Polymer Technology Natural rubber is obtained from latex, which is a colloidal dispersion of rubber in water. Which of the following is used as a coagulant in latex? Neither A nor B Potassium alum Both A & B Ammonium alum Neither A nor B Potassium alum Both A & B Ammonium alum ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology __________ polythene is most prone to stress-cracking Cross-linked Low density High density Linear low density Cross-linked Low density High density Linear low density ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Out of all the elastomers, natural rubber has the longest elongation range & flexibility of the order of __________ percent. 2000-2500 1000-1500 1-1000 1500-2000 2000-2500 1000-1500 1-1000 1500-2000 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 Bakelite Polyester Nylon-66 Teflon Bakelite Polyester Nylon-66 Teflon ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Condensation polymerisation of caprolac-tum is carried out in the reactor maintained at a temperature of __________ °C for producing nylon-6. -20 to 25 50 to 75 250-280 100 to 150 -20 to 25 50 to 75 250-280 100 to 150 ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Polycaprolactum is also known as Teflon SBR Nylon-66 Nylon-6 Teflon SBR Nylon-66 Nylon-6 ANSWER DOWNLOAD EXAMIANS APP
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