纤维素纳米纤维对文化用纸性能的影响  

Effects of cellulosic nanofibrils on papermaking properties of fine papers

作　　者：邹艳洁 

出　　处：《中华纸业》2017年第4期61-66,共6页China Pulp & Paper Industry

摘　　要：纤维素纳米纤维是由盘磨生产而得不同细小纤维含量的产品。纤维素纳米纤维在实验室和中试纸机可用作造纸的添加剂,实验室抄片研究显示:随着纤维素纳米纤维的加入,纸页的强度性能和表面性能提高,且纸页性能随着纳米纤维中细小纤维的含量增加而提高。可以通过调整一定纳米纤维含量下不同细小纤维含量而获得所需的纸页性能。在中试规模的试验中,纳米纤维在保持其他纸页性能的同时提高了纸页的灰分含量,强度性能和表面性能随着纳米纤维用量的增加而提高,对纸料的滤水性能有负面的影响。在较高的纳米纤维加入量下,纸机的运行性能良好,滤水速度下降,加入纳米纤维可提高出压榨部湿纸页的干度。Cellulosic nanofibrils （CNF） were produced in a disk refiner, to various fines contents. This material was used as an additive to papermaking furnish at laboratory and pilot scales. Handsheets showed improved strength and surface properties with the addition of CNF. Properties also tended to improve with increasing fines content of CNF. Desired strength properties were achieved using CNF at different fines contents by adjusting the loading levels of CNF. On a pilot scale, CNF allowed an increased ash level while maintaining control properties. Strength and surface properties were generally enhanced with use of CNF, although drainage properties were adversely affected. Machine runnability was good, even at higher CNF dosages and slower drainage. CN F in the sheet appears to increase press solids.

关 键 词：纤维素纳米纤维(CNF) 添加剂 文化用纸 性能 中试 

分 类 号：TS711[轻工技术与工程—制浆造纸工程] TS727.6