Polymer Technology Polymers are None of these Macromolecules Micromolecules Sub-micromolecules None of these Macromolecules Micromolecules Sub-micromolecules ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Melt spinning of polymers involves the forcing of polymer melt through spinnerettes (fine holes) into an atmosphere kept at a temperature lower than the melting point of the polymer, which causes the fine diameter polymer melt to harden into filaments. Melt spinning is not used in case of the __________ fibres. Polyester Polypropylene Nylon 6:6 Acrylic Polyester Polypropylene Nylon 6:6 Acrylic ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Low pressure Zeigler process of polythene manufacture Does not use any catalyst for polymerisation Produces very low density polythene Employs a pressure of 30 kgf/cm² Achieves an yield of 95-98% based on ethylene Does not use any catalyst for polymerisation Produces very low density polythene Employs a pressure of 30 kgf/cm² Achieves an yield of 95-98% based on ethylene ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology The monomer of natural rubber is 2 methyl-1-propene Isoprene Both B and C DMT 2 methyl-1-propene Isoprene Both B and C DMT ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology __________ are produced by reacting polybasic acid (e.g. phthalic anhydride) with polyhydric alcohol (e.g., glycerol). Amino resins Alkyd resins Unsaturated polyester Saturated polyester Amino resins Alkyd resins Unsaturated polyester Saturated polyester ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Hot drink (e.g, tea) cups are usually made of Polystyrene PVC Polythene Polypropylene Polystyrene PVC Polythene Polypropylene ANSWER DOWNLOAD EXAMIANS APP