Polymer Technology In case of wet spinning of polymers, the polymer solution is forced through spinnerates into, a coagulating bath to give a filament form. Wet spinning is not used in case of the __________ fibres. Viscose rayon Saturated polyester Acrylic Polyvinyl acetate Viscose rayon Saturated polyester Acrylic Polyvinyl acetate ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Cation exchange resins (0.3 to 1 mm size) used in water treatment is prepared from __________ resins. Urea formaldehyde Melamine formaldehyde Epoxy Phenol formaldehyde Urea formaldehyde Melamine formaldehyde Epoxy Phenol formaldehyde ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Addition of stabiliser during PVC manufacture is done to Reduce the melt viscosity & glass transition temperature Improve its impact strength Improve its elasticity Prevent its thermal degradation Reduce the melt viscosity & glass transition temperature Improve its impact strength Improve its elasticity Prevent its thermal degradation ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology In step growth polymerisation, condensation occurs in a stepwise manner with or without the elimination of smaller molecules. An example of step growth polymerisation product is PVC Polypropylene Terylene Polybutadiene PVC Polypropylene Terylene Polybutadiene ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Silicone resins, which are highly water repellant and has good heat resistance can not be used As room temperature adhesive As grease & lubricant Hydraulic fluid for heat transfer Resin for lamination As room temperature adhesive As grease & lubricant Hydraulic fluid for heat transfer Resin for lamination ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology The process involved in converting rubber into a thin sheet or coating it on fabric is called Mastication Calendering Extrusion Vulcanisation Mastication Calendering Extrusion Vulcanisation ANSWER DOWNLOAD EXAMIANS APP
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