Effect of Drawing Ratio on the Properties of UHMWPE Fibers for HDPE Contents
Vol. 56, No. 6, pp. 335-341,
Dec. 2019
10.12772/TSE.2019.56.335
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Abstract
The thermal conductivity of highly oriented ultra-high-molecular-weight
polyethylenes (UHMWPEs), such as fiber and film, are known to increase as the drawing
ratio increases in the direction of the orientation axis. UHMWPE fibers were prepared by
gel spinning and dry heat stretching methods. To increase the drawing ratio, a certain
amount of high-density polyethylene (HDPE) was added to the dope. The addition of
HDPE enhanced the drawing ratio, and the resultant tensile strength and modulus of the
UHMWPE fibers also increased. The HDPE-added fibers showed a lower degree of
crystallinity but a higher drawing ratio compared to those of the neat UHMWPE fibers.
Therefore, HDPE was an effective additive for producing highly drawn UHMWPE fibers as
potential fibrous heat-release materials.
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