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자료유형
학술저널
저자정보
Joshi, Mangala (Department of Textile Technology, Indian Institute of Technology) Shaw, M. (Department of Textile Technology, Indian Institute of Technolog) Butola, B.S. (Department of Textile Technology, Indian Institute of Technology)
저널정보
한국섬유공학회 Fibers and Polymers Fibers and polymers 제5권 제1호
발행연도
2004.1
수록면
59 - 67 (9page)

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The development of high tenacity, high modulus monofilaments from Polypropylene/Clay nanocomposite has been investigated. Pure sodium montmorillonite nanoclay was modified using hexadecyl trimethyl ammonium bromide (HTAB) via an ion exchange reaction. Pure and modified clay were characterized through X-ray diffraction, FTIR and TGA. The modified clay was melt blended with polypropylene (PP) in presence of a swelling agent. Composite filaments from PP/Clay nanocomposite were prepared at different weight percentages of nanoclay and the spinning and drawing conditions were optimized. The filaments were characterized for their mechanical, morphological and thermal properties. The composite PP filaments with modified clay showed improved tensile strength, modulus and reduced elongation at break. The composite filaments with unmodified clay did not show any improvement in tensile strength but the modulus improved. The sharp and narrow X-ray diffraction peaks of PP/nanoclay composite filaments indicate increase in crystallinity in presence of modified clay at small loadings (0.5 %). The improved thermal stability was observed in filaments with modified as well as unmodified clays.

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