Polymer Technology - Study Mode

[#261] Plastic articles are normally produced by __________ moulding.
Correct Answer

(B) Injection

[#262] Polyurathane can not be used to make
Correct Answer

(D) Fibre reinforced plastic (FRP)

[#263] Cellulose acetate has very high film permeability among all the polymers of the order of 5000 gm/100 m 2 . Which of the following polymers has the maximum film elongation (of the order of 100%)?
Correct Answer

(B) Polythene

[#264] Flexible foam (for mattresses) are usually made of
Correct Answer

(C) Polyurethanes

[#265] Bakelite is
Correct Answer

(C) Same as thermoset phenol formaldehyde