有机酸法玉米秸秆皮浆短流程TCF漂白特性  

TCF Short Sequence Bleaching of Organic Acid Corn Stalk Rind Pulp

作　　者：黄萍[1] 马干平[1] 翟华敏[1] 李志勇[1,2] 张燕 喻力 

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]芬欧汇川亚洲研发中心,江苏常熟215536

出　　处：《中国造纸》2012年第12期6-10,共5页China Pulp & Paper

基　　金：江苏省科技创新与成果转化专项(BE2010069);江苏省科技创新与成果转化专项(BE2010689)

摘　　要：选择短流程漂白技术对有机酸法玉米秸秆皮浆(OABCSRP)进行漂白,研究了碱处理(E)、压力H2O2(PO)和H2O2(P)及其组合漂白工艺对OABCSRP浆特性的影响。结果表明,碱处理对OABCSRP浆脱木素选择性高,是后续漂白的重要基础,当用碱量4.0%时,浆的得率为95.4%、脱木素率为23.5%、黏度为115 mPa.s、亮度为44.2%;短流程E(PO)漂白可作为中高白度文化用纸浆料的漂白,在E段用碱量4.0%、PO段H2O2用量为2.0%时,可获得得率87.6%、黏度53.5 mPa.s、亮度79.9%的漂白浆,E(PO)漂白浆具有较好的打浆和纸张性能;短流程E(PO)P漂白在H2O2总用量为2.5%时,可获得得率为86.4%、黏度为59.6 mPa.s、亮度为82.7%的漂白浆。To investigate environmentally-friendly total-chlorine-free （TCF） short sequence bleaching of organic acid corn stalk rind pulp, E（PO） bleaching and E（PO） P bleaching were studied. The results indicated that alkaline extraction（E） was a process with a good selectiv- ity of delignification, and was beneficial to subsequent bleaching processes. When NaOH dosage was 4.0% in E stage, the pulp yield, del- ignification rate, pulp viscosity and brightness were 95.4%, 23.5%, 115 mPa. s and 44.2%, respectively. For short sequence E（ PO ） al- kaline extraction and pressurized hydrogen peroxide bleaching, bleached pulp with 87.6% yield, 53.5 mPa.s viscosity and 79.9% bright- ness could be obtained while NaOH dosage of E stage was 4.0% and I-I202 dosage of （PO） stage was 2.0% ; the E（PO） bleached pulp showed good beating and papermaking performances, and could be used for medium-to-high grade fine papers. The E（PO） P bleaching se- quence, when the total H202 dosage was 2.5%, could lead to 86.4% of pulp yield, 59.6 mPa＇s of pulp viscosity, and 82.7% of pulp brightness; the E （PO）P bleached pulp could be used for high grade fine paper.

关 键 词：有机酸法浆 玉米秸秆 碱处理 短流程 TCF漂白 

分 类 号：TS745[轻工技术与工程—制浆造纸工程]