麦草氧碱蒸煮浆的低温压力过氧化氢漂白  

The Pressurized Hydrogen Peroxide Bleaching of Akaline-oxygen Pulps of Wheat Straw at Low Temperature

作　　者：陈双双[1] 杨旭 曹云峰[1] 杨洋[1] 刘祝兰[1] 

机构地区：[1]南京林业大学江苏省制浆造纸科学与技术重点实验室,江苏南京210037 [2]浙江省木业产品质量检测中心,浙江湖州313000

出　　处：《林产化学与工业》2012年第1期61-64,共4页Chemistry and Industry of Forest Products

基　　金：江苏省制浆造纸科学与技术重点实验室开放基金(201017);"江苏省青蓝工程中青年学术带头人培养对象"省教育厅资助课题(164105308)

摘　　要：对麦草在低温(85℃)下氧碱蒸煮,所得草浆在较低温度(80℃)下进行压力过氧化氢漂白。漂白后浆料卡伯值从17.9降至9.4～11.9;黏度比漂白前浆料黏度稍有增加,从1 042 mL/g增加到1 158～1 192 mL/g;纸浆白度(ISO)从37.1%升高至45.6%～60.6%,且与卡伯值之间具有一定的线性关系:白度增加=卡伯值降低×1.57;浆料得率在86.6%～89.5%之间,同时得率降低与卡伯值减少之间具有较为标准的线性关系:浆料得率降低=卡伯值降低×0.19。Wheat straw was cooked at low temperature （85 ℃ ） by alkaline-oxygen method, and the pulp was then bleached by hydrogen perxoide under pressure and low temperature （ 80 ℃ ）. We got the pulp with 86.6 % - 89.5 % yield after bleaching, and the pulp brightness was significantly risen to 45.6 % from 60.6 %. The Kappa number of bleached pulp dropped from 17.9 to 9.4-11.9, and interestingly, the pulp viscosity slightly increased from 1 042 mL/g to 1 158-1 192 mL/g,which is different from the traditional bleaching. The brightness has certain linear relationship with Kappa number ： brightness increment = Kappa number decrement 1.57 ; meanuhile there is a standard linear relationship between yield decrement and Kappa number decrement：yield decrement = Kappa number decrement x 0.19.

关 键 词：麦草 氧碱蒸煮 压力过氧化氢漂白 

分 类 号：TQ351[化学工程] TS749.7[轻工技术与工程—制浆造纸工程]