摘要
本研究以江西产楠竹为原料用烧碱法、硫酸盐法、添加蒽醌硫酸盐法在温度160℃，碱度16％和硫化度25％下蒸煮，比较研究这三种碱法蒸煮条件下得到的木质素酚化改性潜力及浆料性质。在温和的蒸煮条件下，木质素表现出较大的酚化改性潜力，浆料虽然Kappa值偏高（35～40），但粗浆得率高（55％-59％），在立式磨浆机处理条件下与商业漂白浆相比具有更容易控制长度、宽度和长宽比的特点。本研究为如何实现竹材全成分有效利用及如何控制竹浆纤维长短提供可参考的基础数据。
Nanzhu （Phyllostachys pubescens） grew in Jiangxi province was used as raw material. Three kinds of pulping conditions AP, KP, and AQ added KP were tried out at temperature 160 ℃, under alkalinity 16%, and sulfidity 25 %. The alkaline lignins collected from black liquors had great potential to be converted into lignophenols through phase separation system. Although the Kappa number of 35 -40 was higher than usual in these conditions, the yields of unscreened yield were high of 55% -59%. Under the condition of the disc mill with water, the pulps were easy to control the length, width and the characteristics of aspect ratio when compared with the bleached commercial pulps. It provided basic data for how to improve the full compositions utilization of bamboo and how to control the pulp fiber length according to the need in composites fields.
出处
《广州化工》
CAS
2013年第23期5-7,共3页
GuangZhou Chemical Industry
基金
2012年度大学生实践创新训练计划省级指导项目
国家自然科学基金(51203075)
关键词
碱法蒸煮
木质素
竹浆纤维
长度
宽度
Key words ： alkaline pulping
lignin
bamboo pulp fibers
length
width
