蒸汽爆破预处理对针叶木化学浆的形态变化的影响  

The Effect of Steam Explosion Pretreatment on the Morphology of Softwood Chemical Pulp

作　　者：胡云[1,2] 刘金刚[1,2] 

机构地区：[1]中国制浆造纸研究院,北京100102 [2]制浆造纸国家工程实验室,北京100102

出　　处：《造纸科学与技术》2016年第2期16-19,69,共5页Paper Science & Technology

基　　金：科技部科研院所技术开发研究专项资金(2013EG111210)

摘　　要：以蒸汽爆破为预处理手段,采用针叶木化学浆作为纤维原材料,期望高效、经济和环境友好的制备微纤化纤维素(MFC)。重点考察了蒸汽爆破预处理对针叶木化学浆的形态的影响,结果表明,针叶木化学浆原料经过蒸汽爆破预处理和机械研磨后,聚合度下降,纤维的长度下降明显,但并没有达到MFC的水平(要求纤维宽度小于100nm),因此可能还需要经过进一步的加工处理如高压均质化,才能最终制备得到MFC。The softwood chemical pulp fibers was pretreated by steam explosion,expecting to prepare MFC（ Microfibrillated cellulose） in a high efficiency,economy and environment friendly way. In this paper,we focuse on the effect of steam explosion pretreatment on the morphology of softwood chemical pulp,the results showed that polymerization degree of fibers declined,and the length of the fiber decreased significantly after steam explosion pretreatment and mechanical grinding,but the fibers did not reach the level of the MFC,which therefore may need further processing,such as high pressure homogenization.

关 键 词：蒸汽爆破 针叶木化学浆 形态 MFC 

分 类 号：TS743.9[轻工技术与工程—制浆造纸工程]