生物酶改性化机浆长纤维的应用研究  

Application Research of the Biological Enzyme Pretreatment on Softwood Chemi-mechanical Pulp

作　　者：李强[1] 陈双双[1] 杨锋伟[1] 张国威[1] 

机构地区：[1]广东溢多利生物科技股份有限公司,广东珠海519060

出　　处：《造纸化学品》2015年第1期28-31,共4页Paper Chemicals

摘　　要：研究了酶预处理时间、酶预处理温度、pH及生物酶用量等4个因素对生物酶用于化机浆长纤维改性的影响。结果表明：所选4个因素对改性效果的影响都较大；酶预处理浆料的最佳工艺条件为预处理时间1 h，预处理温度50℃，预处理pH=7.0，生物酶用量0.025%（质量分数）；在最佳工艺条件下浆料的抗张指数、耐破指数和撕裂指数与空白样浆料相比均有所提高，分别提高3.66%、9.67%和0.68%。The influences of pulp pre-treatment time, pulp pre-treatment temperature as well as pulp pH and enzyme dosage on that softwood chemi-mechanical pulp modefied by biological enzyme are researched in this paper. The results show that： selected four factors all have large effects on modefying result . The optimum technological conditions are obtained as follow：pulp pre-treatment time 60 min , pulp pre-treatment temperature 50 ℃, pulp pre-treatment pH=7.0, enzyme dosage 0.025%（mass fractions）. In this condition, compared with the blank controlled sample the tensile index, bursting strength, tear index are increased by 3.66%、9.67%and 0.68%.

关 键 词：生物酶 化机浆 改性 

分 类 号：TS727.1[轻工技术与工程—制浆造纸工程]