摘要
采用超声辅助预处理及蒸煮对1年、2年和3年不同生长期的绿洲一号及巨菌草的制浆性能进行了评价。结果表明,在相同制浆工艺条件下(超声波预处理用碱量4%,硫化度2%,超声时间2 h;蒸煮用碱量6%,硫化度0,固液比1∶4,最高温度170℃,保温时间1 h),3年生巨菌草较适合作为制浆原料,其制浆的粗浆得率49.3%,卡伯值14.5,纸浆黏度850.63 mL/g,白度39.3%。超声波预处理液中木素含量4.3 g/L,还原糖含量2.9 g/L,蒸煮黑液中木素含量2.9 g/L,还原糖含量5.7 g/L。抄造纸张抗张指数56.4 N·m/g,撕裂指数20.5 mN·m^(2)/g,耐破指数2.35 kPa·m^(2)/g。
The pulping performance of Arund donax cv.Lvzhou No.1 and Pennisetum Sinese in different growth periods of 1,2,and 3 years by ultrasonic-assisted pretreatment and cooking process were evaluated.The research results showed that under the same pulping conditions(ultrasonic pretreatment with 4%alkali;sulfidity of 2%;ultrasonic time of 2 h;cooking alkali dosage of 6%,sulfidity of 0;solid-liquid ratio of 1∶4;maximum temperature of 170℃,and holding time of 1 h),the 3-year-old Pennisetum Sinese was more suitable as a pulp raw material,the unscreened pulp yield was 49.3%,Kappa value was 14.5,viscosity was 850.63 mL/g,brightness was 39.3%.The contents of lignin and reducing sugar in ultrasonic pretreatment liquid were 4.3 g/L and 2.9 g/L,and those in cooking black liquid were 2.9 g/L and 5.7 g/L.tensile index of paper was 56.4 N·m/g,and tearing index was 20.5 mN·m^(2)/g,burst index was 2.35 kPa·m^(2)/g.
作者
方智毅
王晓曦
雷雅婷
叶大鹏
刘斌
FANG Zhiyi;WANG Xiaoxi;LEI Yating;YE Dapeng;LIU Bin(College of Mechanical and Electrical Engineering,Fujian Agriculture and Forestry University,Fuzhou,Fujian Province,350000;College of Life Science,Fujian Agriculture and Forestry University,Fuzhou,Fujian Province,350000;National Engineering Research Center of JUNCAO Technology,Fujian Agriculture and Forestry University,Fuzhou,Fujian Province,350000)
出处
《中国造纸》
CAS
北大核心
2021年第6期40-46,共7页
China Pulp & Paper
基金
国家自然科学基金(31370146)
福建农林大学国际合作与交流项目(KXG15001A)
菌草生态产业协同创新中心攻关课题(K80ND800212)。
关键词
绿洲一号
巨菌草
超声波
制浆性能
Arund donax cv.Lvzhou No.1
Pennisetum Sinese
ultrasonic
pulp performance
