Polymer Technology

Thermoplastic materials___________________?

Byadmin March 7, 2019August 25, 2021

Thermoplastic materials___________________?

A. Do not soften on application of heat
B. Are heavily branched molecules
C. Are solvent insoluble
D. None of these

Polymer Technology

Which of the following is an inorganic polymer ?

Which of the following is an inorganic polymer ?

A. Teflon
B. Perspex
C. Silicones
D. Bakelite

Read More Which of the following is an inorganic polymer ?
Polymer Technology

______________ is an addition polymer ?

______________ is an addition polymer ?

A. Nylon
B. Bakelite
C. Polythene
D. None of these

Read More ______________ is an addition polymer ?
Polymer Technology

Typical solvent polymerisation reaction conditions for the production of high density polythene by Zeigler process is__________________?

Typical solvent polymerisation reaction conditions for the production of high density polythene by Zeigler process is__________________?

A. 7 kgf/cm2 and 70 °C
B. 1000 kgf/cm2 and 100°C
C. 7 kgf/cm2 and 700°C
D. 1 kgf/cm2 (gage) and 70°C

Read More Typical solvent polymerisation reaction conditions for the production of high density polythene by Zeigler process is__________________?
CHEMICAL ENGINEERING | Polymer Technology

Contact lenses for eyes are made of perspex, which is nothing but

Question: Contact lenses for eyes are made of perspex, which is nothing but
[A].

polymethylmethacrylate
[B].
polystyrene
[C].
unsaturated polyester
[D].
polypropylene

Answer: Option A

Explanation:

No answer description available for this question.

Read More Contact lenses for eyes are made of perspex, which is nothing but
Polymer Technology

Scouring is a finishing operation during the manufacture of fibre, which aims at ______________ of fibres?

Scouring is a finishing operation during the manufacture of fibre, which aims at ______________ of fibres?

A. Improving the stretchability
B. Dyeing/colouring
C. Detergent solution washing
D. Glycol soaking

Read More Scouring is a finishing operation during the manufacture of fibre, which aims at ______________ of fibres?
Polymer Technology

The process involved in converting rubber into a thin sheet or coating it on fabric is called__________________?

The process involved in converting rubber into a thin sheet or coating it on fabric is called__________________?

A. Extrusion
B. Mastication
C. Calendaring
D. Vulcanisation

Read More The process involved in converting rubber into a thin sheet or coating it on fabric is called__________________?

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