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Chemical Engineering - Polymer Technology

Exercise : Polymer Technology - Section 5
46.
Polymers are classified into four categories namely thermosetting, thermoplastic, elastomer and fibre depending upon their
molecular sizes.
magnitude of intermolecular forces.
resistance to heat.
polymerisation mechanism.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
47.
Which of the following is not a natural fibre?
Silk
Viscose rayon
Wool
Cotton
Answer: Option
Explanation:
No answer description is available. Let's discuss.
48.
Polyurathane can not be used to make
automobile cushion
thermal insulation in refrigerator
coating and adhesive
fibre reinforced plastic (FRP)
Answer: Option
Explanation:
No answer description is available. Let's discuss.
49.
Terylene is
same as dacron
a polyester
both(a) & (b)
neither (a) nor (b)
Answer: Option
Explanation:
No answer description is available. Let's discuss.
50.
Cross linked polymers formed from bi-and trifuctional groups in which cross-linkage in three dimensions via few chemical bonding across linear chains occur imparts to the polymer __________ properties.
thermoplastic
thermosetting
elastometric
brittleness
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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