Polymer Technology Addition of stabiliser during PVC manufacture is done to Prevent its thermal degradation Improve its elasticity Improve its impact strength Reduce the melt viscosity & glass transition temperature Prevent its thermal degradation Improve its elasticity Improve its impact strength Reduce the melt viscosity & glass transition temperature ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Viscosity of a polymer solution or melt Does not vary with temperature rise Increases with increase in temperature Decreases with increase in molecular weight Decreases with increase in temperature Does not vary with temperature rise Increases with increase in temperature Decreases with increase in molecular weight Decreases with increase in temperature ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Identify the group in which all the polymers mentioned can be used to make fibres. Polypropylene, Poly vinyl chloride, Silicon Cellulose derivatives, Polyisoprene, Polyethylene Cellulose derivatives, Polyamides, Polyurathane Butadiene copolymers, Polyamides, Urea aldehyde Polypropylene, Poly vinyl chloride, Silicon Cellulose derivatives, Polyisoprene, Polyethylene Cellulose derivatives, Polyamides, Polyurathane Butadiene copolymers, Polyamides, Urea aldehyde ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Due to its excellent permeability to air/gas and oxidation resistance, the tubes of automobile tyres is made of Buna S Butyl rubber Bunai N Cold SBR Buna S Butyl rubber Bunai N Cold SBR ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology The main use of butadiene is 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 As a plasticiser for unsaturated polyester As an anti-skimming agent in paint ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Buna-N is also called Butyl rubber Thiokol Neoprene Nitrile rubber Butyl rubber Thiokol Neoprene Nitrile rubber ANSWER DOWNLOAD EXAMIANS APP
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