文献类型：期刊文献

中文题名：低能离子束辐照对纤维素微观结构变化的影响

英文题名：The effect of low energy ion implantation on crystallinity structure and morphological structure of cellulose

作者：张宁[1] 蒋剑春[1] 方静[1] 张宇[2] 虞龙[2]

第一作者：张宁

机构：[1]中国林业科学研究院林产化学工业研究所国家林业局林产化学工程重点开放性实验室;[2]南京工业大学

年份：2010

卷号：28

期号：4

起止页码：215-219

中文期刊名：辐射研究与辐射工艺学报

外文期刊名：Journal of Radiation Research and Radiation Processing

收录：CSTPCD;;Scopus;CSCD:【CSCD_E2011_2012】；

基金：中国博士后科学基金(20090460037)资助

语种：中文

中文关键词：纤维素;离子注入;结晶度;微观结构

外文关键词：Cellulose; Ion implantation; Degree of crystallinity; Morphological structure

分类号：O644.23;TQ352.62

摘要：采用红外光谱(IR),X射线衍射分析和扫描电镜(SEM)对低能离子(N+)注入纤维素粉微观结构的变化进行了研究。结果表明,低能离子辐照使纤维素分子内和分子间氢键均发生了断裂;随着辐照剂量的增加,纤维素相对结晶度逐渐减小,当注量增加到1500×1014cm-2时,相对结晶度较对照减少6.84%;纤维素颗粒直径逐渐变小,纤维变得越来越不完整,纤维表面出现较明显分层脱落现象,大多呈现的是细小碎片。
The changes of cellulose microstructure after implanted by low energy N＋ were characterized by IR,X-rays diffraction and SEM. The results showed that the cellulose intra-molecular and the intermolecular hydrogen bond have broken after implanted by low energy N＋. With the increment of implanted ion doses,the cellulose relative degree of crystallinity reduced gradually. When the implantation doses increased to 1500×1014 cm-2,the relative de-gree of crystallinity decreased 6.84% compared with the control sample; and the cellulose particle diameter reduced gradually too,the fiber became more and more incomplete. There were obvious laminations on the surface of fiber,and mostly were tiny fragment.