rubber Polyamide fibre Engineering plastic Exponded polystyrene Polysulphide rubber Polyamide fibre Engineering plastic Exponded polystyrene ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Which of the following polymers are produced by employing all bulk polymerisation, solution polymerisation & suspension polymerisation technique of addition (chain) polymerisation? PTFE Epoxy resin Bakelite PVC PTFE Epoxy resin Bakelite PVC ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Polyvinyl chloride (PVC) Can be made thermosetting by adding a plasticiser Uses either emulsion or suspension polymerisation methods Softening temperature is 200°C Is produced by polycondensation reaction Can be made thermosetting by adding a plasticiser Uses either emulsion or suspension polymerisation methods Softening temperature is 200°C Is produced by polycondensation reaction ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Viscosity of a polymer solution or melt Increases with increase in temperature Decreases with increase in molecular weight Does not vary with temperature rise Decreases with increase in temperature Increases with increase in temperature Decreases with increase in molecular weight Does not vary with temperature rise Decreases with increase in temperature ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology The inter particle forces between linear chains in nylon-66 are __________ bonds. Covalant None of these Hydrogen Ionic Covalant None of these Hydrogen Ionic ANSWER DOWNLOAD EXAMIANS APP
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