extrusion
mastication
calendering
vulcanisation
✅ The correct answer is option C.
Polymer Technology MCQs
Non sulphonated hard bakelites are not used for making
ion-exchange resins
fountain pen barrels
formica table tops
combs
✅ The correct answer is option A.
Temperature maintained in the emulsion polymerisation reactor for PVC manufacture is about __________ ° C.
-20
50
250
500
✅ The correct answer is option B.
Phenol formaldehyde
employs addition polymerisation.
employs condensation polymerisation.
is a monomer.
is an abrasive material.
✅ The correct answer is option B.
Which of the following is the most important rubber compounding ingradient which is used to improve wearing qualities of both natural rubber & SBR by imparting toughness ?
Phosphorous
Carbon black
Pine oil
Rosin
✅ The correct answer is option B.
Perspex can be used as a substitute of glass. Its monomer is
methyl methacrylate
DMT
butadiene
tetrafluroethylene
✅ The correct answer is option A.
Nylon 6 as compared to nylon 6, 6 has lower
abrasion resistance.
thermal stability.
adhesion to rubber.
hardness.
✅ The correct answer is option A.
Thermosetting materials
are cross-linked molecules.
soften on application of heat.
are solvent soluble.
none of these.
✅ The correct answer is option A.
Which of the following is not the commercial name of polymethylmethacrylate (PMMA) ?
Perspex
Lucite
Plexiglass
Teflon
✅ The correct answer is option D.
Main constituent of natural rubber is
polystyrene
polyisoprene
polybutadiene
poly chloroprene
✅ The correct answer is option B.