麦草化学机械浆漂白机理的研究  

Research on Bleaching Mechanism of Wheat Straw Chemi-mechanical Pulp

作　　者：李红斌[1,2] 房桂干[1] 耿光林 邓拥军[1] 李萍[1] 沈葵忠[1] 焦健[1] 韩善明[1] 张革仓 王勇 

机构地区：[1]中国林业科学研究院林产化学工业研究所,江苏南京210042 [2]山东晨鸣纸业集团股份有限公司博士后工作站,山东寿光262700

出　　处：《中国造纸》2011年第8期7-12,共6页China Pulp & Paper

摘　　要：对经碱性H2O2漂白以及NaBH4还原处理后麦草化学机械浆的木质素结构进行了分析研究。结果表明,麦草化学机械浆经碱性H2O2漂白后总羰基含量减少了26.4%,后续NaBH4还原处理后木质素中共轭羰基数量又减少了70.0%,漂白破坏了木质素中的发色基团。Lignin structures in wheat straw materials,its chemi-mechanical pulps,the pulps bleached with alkaline H2O2 and the pulps treated by H2O2/NaBH4 were determined in this paper.The results showed that conjugated carbonyl content in the lignin of H2O2 bleached chemi-mechanical pulp decreases by 26.4%,conjugated carbonyl in the lignin of the pulp treated by NaBH4 further decreases by 70.0%.The chromophore in the lignin is broken by bleaching,which improves the pulp brightness.

关 键 词：麦草化学机械浆 NABH4 H2O2漂白 麦草木质素 

分 类 号：TS745[轻工技术与工程—制浆造纸工程]