摘要
本研究对产自云南省西双版纳1.5年生的山黄麻(Trema orientalis)进行制浆造纸基础评价。结果表明,山黄麻的木质部纤维平均长度接近1.2 mm,综纤维素和酸不溶木素的含量分别为78%和21%。采用硫酸盐法制浆,在最高蒸煮温度160℃、NaOH用量21%、升温时间90 min、保温时间90 min的条件下,细浆得率为52.7%,再经氧脱木素-二氧化氯-过氧化氢加氧气强化的碱抽提(ODEop)短程漂白后,其纸浆得率99.6%,白度85.0%,漂白浆的抗张指数为79.0 N·m/g、耐破指数为5.15 kPa·m^2/g、撕裂指数为5.81 mN·m^2/g。
For the evaluation of 1.5-year-old trema orientalis from Xishuangbanna,Yunnan Province,the fiber morphology and chemical composition of its xylem were examined,the average fiber length was close to 1.2 mm,total cellulose content was 78%,and the content of Klason lignin was 21%.Sulfate cooking of trema orientalis was conducted under the conditions of NaOH charge 21%,cooking maximum temperature 160℃,cooking time 180 min(including time to maximum temperature 90 min,time at maximum temperature 90 min),the screened yield was 52.7%.Resultant pulp was then bleached via ODEop bleaching sequence,the yield of bleached pulp was 99.6%and brightness 85.0%.The tensile index,burst index and tear index of bleached pulp was 79.0 N·m/g,5.15 kPa·m^2/g and 5.81 mN·m^2/g respectirely.
作者
韩绍中
陈克利
尹玉冬
吴祖东
连华阳
HAN Shaozhong;CHEN Keli;YIN Yudong;WU Zudong;LIAN Huayang(Yunnan Yun-jing Forestry&Pulp Mill Co.,Ltd.,Pu'er,Yunnan Province,666100;Faculty of Chemical Engineering,Kunming University of Science and Technology,Kunming,Yunnan Province,650500)
出处
《中国造纸》
CAS
北大核心
2019年第11期32-36,共5页
China Pulp & Paper
关键词
山黄麻
硫酸盐法蒸煮
纸浆
漂白
Trema orientalis
sulfate cooking
pulp
bleaching
作者简介
韩绍中先生,硕士,高级工程师,研究方向:制浆造纸工艺,新产品开发;通信作者:陈克利,博士,博士生导师,研究方向:节能、清洁化制浆新技术的研究,E-mail:824449353@qq.com。
