Characterisation of Ramie Yarn Treated with Sodium Hydroxide and Crosslinked by 1,2,3,4-Butanetetracarboxylic Acid

  • Zhou, Liming (Institute of Textiles & Clothing, The Hong Kong Polytechnic University) ;
  • Yeung, Philip Kwok-Wing (Institute of Textiles & Clothing, The Hong Kong Polytechnic University) ;
  • Yuen, Marcus Chun-Wah (Institute of Textiles & Clothing, The Hong Kong Polytechnic University) ;
  • Zhou, Xing (College of Chemistry and Chemical Engineering, Dong Hua University)
  • 발행 : 2003.10.01

초록

The microstructure and tensile properties of ramie treated with NaOH and crosslinked with 1, 2, 3, 4-butanetetracarboxylic acid were characterised. X-ray diffraction and FTIR were used to study the crystalline structure o f the resultant ramie yarns. Results showed that the maximum change in the structure of the modified ramie took place at 16% NaOH, which would completely transform Cellulose I to Cellulose II. Also, the crystallinity index and fibre orientation decreased to the minimum value while the absorption properties were enhanced. The average degree of polymerization of the treated ramie yams slightly decreased after NaOH treatment.

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