| 张鑫璐,裴继诚,张方东,于秀玲,胡惠仁.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[J].中国造纸学报,2011,26(2):16-20 |
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| 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 |
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| DOI：10.11981/j.issn.1000-6842.2011.02.16 |
| 中文关键词: 漆酶 APMP废液 气相色谱-质谱联用 OCC纸浆 酚类物质 |
| Key Words:laccase APMP waste liquor gas chromatography-mass spectrometry OCC pulp phenols |
| 基金项目:国家自然科学基金项目（项目编号30771694）和天津市科技计划发展项目（编号06TXTJJC14302）。 |
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| 中文摘要: |
| 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。 |
| Abstract: |
| 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. |
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