高碘酸钠处理对苎麻纤维结构和性能的影响  

Effect on the Structure and Properties of Ramine Fiber by Sodium Periodate Treatment

作　　者：郑培培[1] 王浩[1] 张燕[1] 林红[1] 陈宇岳[1] 

机构地区：[1]苏州大学材料工程学院,江苏苏州215021

出　　处：《苏州大学学报（工科版）》2007年第4期24-27,57,共5页Journal of Soochow University Engineering Science Edition (Bimonthly)

基　　金：国家教育部高等学校博士学科点专项科研基金资助项目(编号20060285004)

摘　　要：采用高碘酸钠对苎麻纤维进行处理,研究了不同处理条件下苎麻纤维的失重率、结构及力学性能的变化。研究结果表明,苎麻纤维经高碘酸钠处理后氧化生成了醛基,随着氧化程度的提高,纤维结晶度逐渐降低,深度氧化后苎麻纤维出现明显的收缩卷曲现象。在低浓度短时间氧化条件下,苎麻纤维的失重率和力学性能损失较小;随着氧化剂浓度的增加和氧化时间的延长,苎麻纤维的失重率逐渐增大,强度不断下降。Ramine fiber was treated with sodium periodate and the weight loss, structure and mechanical properties of ramine fiber under different treating conditions was investigated. Results indicated that active group of aldehyde appeared in oxidized ramine fiber and the crystallinity decreased. Ramine fibers shrinked when oxidized under strong condition. The weight loss and mechanical properties deduced little in the oxidation with short time and low oxidant concentration; while the weight loss increased and mechanical properties declined gradually with increasing oxidant concentration and prolonging oxidation time.

关 键 词：苎麻纤维 高碘酸钠 结构和性能 

分 类 号：TN912.3[电子电信—通信与信息系统]