Characteristics of wood cellulose fibers treated with periodate and bisulfite
Characteristics of wood cellulose fibers treated with periodate and bisulfite
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DOI：
10.1021/ie0704750
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发表时间：
2007-11-07
影响因子：
4.2
通讯作者：
Bai, L. L.
中科院分区：
文献类型：
--
作者：
Hou, Q. X.;Liu, W.;Bai, L. L.
采用高碘酸盐氧化木质纤维素纤维制备双醛纤维素（DAC）纤维。对处理后纤维的醛基含量、结晶度、聚合度和纤维长度进行了表征。还测量了由处理过的纤维制成的测试片的拉伸强度。结果表明，高碘酸盐氧化显著增加了测试片材的醛基含量以及干和再湿拉伸强度。用亚硫酸氢盐对氧化纤维进行硫化处理，可提高未干燥纤维的吸水性和由硫酸化纤维制成的测试片材的干燥和再湿拉伸强度。
Wood cellulose fibers were oxidized by periodate to obtain dialdehyde cellulose (DAC) fibers. The aldehyde group content, degrees of crystallinity and polymerization, and fiber length of treated fibers were characterized. The tensile strength of the test sheets made of treated fibers was also measured. The results show that periodate oxidation significantly increased the aldehyde group content and the dry and rewet tensile strengths of the test sheets. Sulforiation of the oxidized fibers by bisulfite improved the undried fiber water absorbency and the dry and rewet tensile strengths of the test sheets made of sulfortated fibers.