基于AFM的107杨纤维表面形貌特征研究.PDFVIP

安徽农业大学学报, 2013, 40(1): 38-41 Journal of Anhui Agricultural University 网络出版时间：2012-12-28 13:29:26 [URL] /kcms/detail/34.1162.S1329.008.html 基于 AFM 的 107 杨纤维表面形貌特征研究 熊福全，周 亮，刘盛全* (安徽农业大学林学与园林学院，合肥 230036) 摘 要：以107 杨为研究对象，采用过氧化氢和冰醋酸混合液对应拉木和正常木进行处理获得2 种离析纤维； 采用铬酸对正常木进行处理获得1 种离析纤维；采用硫酸盐制备正常木化学浆获得 1 种化学浆纤维，并取出一半化 学浆进行打浆处理获得 1 种打浆纤维。使用原子力显微镜（AFM ）对上述5 种不同处理方法获得的纤维表面形貌 进行观察比较。结果表明，应拉木纤维比正常木纤维容易观测到清晰初生壁表面；铬酸离析方法比过氧化氢和冰醋 酸混合液离析方法容易观测到清晰初生壁表面；相比离析纤维，化学浆纤维次生壁微纤丝的定向排列方式清晰可见； 打浆后纤维较化学浆纤维，微纤丝定向排列被干扰，出现分丝帚化。 关键词：AFM ；107 杨；纤维表面；形貌特征 中图分类号：S781.1 文献标识码：A 文章编号：1672−352X (2013)01−0038−04 Superficial topography feature of fiber in poplar 107 determined by AFM XIONG Fu-quan, ZHOU Liang, LIU Sheng-quan (School of Forestry and Landscape Architecture, Anhui Agricultural University, Hefei 230036) Abstract: In this paper, two kinds of fibers of poplar 107 (fibers of tension wood and fibers of normal wood) were obtained by macerating with mixture of hydrogen peroxide and glacial acetic acid, respectively. The macer- ating fibers were obtained by chromic acid. Meanwhile, other two kinds of fibers in normal wood, i.e., chemical pulp fibers was obtained with kraft pulping and refining chemical pulp fibers was prepared by further pulping the chemical pulp fibers . Topography features of five kinds of different treatment fiber surfaces were scanned by atomic force microscope (AFM), and that were further observed and compared. The results showed that the pri- mary wall surfaces of fibers in tension wood were clearer to observe than those in normal wood, and the primary wall surfaces of fibers macerated by chromic acid were clearer to observe than that by mixture of hydrogen per- oxide and glacial acetic acid. Compar