【摘要】 本文研究了在过氧化物酶的体系下利用木素前驱物松柏醇葡萄糖苷与果胶和葡苷聚糖的复合体来提高纸张的强度。生成的复合体由于有木素,在酶的作用下与纤维上的碳水化合物及残余木素聚合,从而将果胶与葡苷聚糖联接到纤维上,使得果胶-葡苷聚糖-DHP复合体与纤维接枝、缠绕和互穿,从而提高纸张的强度。经过处理后的纸张有明显的干强度提高,湿强度有很大的提高,湿抗张指数从2.13 N·m/g提高到4.53 N·m/g,提高了112.7%。从处理后的浆的红外谱图及核磁谱图的分析表明:松柏醇葡萄糖苷在纤维表面生成了DHP-碳水化合物复合体,DHP结构单元之间主要通过β-O-4、β-β和β-5方式相连接;DHP与碳水化合物之间主要是通过苯甲酯键和苯甲醚键相连的。更多还原

【Abstract】 This paper studied coniferin in the peroxidase system with glucomannan and pectin complex to improve the strength of paper.The complex formation because of lignin,with the catalysis of enzyme lignin can polymerize with the carbohydrate in fiber and the residual lignin.During the process the glucomannan and pectin can link to fi- ber,which made the pectin-glucomannan-DHP graft,twist and penetrate with fiber.So the paper strength was in- creased.Although the dry strength of paper had not significant change,the wet tensile strength of paper showed sig- nificant increase by 112.7% compared to untreated papers.The value was from 2.13 N·m/g to 4.53 N·m/g. FT-IR spectra and ¹³C-NMR spectra analyses showed that DHP-carbohydrate complexes was also formed on the surface of fibers,and the structure units of dehydrogenation polymer（DHP）was connected byβ-O-4,β-β,β-5 andβ-1 structures.Furthermore,phenylpropane units were also linked with carbohydrates in paper by ace- tal linkages,benzyl ether linkages and ester bonds.更多还原