三倍体毛白杨化学浆电化学漂白研究  

Electrochemical bleaching on chemical pulp of Tripoid Porpulus Tomentosa

作　　者：赵强[1] 蒲俊文[1] 周舒珂[1] 邢勉[1] 张平冬[1] 

机构地区：[1]北京林业大学材料科学与技术学院,北京100083

出　　处：《中华纸业》2009年第3期50-53,共4页China Pulp & Paper Industry

基　　金：林业科技支撑计划(2006BAD18B0502)与国家林业局专项(2002-66)共同资助项目。

摘　　要：研究了碱性条件下三倍体毛白杨化学浆K3Fe(CN)6催化电化学漂白工艺,确定了漂白工艺最佳条件为:用碱量2%,漂白时间40min,漂白温度80℃,K3Fe(CN)6用量12mmol/L。对比电化学漂白前后浆的红外谱图发现,电化学漂白过程中木素的苯环骨架结构变化不大;木素间的连接出现断裂;漂白后残余木素的羧基及非共轭羰基增多,紫丁香型木素脱除明显。The electrochemical bleaching processes on AS pulp of Triploid Populus Tomentosa were studied, the optimal conditions of bleaching process were confirmed that NaOH dosage 2%, K3Fe（CN）6 dosage 12mmol/L, at 80℃ and 40 rain. The infrared spectrums of unbleached and bleached pulp were analyzed. The benzene skeleton of lignin were not significantly destroyed, linkage between lignin were broken after electrochemical bleaching. Carboxyl and non-conjugated carbonyl groups were increased and lilac type lignin were removed during bleaching.

关 键 词：电化学漂白 铁氰化钾 三倍体毛白杨 

分 类 号：TS745[轻工技术与工程—制浆造纸工程] TS721.1