丁香酸甲酯在漆酶处理纸浆及其木素中的作用  

Effect of Methyl Syringate on Pulp and Its Lignin in the Process of Treating Pulp with Laccase

作　　者：石淑兰[1] 孙兵[1] 裴继诚[1] 魏德津[1] 

机构地区：[1]天津科技大学材料科学与化学工程学院天津市制浆造纸重点实验室,天津300457

出　　处：《天津科技大学学报》2007年第4期1-5,共5页Journal of Tianjin University of Science & Technology

基　　金：国家自然科学基金资助项目(30471359);华南理工大学制浆造纸工程国家重点实验室基金资助项目(200618)

摘　　要：以未漂硫酸盐浆(KP)为原料,研究纸浆经漆酶处理,以及在漆酶处理过程中添加丁香酸甲酯(MS)对纸浆湿强度的改善效果;采用凝胶渗透色谱法测定纸浆中木素分子质量及其分布的变化.研究结果表明:漆酶处理可使纸浆湿强度明显提高;添加丁香酸甲酯的漆酶处理,对纸浆湿强度的进一步提高有促进作用;漆酶和漆酶/MS处理后,浆中木素分子质量提高,木素发生缩合,是纸浆湿强度提高的原因之一.经漆酶和漆酶/MS处理后的未漂KP浆,手抄片抄造过程中,不同干燥方式对纸浆湿强度的提高和木素分子质量及其分布的影响不同.The improvement of strength properties of unbleached kraft pulp treated by laccase was studied. In the laccase treatment process, the effect of methyl syringate （ MS ） on paper properties were also studied. At the same time, the lignin molecular weight and its distribution were measured by gel permeation chromatography. The results show that the wetstrength of the pulp is improved by laccase treatment, and the wet-strength is further increased by laccase/MS treatment. After treatment with laccase or laccase/MS, the lignin molecular weight increase and the lignin condenses, it is one of the reasons that wet-strength is improved. In the process of handsheets making, the effects of different drying method on wetstrength and lignin molecular weight of pulp are different.

关 键 词：漆酶 丁香酸甲酯 未漂硫酸盐浆 木素分子质量 湿强度 

分 类 号：TS714[轻工技术与工程—制浆造纸工程]