Polymer Technology

_______________ practically possess no elasticity?

Byadmin March 7, 2019August 25, 2021

_______________ practically possess no elasticity?

A. Vulcanite or ebonite
B. Spandex fibre
C. Polysulphide rubber
D. Epoxy resin

Polymer Technology

_____________ polythene is most prone to stress-cracking ?

_____________ polythene is most prone to stress-cracking ?

A. High density
B. Low density
C. Cross-linked
D. Linear low density

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CHEMICAL ENGINEERING | Polymer Technology

Thermosetting polymers as compared to thermoplastic polymers

Question: Thermosetting polymers as compared to thermoplastic polymers
[A].

are formed by addition polymerisation.
[B].
have three dimensional structure.
[C].
have linear structure.
[D].
none of these.

Answer: Option B

Explanation:

No answer description available for this question.

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Polymer Technology

SBR is produced by the copolymerisation of butadiene & styrene by employing emulsion polymerisation. The weight ratio of styrene and butadiene is maintained at_________________?

SBR is produced by the copolymerisation of butadiene & styrene by employing emulsion polymerisation. The weight ratio of styrene and butadiene is maintained at_________________?

A. 1: 3
B. 3 : 1
C. 1 : 2
D. 2 : 1

Read More SBR is produced by the copolymerisation of butadiene & styrene by employing emulsion polymerisation. The weight ratio of styrene and butadiene is maintained at_________________?
Polymer Technology

Antioxidants are added to rubber to protect it from the attack of light, heat & atmospheric ozone. Which of the following is an antioxidant used in rubber ?

Antioxidants are added to rubber to protect it from the attack of light, heat & atmospheric ozone. Which of the following is an antioxidant used in rubber ?

A. Carbon
B. Alkylated diphenyl amine
C. Thiokol
D. Magnesium

Read More Antioxidants are added to rubber to protect it from the attack of light, heat & atmospheric ozone. Which of the following is an antioxidant used in rubber ?
Polymer Technology

Buna-S is also known as_________________?

Buna-S is also known as_________________?

A. Teflon
B. PTFE
C. SBR
D. Polycrylates

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Polymer Technology

Which of the following is not an elastomer ?

Which of the following is not an elastomer ?

A. Polyisoprene
B. Neoprene
C. Nitrile-butadiene
D. None of these

Read More Which of the following is not an elastomer ?

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