中国造纸2026，Vol.45Issue(2)：10-17,8.DOI:10.11980/j.issn.0254-508X.2026.02.002
杨木生物化学机械法制浆节能和改善浆料强度性能的研究
Study on Energy Saving and Improving the Strength Properties of Pulp by Biochemical-Mechanical Pulping of Poplar Wood
摘要
Abstract
To explore more application routes of biological enzyme pretreatment in the chemical thermal grinding mechanical pulping pro-cess,three methods(xylanase,cellulase and composite enzyme agent)were used to pre-treat the poplar wood chips after extrusion.The ef-fects of enzyme pretreatment on the energy consumption and pulp strength performance of chemical mechanical pulping were investigated.The results showed that treating the poplar wood chips after double helix extrusion with biological enzymes had a significant energy-saving ef-fect.Compared with the samples without enzyme preparations,the composite enzyme agent pretreatment had the best energy-saving ef-fect,with a 13.2%reduction in pulping energy consumption.The three pretreatment methods had different degrees of improvement on the strength performance of the pulp.At a free volume of 400 mL of CSF,the combined enzyme treatment could increase the burst strength index of the slurry from 0.840 kPa·m2/g to 1.02 kPa·m2/g,an increase of 21.4%;the xylanase treatment could raise the tensile strength index of the slurry from 19.3 N·m/g to 23.8 N·m/g,an increase of 23.3%.Field emission sacanning electron microscopy and trans-mission electron microscopy analysis indicated that after enzyme pretreatment,more fiber dissociation occurred between the S1 and S2 layer of the fiber cell wall during pulping,providing favorable conditions for subsequent pulping dissociation.During fine grinding of fibers,fiber swelling and external micro-fibering were more likely to occur.关键词
杨木/酶预处理/磨浆能耗/纤维解离Key words
poplar wood/enzyme pretreatment/pulping energy consumption/fiber dissociation分类
轻工纺织引用本文复制引用
耿博,梁龙,沈葵忠,韩善明,吴珽,邵心怡,房桂干..杨木生物化学机械法制浆节能和改善浆料强度性能的研究[J].中国造纸,2026,45(2):10-17,8.基金项目
国家重点研发计划"生物-原生浆"及功能化木质素制备关键技术产业示范"(2022YFC2105503) （2022YFC2105503）
中央财政林业科技推广示范资金项目(苏[2023]TG07). （苏[2023]TG07）
