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中文摘要：
研究了漆酶催化阿魏酸改善纸张湿强度的方法及其机理。采用化学分析、红外光谱和CP／MAS^13C—NMR波谱分析相结合的方法，分析了漆酶催化阿魏酸使纤维进行接枝共聚和交联的机理。研究结果表明：阿魏酸在漆酶的作用下能够与未漂浆中的残余木素聚合，在纤维表面产生抗水性的化学键，从而增强纸张的湿强度，湿强度从2．15N·m／g提高到4．42N·m／g，提高了105．6％。但是纸张的干强度几乎没有提高。
英文摘要：
The method and mechanism of enhancement of wet strength of paper treated with laccase and ferulic acid were investigated. The combination of chemical analysis, IR and CP/MAS ^13C -NMR analyses were used to analyze the mechanism of graft co-polymerization and crosslinking of fiber through ferulie acid catalyzed by laccase. It was found that ferulic acid was co-polymerized with lignin on the fiber surface so that water-resistant chemical bonding was formed to increase wet strength of paper. The wet strength of paper increased from 2.15 N · m/g to 4.42 N · m/g. The wet strength was enhanced by 105.6% compared to untreated papers. However, the dry strength of paper had not significant change.
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