Question

What is the correct order of their tensile strength?

(a) PSU < PC < PVC < PS

(b) PC < PSU < PS < PVC

(c) PC < PS < PSU < PVC

(d) PVC < PS < PC < PSU

I have been asked this question in semester exam.

My enquiry is from Optical, Mechanical Properties of Thermoplastic Polymers topic in section Thermoplastic Polymers Properties & Processing of Food Packaging Technology

Answer 1

Correct answer is (d) PVC < PS < PC < PSU

The best explanation: The correct order of tensile strength of given plastics is – PVC<PS<PC<PSU. The tensile of the mentioned plastics is – Polyvinyl Chloride:40-50 N/mm^2, Polystyrene:50-65 N/mm^2, Polycarbonate:65-70 N/mm^2, Polysulfone:70-80 N/mm^2.