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Simple theory of stress-strain properties of filled polymers

✍ Scribed by Lawrence E. Nielsen

Publisher
John Wiley and Sons
Year
1966
Tongue
English
Weight
327 KB
Volume
10
Category
Article
ISSN
0021-8995

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✦ Synopsis

By the use of simple n~odela of filled plastics, approxiinat c equatioiis are derived for the elongation to break in the case of perfect adhaion between the phases and for the tensile strength in the case of no adhesion between the polymer and filler phases. By combining these equations with equations for the modulus (assuming Hookean behavior) all the stress-strain properties can be derived, including rough estimates of the impact strength, as a function of filler concentration. Among other things, the theory predicts a very rapid decrease in elongation to break as filler concentration increases, especially for the case of good adhesion. I t is also predicted for the case of good adhesion that the tensile strength of a filled polymer can be greater than that of an unfilled polymer.

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