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Which statements are correct regarding the mechanical properties of polymers?

Which statements are correct regarding the mechanical properties of polymers?

Elements Of Electromagnetics
Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
Section: Chapter Questions
Problem 1.1MA
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Which statements are correct regarding the mechanical properties of polymers?

a.

Drawing increases alignment and strength, and decreases ductility (% elongation)

b.

Annealing increases alignment, strength and elastic modulus

c.

Increasing temperature results in increased elastic modulus and strength, and decreased elongation

d.

Decreasing strain rate causes decreased strength and elastic modulus and increased elongation

e.

A higher degree of crosslinking generally results in decreased percent elongation at break, and increases strength

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