Polymer Technology Vinyl flooring is done using __________ sheets. Polythene PVC Polyvinyl acetate Polypropylene Polythene PVC Polyvinyl acetate Polypropylene ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Thermosetting resins/polymers as compared to thermoplastic ones are More brittle Formed by addition polymerisation only Soluble in all organic solvents Easily reshaped & reused More brittle Formed by addition polymerisation only Soluble in all organic solvents Easily reshaped & reused ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Molecular weight of a polymer is equal to the molecular weight of the repeat unit multiplied by the degree of polymerisation. What is the molecular weight of poly vinyl chloride (PVC), if its degree of polymerisation is 800? 50800 49200 50000 51600 50800 49200 50000 51600 ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Melamine formaldehyde resin which has a very high anti tacking properties, is not used for the Decorative laminates Tanning of leather Electrical insulation purpose Strengthening of plaster of paris Decorative laminates Tanning of leather Electrical insulation purpose Strengthening of plaster of paris ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Polycondensation reaction of polymerisation Produces epoxy polymers Does not produce linear polymers Does not need any catalyst Produces only thermoplastic material Produces epoxy polymers Does not produce linear polymers Does not need any catalyst Produces only thermoplastic material ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Addition of stabiliser during PVC manufacture is done to Prevent its thermal degradation Improve its impact strength Improve its elasticity Reduce the melt viscosity & glass transition temperature Prevent its thermal degradation Improve its impact strength Improve its elasticity Reduce the melt viscosity & glass transition temperature ANSWER DOWNLOAD EXAMIANS APP
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