漆酶活化桉木纤维提高自黏合性的表征  

Characterization of Enhanced Auto-Adhesion of Eucalyptus Fibers Activated by Laccase

作　　者：魏华丽[1] 石淑兰[2] 裴继诚[2] 

机构地区：[1]青岛科技大学,山东青岛266042 [2]天津科技大学天津市制浆造纸重点实验室,天津300222

出　　处：《中国造纸学报》2007年第2期95-98,共4页Transactions of China Pulp and Paper

基　　金：国家自然科学基金项目(30471359)资助课题

摘　　要：采用漆酶活化桉木纤维．并压制无胶纤维板。通过不同漆酶处理条件下纤维板内结合强度的差异,表征漆酶处理提高纤维间自黏合性的效果。结果表明,木纤维经漆酶活化后,纤维之间白黏合性增强,纤维板的内结合强度明显提高,吸水性有所降低。漆酶活化木纤维浆料的最优化条件为:漆酶用量20U/g纤维,pH值4．5,处理温度40～45℃,处理时间1～2 h。并且,在氧气存在下处理效果较好。In this paper, eucalyptus fibers were activated with laccase and then were pressed into non-glue fiberboard. The auto-adhesion effect between the fibers was identified with internal strength of the non-glue fiberboard. The result indicated that after laccase activation auto-adhesion between the fibers was enhanced, and internal strength of the fiberboard manufactured with laccase-activated wood fibers was improved significantly, and water absorption was reduced. The optimum treatment condition was concluded： laccase dosage 20U/g fiber, pH4.5, 40-45℃, 1-2h; and the result will be better if the treatment is under oxygen condition.

关 键 词：漆酶 活化纤维 自黏合性 

分 类 号：TS744[轻工技术与工程—制浆造纸工程]