纤维表面木素含量对纸页强度的影响  

The Impact of Lignin Coverage on Fiber Surface to Paper Strength

作　　者：王宝玉[1,2] 何北海[1,3] 李军荣[1] 孟云兰[1] 

机构地区：[1]华南理工大学制浆造纸工程国家重点实验室,广东广州510640 [2]广东轻工职业技术学院,广东广州510300 [3]华南理工大学造纸与污染控制国家工程研究中心,广东广州510640

出　　处：《造纸科学与技术》2010年第5期1-6,共6页Paper Science & Technology

基　　金：国家自然科学基金(20776054)资助项目

摘　　要：本文用CTMP分别与漂白针叶木硫酸盐浆和漂白阔叶木硫酸盐浆配抄纸页,用原子力显微镜和X射线光电子能谱仪从微观角度研究了纤维表面木素含量对纸页强度的影响。研究表明化学浆纤维表面存在大量的微细纤维,而CTMP纤维表面覆盖有颗粒状木素、抽出物。纤维表面木素含量随打浆程度提高而降低,混合纤维表面木素含量与浆料的配比存在线性关系。受纤维表面木素浓度的影响,随CTMP配比增加,纸页的抗张指数和层间结合强度降低。Handsheets were prepared with CTMP furnished with bleached softwood kraft pulp and bleached hardwood kraft pulp respectively. XPS and AFM were used to study the impact of lignin coverage on fiber surface to handsheets strength. The results indicated that a lots of microfibrils covered on the chemical pulp fiber surface, whereas granular lignin and extractives retained on the fiber surface of mechanical pulp. Lignin content on the fiber surface decreased with refining degree. Lignin content of mixed fibers was positive propotional to CTMP furnish ratio. Due to the impact of lignin concertration on fiber surface, tensile index and scott bond strength reduced with the increase of CTMP furnish ratio.

关 键 词：化学热磨机械浆 X射线光电子能谱仪 原子力显微镜 纤维表面木素 

分 类 号：TS721.2[轻工技术与工程—制浆造纸工程]