构皮浆弱碱性过氧化氢漂白工艺研究  

Study on Alkalescent Hydrogen Peroxide Bleaching Process of Broussonetia Papyrifera Bark Pulp

作　　者：刘江 侯敏杰 胡永康 刘传富 张春辉 蓝武 LIU Jiang;HOU Minjie;HU Yongkang;LIU Chuanfu;ZHANG Chunhui;LAN Wu(School of Light Industry and Engineering,South China University of Technology,Guangzhou,Guangdong Province,510640)

机构地区：[1]华南理工大学轻工科学与工程学院,广东广州510640

出　　处：《中国造纸》2025年第1期128-140,共13页China Pulp & Paper

基　　金：国家重点研发计划(2022YFF0904500)。

摘　　要：本研究以实验室自制构皮浆为原料,使用Na_(2)CO_(3)-H_(2)O_(2)工艺进行漂白实验,分别探究了H_(2)O_(2)用量、反应时间、反应温度对构皮浆漂白效果的影响。为了提高最优工艺参数的精准度,对Na_(2)CO_(3)-H_(2)O_(2)工艺进行响应面法优化。结果表明,在H_(2)O_(2)用量2.9%、反应时间87 min、反应温度82℃的条件下,构皮浆白度达76.6%,聚合度从未漂浆的2704下降至1886。与现有书画纸用构皮浆的次氯酸盐工艺及NaOH-H_(2)O_(2)工艺相比,Na_(2)CO_(3)-H_(2)O_(2)工艺对纤维损伤更小,漂白效率更高。以Na_(2)CO_(3)-H_(2)O_(2)工艺制备的构皮浆具有白度稳定、物理强度高、耐老化性能更好、所抄纸张润墨性能良好等优点。In this study,Na_(2)CO_(3)-H_(2)O_(2)process was taken with lab-made Broussonetia papyrifera bark pulp as raw material,the effects of H_(2)O_(2)dosage,reaction time,and reaction temperature on the bleaching effect of Broussonetia papyrifera bark pulp were investigated,respectively.In order to improve the precision of the optimum process parameters,Na_(2)CO_(3)-H_(2)O_(2)process was optimized by response surface method.The results showed that the whiteness of the Broussonetia papyrifera bark pulp reached 76.6%,and the polymerization degree decreased from 2704 of unbleached pulp to 1886,with the H_(2)O_(2)dosage of 2.9%,reaction time for 87 min,and reaction temperature at 82℃.Comparing to hypochlorite process and NaOH-H_(2)O_(2)process of Broussonetia papyrifera bark pulp,Na_(2)CO_(3)-H_(2)O_(2)process had less fiber damage and higher bleaching efficiency.The Broussonetia papyrifera bark pulp prepared by Na_(2)CO_(3)-H_(2)O_(2)process had some advantages,such as stable white⁃ness,high physical strength,and better aging resistance,and the paper prepared by bleached pulp had better ink moistening performance.

关 键 词：构皮浆 H_(2)O_(2)漂白 Na_(2)CO_(3) 响应面 书画纸 

分 类 号：TS745[轻工技术与工程—制浆造纸工程]