Effect of Relax Heat Treatment on the Performance of PET Fibers of HMLS

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Abstract:

To characterize the performance of Poly(ethylene terephthalate) (PET) fibers of high modulus and low shrinkage (HMLS), static and dynamic mechanical test, DSC, DMA and sonic orientation experiments were carried out. The results indicated that tenacity, initial modulus, Lase-5 decreased and ultimate elongation increased with heat treatment temperature. The dimensional stability of the HMLS fiber is limited by the heat treatment especially when the temperature exceeded Tg because a larger plastic deformation happen with the relaxation of molecular chain in amorphous phase.

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Advanced Materials Research (Volumes 560-561)

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614-619

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August 2012

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© 2012 Trans Tech Publications Ltd. All Rights Reserved

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