Polymer Technology

Polypropylene is preferred to polythene, because the former is ____________________?

Byadmin March 7, 2019August 25, 2021

Polypropylene is preferred to polythene, because the former is ____________________?

A. Non-inflammable
B. Harder
C. Stronger
D. Both B. & C.

Polymer Technology

Crystallisation of polymers is an undesirable property. Crystallisation of celluloid is prevented by adding_________________?

Crystallisation of polymers is an undesirable property. Crystallisation of celluloid is prevented by adding_________________?

A. Glycerol
B. Nitro cellulose
C. Camphor
D. None of these

Read More Crystallisation of polymers is an undesirable property. Crystallisation of celluloid is prevented by adding_________________?
CHEMICAL ENGINEERING | Polymer Technology

Bristles of tooth brushes are made of

Question: Bristles of tooth brushes are made of
[A].

nylon-6
[B].
nylon-66
[C].
polystyrene
[D].
PVC

Answer: Option B

Explanation:

No answer description available for this question.

Read More Bristles of tooth brushes are made of
Polymer Technology

Chain growth polymerisation is a process, in which the monomers are added in a chain fashion, and it requires an initiator to produce the free radical. An example of chain growth polymerisation products is __________________?

Chain growth polymerisation is a process, in which the monomers are added in a chain fashion, and it requires an initiator to produce the free radical. An example of chain growth polymerisation products is __________________?

A. Nylon-66
B. Teflon
C. Polyester
D. Bakelite

Read More Chain growth polymerisation is a process, in which the monomers are added in a chain fashion, and it requires an initiator to produce the free radical. An example of chain growth polymerisation products is __________________?
Polymer Technology

Cation exchange resins (0.3 to 1 mm size) used in water treatment is prepared from ______________ resins?

Cation exchange resins (0.3 to 1 mm size) used in water treatment is prepared from ______________ resins?

A. Epoxy
B. Phenol formaldehyde
C. Urea formaldehyde
D. Melamine formaldehyde

Read More Cation exchange resins (0.3 to 1 mm size) used in water treatment is prepared from ______________ resins?
Polymer Technology

Fillers such as zinc oxide and carbon black are added to the crude natural rubber before vulcanisation in order to improve its_________________?

Fillers such as zinc oxide and carbon black are added to the crude natural rubber before vulcanisation in order to improve its_________________?

A. Elasticity
B. Strength
C. Plasticity
D. Weathering characteristics

Read More Fillers such as zinc oxide and carbon black are added to the crude natural rubber before vulcanisation in order to improve its_________________?
Polymer Technology

In nylon-66, the first and second numbers (i.e., 6) respectively designate the number of carbon atoms present in the_________________?

In nylon-66, the first and second numbers (i.e., 6) respectively designate the number of carbon atoms present in the_________________?

A. Hexamethylene diamine and the ring
B. Hexamethylene diamine and the adipic acid
C. Adipic acid and the ring
D. None of these

Read More In nylon-66, the first and second numbers (i.e., 6) respectively designate the number of carbon atoms present in the_________________?

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