Polymer Technology Crystallisation of polymers is an undesirable property. Crystallisation of celluloid is prevented by adding None of these Nitro cellulose Camphor Glycerol None of these Nitro cellulose Camphor Glycerol ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology In case of dry spinning of polymers, the polymer solution in a volatile solvent is forced through the spinnerates into a warm air chamber, where the solvent evaporates leaving behind the polymer in the filament form. Dry spinning is used for __________ fibres. Polyvinyl acetate Polythene PVC Rayon Polyvinyl acetate Polythene PVC Rayon ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Which of the following polymers belong to the class of formaldehyde resin? None of these Teflon Melamine resins Dacron None of these Teflon Melamine resins Dacron ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology In condensation polymerisation as compared to addition polymerisation The monomers are unsaturated compounds No co-product is lost Generally only one monomer is involved The monomers contain two functional groups The monomers are unsaturated compounds No co-product is lost Generally only one monomer is involved The monomers contain two functional groups ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Low pressure Zeigler process for the manufacture of polythene uses a catalyst which is Fe Ni V₂O₅ Aluminium triethyl combined with titanium tetrachloride Fe Ni V₂O₅ Aluminium triethyl combined with titanium tetrachloride ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Alkyd resin can not be used for making Plasticiser Fibres Film forming materials Paint & varnish Plasticiser Fibres Film forming materials Paint & varnish ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS