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Morphology and tensile properties of polypropylene-multiwalled carbon nanotubes composite fibers

Authors

  • Tawat Soitong,

    1. Department of Physics and Materials Science, Faculty of Science, Chiang Mai University, NANOTEC Center of Excellence, Chiang Mai University, Chiang Mai 50202, Thailand
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  • Jantrawan Pumchusak

    Corresponding author
    1. Department of Industrial Chemistry, Faculty of Science, Chiang Mai University, NANOTEC Center of Excellence, Chiang Mai University, Chiang Mai 50202, Thailand
    • Department of Industrial Chemistry, Faculty of Science, Chiang Mai University, NANOTEC Center of Excellence, Chiang Mai University, Chiang Mai 50202, Thailand
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Abstract

In this work, we analyzed tensile properties of polypropylene-multiwalled carbon nonotubes composite fibers. The multiwalled carbon nanotubes (MWCNTS) were used in different contents of 0, 1, 2, 3, 4, and 5 wt %. Dispersing agents were used to disperse MWCNTs in polypropylene matrix. After the dispersing agent was removed, the mixture was melt mixed. The fibers were spun by a home-made melt spinning equipment and stretching was done at a draw ratio of 7.5. By using 1–5 wt % of MWCNTs, the modulus of composite fibers increased by 69–84% and tensile strength increased about 39% when compared with the virgin polypropylene fibers. In addition, the MWCNTs dispersion in the matrix was monitored by scanning electron microscopy and transmission electron microscopy. © 2010 Wiley Periodicals, Inc. J Appl Polym Sci, 2011

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