摘要
以紫丁香醇和L–苯丙氨酸作为酚类物质和氨基酸的代表物质,比较了漆酶/酚类物质和漆酶/氨基酸对OCC(废瓦楞箱板纸)纸浆纤维表面性能的改善效果.使用红外光谱分析、扫描电镜、纤维形态分析对纤维表面形貌进行观察.并对漆酶和小分子物质共同处理后的OCC纸浆进行物理性能检测.纤维形态分析和表面电镜的测定证明了酚类物质和氨基酸可以接枝到纤维表面,表现为纤维粗度增加,纤维表面出现沉积物及纤维间连接膜生成,从而提高成纸强度,特别是湿环压强度提高更为明显.
Syringic alcohol and L-phenylalanine were selected as representative of phenolic substances and amino acids to investigate the improvement results of OCC （old corrugated container） pulp with laccase/phenol and laccase/amino acid. Fiber characteristic and physical properties of the handsheet were monitored by FTIR,SEM,Fiber Tester and testing instrument of paper products respectively. The results indicated that the grafting reaction between small molecular compounds and lignin occurred by laccase catalytic oxidation. Fiber coarseness increased obviously. Fibers surface appeared rough and a surface adhesion between fibers was observed. Moreover enhancing the sheet strength, especially wet ring crush strength.
出处
《天津科技大学学报》
CAS
2011年第4期31-34,38,共5页
Journal of Tianjin University of Science & Technology
基金
诺维信研究基金资助项目
