Soda-AQ苇浆强化氧漂机理的研究  

The Mechanism of Reinforced Oxygen Bleaching of Soda AQ Reed Pulp

作　　者：邱玉桂[1] 陈晓军[1] 孙凌虹[1] 郑志彤[1] 窦正远[1] 

机构地区：[1]华南理工大学制浆造纸工程国家重点实验室,广州510640

出　　处：《中国造纸学报》1999年第B10期50-56,共7页Transactions of China Pulp and Paper

基　　金：国家自然科学基金!资助课题29477268

摘　　要：用X射线衍射法和傅立叶变换红外光谱法(FTIR)进行SodaAQ法苇浆的强化氧气漂白机理研究。结果表明,经硫酸预处理,过氧化氢强化氧漂(AOp)及过氧乙酸强化氧漂(APaO)均比常规氧漂能更有效地降解浆中的残留木素,又能较好地保护碳水化合物。X射线衍射法和FTIR法均能很好地反映苇浆纤维素的结晶结构在漂白过程中的变化。所有浆样的纤维素均属纤维素Ⅰ晶态;101面峰与101-面峰重迭;垂直002面的晶粒尺寸略小于棉花纤维素的晶粒。The mechanism of reinforced oxygen bleaching of Soda AQ reed pulp was investigated by means of FT IR and X ray diffraction analyses. The results show that more effective deligninfication can be obtained with reinforced oxygen bleaching, and the resulted bleached pulp exhibits more stable viscosity properties.IR absorption spectra can reflect the changes in cellulose crystallinity in a manner very much similar to that observed with the X ray diffraction analyses. In our experiments, all cellulosic samples are cellulose I. The (101 -) peak overlaps the (101) peak. The lattice dimensions of reed pulp cellulose are slightly shorter than that of cotton cellulose.

关 键 词：苇浆 氧漂 AQ 氧气漂白 酸预处理 木素 结晶结构 X-射线衍射法 强化 硫酸 

分 类 号：TS745[轻工技术与工程—制浆造纸工程] TS761.6