SEDL / STP / STP336-EB / STP42023S

An Investigation of the Dynamic Mechanical Properties of Polyethylene

Matsuoka, S.
Bell Telephone Laboratories, Murray Hill, N. J.

Aloisio, C. J.
Bell Telephone Laboratories, Murray Hill, N. J.

Pages: 13    Published: Jan 1963

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Abstract

A study was made of the effect of branching and thermal history of polyethylene on its dynamic mechanical properties. The polymers used were an injection-molded linear polyethylene, with and without annealing, and an injection-molded branched polyethylene. The dynamic test apparatus was operated over a frequency range of 1(T² to 10² cps and a temperature range of - 70 to 100 C. This temperature and frequency range includes the α and β transitions of polyethylene. These transitions are observed as peaks in the loss modulus curves.