Study of microstructural defects in ramie fibre by X-ray single peak analysis

Abstract

159-164<span style="font-size:11.0pt;line-height:115%; font-family:" calibri","sans-serif";mso-ascii-theme-font:minor-latin;mso-fareast-font-family:="" "times="" new="" roman";mso-fareast-theme-font:minor-fareast;mso-hansi-theme-font:="" minor-latin;mso-bidi-font-family:calibri;mso-bidi-theme-font:minor-latin;="" mso-ansi-language:en-us;mso-fareast-language:en-us;mso-bidi-language:ar-sa"="">Various single line X-ray diffraction techniques for the analysis of crystallite size and lattice distortions have been reviewed and applied to study the lateral crystallite size and paracrystalline distortion in ramie fibres. The analysis of (110) reflection shows that the lateral crystallite size decreases, while the paracrystalline distortion increases on conversion of native cellulose I to cellulose II by treatment with strong aqueous NaOH solution at room temperature (~ 30·C) and 0ᵒC respectively.</span