Polyhexamethylene adipamide is also known as______________?
A. Bakelite
B. Nylon-66
C. Epoxy resin
D. Silicone rubber
Polyhexamethylene adipamide is also known as______________? Read More »
Polymer Technology A. Bakelite
B. Nylon-66
C. Epoxy resin
D. Silicone rubber
Polyhexamethylene adipamide is also known as______________? Read More »
Polymer Technology A. Do not soften on application of heat
B. Are heavily branched molecules
C. Are solvent insoluble
D. None of these
Thermoplastic materials___________________? Read More »
Polymer Technology A. Thermoplastic
B. Thermosetting
C. Either A. or B.
D. Fibres only
Cross linked polymers are__________________? Read More »
Polymer Technology A. Lower melting point
B. More abrasion resistant properties
C. Higher hardness
D. All A., B. and C.
Nylon-66 compared to nylon-6 has __________________? Read More »
Polymer Technology A. Cross linked polystyrene
B. Phenol formaldehyde resins
C. Polyesters
D. Polyamides
A. Butyl rubber
B. Silicon rubber
C. Nitrile rubber
D. Silicone rubber
Which of the following rubbers has the widest service temperature range (-75 to 275°C) ? Read More »
Polymer Technology A. Polypropylene
B. Polystyrene
C. Polyester
D. Polyurethane
A. Polyacrylonitrile
B. Polyamide
C. Saturated polyester
D. Alkyd resin
A. Coated fabrics
B. Front wheel tyres of aeroplanes (i.e., heavy duty tyres)
C. Gaskets
D. Soles of shoes
Styrene butadiene rubber (SBR) is never used for making__________________? Read More »
Polymer Technology A. Extrusion
B. Mastication
C. Calendaring
D. Vulcanisation