白腐菌预处理竹子化机浆的XPS和AFM分析  

Analysis of Bamboo CMP Pretreated with White-rot Fungi by XPS and AFM

作　　者：熊建华[1,2,3,4] 程昊[2] 王双飞[3] 李可成 

机构地区：[1]广西大学化学化工学院,广西南宁530004 [2]广西工学院生化系,广西柳州545006 [3]广西大学造纸科学研究所,广西南宁530004 [4]加拿大New Brunswick大学,加拿大弗雷德里克顿E3B6C2

出　　处：《中国造纸学报》2010年第2期32-38,共7页Transactions of China Pulp and Paper

基　　金：国家973计划前期研究项目资助课题,项目编号:2006CB708600

摘　　要：利用XPS和AFM技术对白腐菌预处理前后的竹子化机浆纤维表面特性进行分析,探讨白腐菌预处理对纤维表面木素和抽出物等化学组分以及表面微观结构的影响。利用XPS从化学分析的角度反映纤维表面O/C比值、C1s峰的碳价态的变化情况,并定量分析纤维表面木素和抽出物含量。结果表明,白腐菌预处理后纤维表面O/C比值增大,C1峰面积减小,说明白腐菌预处理后纤维表面木素和抽出物含量降低,碳水化合物含量增加。利用AFM对纤维表面形貌分析的结果与XPS结论一致。The surface properties of bamboo CMP fibers before and after white-rot fungi pretreatment were analyzed by XPS and AFM. The effects of the pretreatment on the changes of surface composition and ultra-structure were discussed. XPS was used to identify the O/C ratio and the C1 percentage changes brought by fungi pretreatment. The lignin and extractives contents on fiber surface were also analyzed by XPS. The results of XPS analysis showed that the fungi pretreated CMP fibers had a higher O/C ratio and lower C1 percentage than the control pulp fibers. This implied that fungi pretreated pulp had less lignin and extractives,and more hydrophilic groups and carbohydrate on the fiber surface. The fiber surface morphology analysed by AFM also approved the result of XPS analysis.

关 键 词：CMP竹浆 生物机械制浆 表面特性 白腐菌 

分 类 号：TS712[轻工技术与工程—制浆造纸工程] TS749.3