Question

Calendering and extrusion are similar processes.

(a) True

(b) False

I have been asked this question at a job interview.

I want to ask this question from Extrusion and Calendering in Thermoplastics in division Thermoplastic Polymers Properties & Processing of Food Packaging Technology

Answer 1

Right choice is (b) False

To explain I would say: This is a false statement. Calendering and extrusion are different processes. Extrusion is a process of passing the molten plastic through a shaping device, to give it any form. Whereas, calendering is a complementary process to film and sheet extrusion, which involves the formation of continuous sheets of controlled thickness by passing plastic materials through rollers.