Ultra high performance with improved thermal properties of PET fibers were obtained using a low molecular weight polymer via horizontal isothermal bath, followed by a postdrawing process. We investigated a unique formation of precursor for crystallization which differentiated in orientation and crystalline structures from traditional high speed spinning PET fibers. A sharp increase in crystallinity for treated fiber was observed after drawing process although the fibers showed a very low or almost no any crystallinity before drawing process.

Developing an unusual formation of a precursor for crystallization of high performance PET fibers using a low molecular weight polymer

245th National Meeting (2013)

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