EFFECT OF UNBLEACHED APMP PROPERTIES WITH LACCASE TREATMENT

摘要：

This paper studied that unbleached APMP was treated with laccase together with a mediator .The influence of such factors as enzyme treatment temperature, pH value, enzyme dosage and enzyme treatment time on the pulp whiteness and paper properties were analyzed in this paper. Under the optimum conditions, the enzyme treatment increased the paper properties, but the whiteness decreased. The function of laccase was mainly to degrade lignin on fiber surface. The optimum LMS modification process conditions were as follows: 3LAMU/g laccase dosage, pH value of 6, temperature of 50 , 60min of ℃ modification time, 5％ pulp dosage. Under this optimum conditions , the APMP whiteness was decreased 3.81％ISO compared to the sample pulp; the breaking length was 3.18km ,the tear index was 4.31mN·m2·g-1，the burst index was 0.41 kPa·m2·g-1.

关键词： Laccase treatment APMP Paper properties

作者: Hongkui Li Cuiling Zhu Xinping Li Yuhong Dang, Xiaoman Xu

作者单位: College of Papermaking Engineering,Shaanxi University of Science and Technology,Xian, 710021, China

会议类型: 国际会议

会议名称: International Mechanical Pulping Conference 2011(2011国际机械浆学术会议)

会议地点: 西安

会议语种:英文

页码: 207-210

在线出版日期: 2011-06-26（万方平台首次上网日期，不代表论文的发表时间）