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Effects of surface treatment of ramie fibers in a ramie/poly(lactic acid) composite

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Abstract

The chemical and morphological properties of ramie fibers treated by chemical surface modification were examined with Fourier transform infrared (FT-IR) spectroscopy. The mechanical and thermal decomposition properties were evaluated with respect to tensile strength, tensile modulus and thermogravimetric analysis (TGA). Surface morphological changes were investigated with scanning electron microscopy (SEM). Finally, the capabilities of composites reinforced with various chemically treated fibers were analyzed by investigating tensile and impact strengths. Additionally, the thermal mechanical properties of the composites were investigated with thermal mechanical analysis (TMA). Based on the results of these analyses, we concluded that pectin, lignin and hemicellulose were removed and thermal stability was increased with chemical treatments. The composites reinforced with ramie fiber showed better properties compared with pure PLA matrix with respect to tensile and impact strengths. The peroxide-treated fiber composite had the smallest thermal expansion.

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Authors and Affiliations

  1. Department of Clothing and Textiles, Chungnam National University, Daejeon, 305-764, Korea

    Hae Young Choi & Jung Soon Lee

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  1. Hae Young Choi
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  2. Jung Soon Lee
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Correspondence to Jung Soon Lee.

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Choi, H.Y., Lee, J.S. Effects of surface treatment of ramie fibers in a ramie/poly(lactic acid) composite. Fibers Polym 13, 217–223 (2012). https://doi.org/10.1007/s12221-012-0217-6

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  • DOI: https://doi.org/10.1007/s12221-012-0217-6

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