Influence of Alkali Pretreatment on Selective Oxidation of Cotton Fiber
Pretreatment for cotton fiber by sodium hydrate is proposed in this paper. The contrast of the structure and performance of cotton fiber with or without alkali pretreatment selective oxidised by sodium periodate was carried out.The results show that the cellulose crystals were transformed from cellulose Ⅰ to Ⅱ structure gradually after alkali pretreatment from low to high concentration, which improved the reactivity of cotton fiber with sodium periodate. Compared with the ones without pretreatment, the aldehyde group content of oxidized cotton samples with alkali pretreatment obviously increased. Under the same oxidization by 8g/l Na104 for cotton fiber, the increasing concentration of alkali enhanced the degradation degree of the crystalline region of oxidized cotton samples.
cotton fiber alkali pretreatment selective oxidation structure properties
WANG Hao LIN Hong CHEN Yu-yue YANG Mei-gui YANG Li
College of Material Engineering, Soochow University 178 East Ganjiang Road, Suzhou 215021, Jiangsu, P. R. China
国际会议
苏州
英文
403-406
2007-09-13（万方平台首次上网日期，不代表论文的发表时间）