Polymer Technology Condensation polymerisation of __________ produces bakelite. Urea & formaldehyde Phenol & acetaldehyde Propylene Phenol & formaldehyde Urea & formaldehyde Phenol & acetaldehyde Propylene Phenol & formaldehyde ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Plasticisers are added to synthetic plastics to Impart flexibility Improve workability during fabrication All of these Develop new improved properties not present in the original resin Impart flexibility Improve workability during fabrication All of these Develop new improved properties not present in the original resin ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology __________ is a copolymer. PVC Nylon-66 Poly tetra flouro ethylene Polyrophylene PVC Nylon-66 Poly tetra flouro ethylene Polyrophylene 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. Acrylic Polyester Nylon 6:6 Polypropylene Acrylic Polyester Nylon 6:6 Polypropylene ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Nylon-6 as compared to nylon-66 is None of these Harder Having higher melting point More abrasion resistant None of these Harder Having higher melting point More abrasion resistant ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Thermosplastic materials Are solvent insoluble Do not soften on application of heat None of these Are heavily branched molecules Are solvent insoluble Do not soften on application of heat None of these Are heavily branched molecules ANSWER DOWNLOAD EXAMIANS APP
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