Polymer Technology Polycondensation reaction of polymerisation Produces only thermoplastic material 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 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 The monomer of poly vinyl chloride (PVC) is Chloroform Chloroethene Ethyl chloride Ethylene dichloride Chloroform Chloroethene Ethyl chloride Ethylene dichloride ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Thermosetting resins/polymers as compared to thermoplastic ones are Soluble in all organic solvents More brittle Easily reshaped & reused Formed by addition polymerisation only Soluble in all organic solvents More brittle Easily reshaped & reused Formed by addition polymerisation only ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Rayon is a __________ fibre. Polyester Cellulosic Natural Polyamide Polyester Cellulosic Natural Polyamide ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Most of the plastics are safe to be used upto a maximum temperature of __________ °C. 350 100 150 450 350 100 150 450 ANSWER DOWNLOAD EXAMIANS APP
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