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%.
出处
《造纸化学品》
CAS
2015年第1期28-31,共4页
Paper Chemicals
关键词
生物酶
化机浆
改性
biological enzyme
chemi-mechanical pulp
modefying
