选择性氧化竹原纤维的热性能分析  

Analysis of thermal behavior of original bamboo fiber treated by selective oxidation

作　　者：储咏梅[1,2] 郑培培[2] 陈亮[1] 陈宇岳[2] 

机构地区：[1]扬州职业大学纺织服装系,江苏扬州225009 [2]苏州大学材料工程学院,江苏苏州215021

出　　处：《天津工业大学学报》2009年第6期19-21,共3页Journal of Tiangong University

基　　金：国家教育部高等学校博士学科点专项科研基金项目(20060285004);扬州职业大学教科研立项项目(06409)

摘　　要：以高碘酸钠为氧化剂对竹原纤维进行选择性氧化,反应生成活性基团—醛基,有利于对竹原纤维的进一步功能化改性.采用TG和DSC等分析方法对经不同浓度NaIO4氧化前后竹原纤维的热性能进行了表征,分析并研究选择性氧化过程中竹原纤维内部结构的变化特征.结果表明:氧化后竹原纤维结晶度降低,分子热运动加剧,纤维热稳定性降低;同时选择性氧化生成的醛基使得竹原纤维的内部结构发生了改变,部分大分子链发生分解和重组,有新的结晶结构形成.The cellulose of original bamboo fiber is prepared by selective oxidation with NaIO4, and the reactive aldehyde groups are formed which will benefit functional treatment of original bamboo fiber. The thermal behavior of oxidized original bamboo fiber is characterized by TG and DSC. The change features of internal structure of original bamboo in oxidation procedure are also analyzed. The results show that the crystallinity of oxidized original bamboo fibers decreases and the thermal stability property also lowers in some degree. Meanwhile, the aldehyde groups can change the internal structure of oxidized original bamboo fibers, part of molecular chain will occure decomposition and recombination, and new crystalline structure will be formed.

关 键 词：选择性氧化 高碘酸钠 氧化竹原纤维 热性能 结晶 

分 类 号：TS102.2[轻工技术与工程—纺织工程] TS195.6[轻工技术与工程—纺织科学与工程]