漆酶和APMP废液中酚类物质共同改善OCC纸浆纤维性能的研究  

Modification of OCC Pulp by Laccase with the Phenols Contained in APMP Waste Liquor

作　　者：张鑫璐[1] 裴继诚[1] 张方东[1] 于秀玲[1] 胡惠仁[1] 

机构地区：[1]天津科技大学天津市制浆造纸重点实验室,天津300457

出　　处：《中国造纸学报》2011年第2期16-20,共5页Transactions of China Pulp and Paper

基　　金：国家自然科学基金项目(项目编号30771694);天津市科技计划发展项目(编号06TXTJJC14302)

摘　　要：采用气相色谱-质谱联用(GC-MS)对APMP废液中酚类物质进行鉴别,同时对不同方式处理的OCC纸浆进行纤维性能分析和成纸物理性能检测。GC-MS分析表明,APMP废液中含有3种酚类物质———对-甲氧基-苯酚、紫丁香醇和松柏醇,并且在其与漆酶共同处理OCC纸浆过程中这些酚类物质参与反应;模型物凝胶色谱(GPC)分析表明,漆酶处理后小分子酚类物质发生了自由基缩合,产物聚合;纤维形态和表面电镜分析表明,聚合的小分子酚类物质以缩合木素的形式迁移到纤维表面,增加纤维表面木素含量,从而提高成纸强度特别是湿环压强度。This paper studied the working mechanism of natural mediators（phenols derived from small molecule lignin existing in APMP（alkaline peroxide mechanical pulp） waste liquor） in laccase-assisted modification of OCC（old corrugated container） pulp.Using gas chromatography-mass spectrometry（GC-MS） to analysis natural phenolic compounds,the changes of fiber surface morphology and physical properties of the sheet after laccase/natural mediator（existing in APMP waste liquor） system treatment were studied.GC-MS confirmed that APMP waste liquor contained three major phenolic compounds,namely： 4-methoxyphenol,syringol and coniferyl alcohol.These phenolic compounds participated the laccase treatment,thus the lignin content on fiber surface increased therefore the paper strength,especially wet ring crush strength was improved.

关 键 词：漆酶 APMP废液 气相色谱-质谱联用 OCC纸浆 酚类物质 

分 类 号：TS749.7[轻工技术与工程—制浆造纸工程] Q55[生物学—生物化学]