摘要
利用漆树漆酶替代真菌漆酶改性马尾松化学热磨机械浆,测定了改性前后纸浆的物理性能,利用纤维长度、粗度分析仪、衰减全反射傅立叶变换红外光谱(ATR-IR)、原子力显微镜(AFM)和X射线光电子能谱(XPS)对改性前后纸浆纤维表面性能进行分析。结果表明,与对照浆相比,漆酶处理后,纤维的长度、粗度变化不大,漆酶改性仅在纤维表面起作用,不会引起纤维的大量降解;漆酶改性过程中存在木素的降解溶出,纤维表面木素含量降低,碳水化合物含量升高,纸浆白度和强度有所提高。
Modification of Masson pine chemithermomeehanical pulp with rhus vernificera laccase instead of fungal laccase was studied in the paper. Physical properties of paper were measured, and surface properties of modified pulps were studied by ATR-IR, AFM and XPS. The results showed that the average length and coarseness of modified fibers changed little compared with the control pulp, and lacease treatment could only touch the surface of the fibers and there was not large number of degradation of the fibers. Some surface lignin was dissolved and surface lignin coverage was decreased after enzyme treatment,while whiteness and strength of paper were increased.
出处
《纸和造纸》
北大核心
2008年第6期73-77,共5页
Paper and Paper Making
基金
国家自然科学基金(50776035
U0733001)
国家科技支撑计划(2007BAD34B01)
创新团队研究计划(IRT0552)资助项目
关键词
漆树漆酶
化学热磨机械浆
生物改性
表面性能
rhus vernificera laccase
chemithermomechanical pulp
bio-modification
surface properties
