シリカ微粒子複合によるポリエチレンテレフタレート繊維のタフネス改善効果

抄録

A method of dispersing fine silica particles into polyester resin proposed by the authors was applied for the production of polyester industrial fibers. The as-spun fibers of silica hybrid polyester with intrinsic viscosity range of 0.6-0.7 showed lower maximum draw ratio than those regular PET in the drawing process. The drawn and annealed silica hybrid fibers, however, showed slightly lower strength and significantly higher elongation at break in comparison with those of regular PET fibers produced appllying the same drawing tension. In addition, it was found that fibers of high toughness, i.e. high strength and high elongation at break, could be produced by the one step spinning with in-line drawing process of high molecular weight silica hybrid polyester.