Cu^(2+)/吡啶/过氧化氢仿酶体系的漂白机理研究  

GIF Type Biomimetic System on Bleached Kraft Pulp

作　　者：谢益民[1,2] 杨静[1] 王鹏[1,2] 杨青[1] 

机构地区：[1]湖北工业大学制浆造纸工程学院,湖北武汉430068 [2]湖北工业大学绿色轻工材料湖北省重点实验室,湖北武汉430068

出　　处：《湖北工业大学学报》2015年第5期1-3,共3页Journal of Hubei University of Technology

基　　金：国家自然科学基金(31300494;31370574);湖北省教育厅青年人才项目(Q20131402);湖北工业大学博士启动金项目(BSQD12037);湖北省重点实验室开放基金((2013)2号-面上)

摘　　要：采用Cu2+/吡啶/过氧化氢构成的一种GIF型仿酶氧化系统漂白针叶木硫酸盐浆,经过仿酶处理、碱抽提、过氧化氢等3段处理,测定每段纸张的各种物理性能,并通过HPLC测定漂白过程中甘露糖含量的变化情况,探究仿酶漂白过程中半纤维素中多聚糖的变化规律。实验结果表明,经三段处理后,纸张的白度上升了147%,耐破度、抗张强度、撕裂度和耐折度都有不同程度的下降,半纤维素中甘露糖含量下降了34.53%。In the thesis, a GIF type biomimetic system with Cu2＋/ pyridine/peroxide was used to bleach sofwood kraft pulp. After biomimetic treatment, alkali extraction, and hydrogen peroxide bleaching, properties of the paper from each treatment stage were determined. The change of mannose content was also analyzed with HPLC in order to investigate the change of hemicellulose polysaccharide during biomimetic bleaching process. The results show that after the three stages treatment, the whiteness of the paper rose by 147%. However, tear index and folding enduence inceased at first and then decreased. The content of mannose decreased during biomimetic bleaching process in hemicellulose.

关 键 词：GIF型仿酶氧化系统 漂白硫酸盐浆 氧化 成纸性能 

分 类 号：TS71[轻工技术与工程—制浆造纸工程]