玉米芯微纳米纤维素对提高纸张强度的应用研究  

Study on the Corncob MFC Application on Paper Strength Improvement

作　　者：周弋艳 ZHOU Yi-yan(Kemira Research Center Shanghai,Shanghai 201112,China)

机构地区：[1]凯米拉化学研究(上海)有限公司,上海201112

出　　处：《造纸化学品》2021年第2期14-20,共7页Paper Chemicals

摘　　要：通过实验研究了5种玉米芯微纳米纤维素(MFC)提高纸张强度的应用效果:在回收纤维中添加玉米芯微纳米纤维素,抄造手抄片,测定纸张最终的耐破强度和环压强度,比较不同特性的玉米芯微纳米纤维素对纸张强度提升的影响。结论是:(1)单独添加玉米芯微纳米纤维素,在15〜25 kg/t高用量的条件下,回收纤维的纸张强度可以得到较好的提高,耐破强度提高约15%,环压强度提高约10%;(2)配合使用凯米拉公司的干强剂乙二醛化聚丙烯酰胺(GPAM)和阳离子聚丙烯酰胺(CPAM),在2 kg/t的添加量下,继续添加玉米芯微纳米纤维素15 kg/t,纸张的耐破强度可以在此基础上再提高9%〜17%,环压强度可以再提高7%〜10%。The effect of five kinds of corncob MFC on improving paper strength was studied through experiments:adding corncob MFC to recycled fiber,making hand sheets,and testing the burst and RCT strength of the paper.Then the best dosing points was found out by comparing the results.Conclusions:(1)When dosing MFC as single component,at 15 to 25 kg/t,the strength of the handsheet had a better improvement,the burst index and RCT index improved 15%and 10%respectively;(2)When using two components system,CPAM or GPAM plus MFC,at 2+15 kg/t dosing,the burst index can further improved 9%to 17%,and the RCT index further improved 7%to 10%.

关 键 词：微纳米纤维素 纸张强度 干强剂 

分 类 号：TS721[轻工技术与工程—制浆造纸工程]