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Melt-spinning and thermal stability behavior of TiO2 nanoparticle/polypropylene nanocomposite fibers

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Abstract

The elongational flow properties of TiO2 nanoparticle/polypropylene (PP) nanocomposite fibers were studied via melt spinning. The diameter, tension, and flow rate of fibers were directly measured and used to calculate the apparent elongational viscosity and apparent elongational strain rate using Cogswell’s theory. Thermal gravimetric analysis (TGA) was used to demonstrate that the TiO2 nanoparticles improved the thermal stability of the PP fibers. With a 1–3 wt % loading of the TiO2 nanoparticles, the PP fiber decomposition temperatures ranged from 338 °C for the pristine polymer to 342, 349, and 367 °C; the decomposition was accompamied by an initial 95 wt % weight loss. In addition, the well-distributed morphology of the TiO2 nanoparticles on the side surface of the PP matrix was observed using atomic force microscopy (AFM). At 1 wt % loading of the TiO2 nanoparticles, the surfaces of the PP nanofibers contained mono-disperse nanoparticles with sizes of 20–50 nm. Furthermore, the TiO2 nanoparticle/PP nanocomposite fibers were shown to be thermally stable and are suitable for application as an antibacterial polymer.

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Acknowledgement

We acknowledge financial support from the Ministry of Economic Affairs and the National Science Council (NSC) of Taiwan. We thank Professor Jiang-Jen Lin at National Taiwan University for helpful discussions.

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Authors and Affiliations

  1. Department of Polymer Engineering, National Taiwan University of Science and Technology, Taipei, 10607, Taiwan

    Chih-Wei Chiu & Po-Da Hong

  2. Institute of Textile Engineering, Feng Chia University, Taichung, 40724, Taiwan

    Chin-An Lin

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  1. Chih-Wei Chiu
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  2. Chin-An Lin
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  3. Po-Da Hong
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Correspondence to Chin-An Lin or Po-Da Hong.

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Chiu, CW., Lin, CA. & Hong, PD. Melt-spinning and thermal stability behavior of TiO2 nanoparticle/polypropylene nanocomposite fibers. J Polym Res 18, 367–372 (2011). https://doi.org/10.1007/s10965-010-9426-0

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  • DOI: https://doi.org/10.1007/s10965-010-9426-0

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