Polymer Technology Low pressure Zeigler process of polythene manufacture Employs a pressure of 30 kgf/cm² Produces very low density polythene Does not use any catalyst for polymerisation Achieves an yield of 95-98% based on ethylene Employs a pressure of 30 kgf/cm² Produces very low density polythene Does not use any catalyst for polymerisation Achieves an yield of 95-98% based on ethylene ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology The conversion of caprolactum in the above case is about __________ percent. 25 50 70 90 25 50 70 90 ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology In a cross linked polymer, the monomeric units are linked together to constitute a three dimensional network. Which of the following is a cross-linked polymer? Bakelite (phenol formaldehyde) Polyester Nylon-6 Polythene Bakelite (phenol formaldehyde) Polyester Nylon-6 Polythene ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Chain growth polymerisation is a process, in which the monomers are added in a chain fashion, and it requires an initiator to produce the free radical. An example of chain growth polymerisation products is Nylon-66 Polyester Bakelite Teflon Nylon-66 Polyester Bakelite Teflon ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Bakelite (phenol-formaldehyde) resin can not be used as Glass reinforced plastics Electrical insulation Decorative laminates Decorative paint Glass reinforced plastics Electrical insulation Decorative laminates Decorative paint ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology __________ moulding is used for shaping of thermosetting plastics exclusively. Transfer Extrusion Compression Injection Transfer Extrusion Compression Injection ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS