Natural jute fibres mercerized by 20% NaOH treatment and by liquid ammonia reverted to the natural morphology on washing with water. Mercerization treatments produce more amorphous content than cellulose I to cellulose II conversion. Equatorial X-ray diffraction patterns obtained from these specimens were analysed by a function that best fits the profile giving appropriate weights to the Cauchy and Gaussian components in the peaks. Particle sizes were calculated after applying the Stokes deconvolution method to correct instrumental broadening. The difficulty in mercerizing this natural fibre is attributed to the higher lignin and hemicellulose contents that surround the cellulose I, thus preventing swelling, which is the starting point for mercerization.
Посилання на статтю:
X-ray diffraction study of jute fibres treated with NaOH and liquid anhydrous ammonia / Kh. M. Mannan // Polymer. – 1993. – Vol 34. – P. 2485-2487.