The Effect of Small Additions of a Liquid-Crystalline Polymer on the Mechanical Properties of Polyethylene
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Abstract
Results of an investigation into the mechanical properties of polyethylene with small, no more than 3 wt.%, additions
of a thermotropic liquid-crystalline polymer (LCP) are reported. Experimental data on the influence of
LCP additions on the tensile stress–strain diagram, elastic modulus, long-term (up to a 1000-h) creep, and
creep recovery after unloading of the specimens are obtained. The elastic properties of the materials are analyzed
taking into account the effect of self-reinforcement owing to the formation of extended LCP inclusions.
The results obtained are compared with experimental data. Analytical descriptions of the creep and creep recovery
of the materials investigated are also presented
