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Preparation and Properties of Poly (Lactic Acid) Nanocomposites Filled with Functionalized Single-Walled Carbon Nanotubes

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Abstract

This work prepared poly (lactic acid) (PLA)/single-walled carbon nanotubes (SWCNTs) composites using a solution blend method, and investigated the influence of the physical properties of PLA/SWCNTs composites. In order to enhanced interfacial interactions between PLA and SWCNTs, the purified SWCNTs were given functionalisation treatments with a nitric acid/sulfuric acid mixture. These acid-treated SWCNTs (A-SWCNTs) were then grafted with 3-isocyanatopropyl triethoxysilane (A-SWCNTs-Si). When these functionalized SWCNTs were used to fill the PLA matrix, the fractured surface of composite does not present the pullout phenomenon. The dimensional stability obviously increased by a factor of approximately 72. The storage modulus was also significantly improved. The surface resistivity of the PLA/SWCNTs composites decreased from 1 × 1016 to 2.22 × 104 Ω/cm2.

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Authors and Affiliations

  1. Department of Chemical and Materials Engineering, National Chin-Yi University of Technology, Taiping, Taichung, Taiwan

    Wei-Ming Chiu & Hsuan-Yuan Kuo

  2. General Education Center, Jen-Teh Junior College of Medicine, Nursing and Management, No. 79-9, Shaluen Hu Xizhou Li, Houlong Township, Miaoli, 356, Taiwan

    Peir-An Tsai

  3. Material Application Center, Industrial Technology Research Institute, R3-607, 31, Gongye 2nd Rd., Annan District, Tainan, Taiwan

    Jyh-Horng Wu

Authors
  1. Wei-Ming Chiu
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  2. Hsuan-Yuan Kuo
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  3. Peir-An Tsai
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  4. Jyh-Horng Wu
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Correspondence to Peir-An Tsai or Jyh-Horng Wu.

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Chiu, WM., Kuo, HY., Tsai, PA. et al. Preparation and Properties of Poly (Lactic Acid) Nanocomposites Filled with Functionalized Single-Walled Carbon Nanotubes. J Polym Environ 21, 350–358 (2013). https://doi.org/10.1007/s10924-012-0514-6

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