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Structure and performance ofBombyx mori silk modified with nano-TiO2 and chitosan

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Abstract

Bombyx mori (B. mori) silk was modified with the nano-TiO2 and chitosan dispersion system by the crosslinking reactions of citric acid (CA) and maleic anhydride (MA). The average size of the nano-TiO2 particles in the aqueous dispersion system was 36.7 nm. The scanning electron microscopy (SEM) micrographs showed that the nano-TiO2 particles were spherical and homogeneously dispersed in the dispersion system, and the surface ofB. mori silk fiber treated with the nano-TiO2 and chitosan dispersion system was rougher than that of the untreated one. X-ray diffraction (XRD) and Fourier transform infrared (FT-IR) Spectrometry indicated that the crystallinity of theB. mori silk fiber increased after treatment. It was also found that the nano-TiO2 and chitosan contributed to significantly enhance the mechanical properties including breaking strength, breaking elongation, initial modulus, rupture work, and elastic recovery property of theB. mori silk fiber. The wrinkle-resistant performance of the treatedB. mori silk fabrics was also greatly improved.

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Authors and Affiliations

  1. School of Material Engineering, Suzhou University, 215021, Suzhou, P. R. China

    Y. H. Lu, H. Lin, Y. Y. Chen, C. Wang & Y. R. Hua

  2. Department of Textile Engineering, Eastern Liaoning University, 118000, Dandong, P. R. China

    Y. H. Lu

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  1. Y. H. Lu
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  2. H. Lin
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  3. Y. Y. Chen
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  4. C. Wang
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  5. Y. R. Hua
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Correspondence to Y. Y. Chen.

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Lu, Y.H., Lin, H., Chen, Y.Y. et al. Structure and performance ofBombyx mori silk modified with nano-TiO2 and chitosan. Fibers Polym 8, 1–6 (2007). https://doi.org/10.1007/BF02908152

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  • DOI: https://doi.org/10.1007/BF02908152

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