CNC、CNF及BC对纸张加固效果的比较研究  

A Comparative Study on Paper Strengthening Performance of CNC,CNF,and BC

作　　者：李艳丽 邢惠萍 李玉虎 LI Yanli;XING Huiping;LI Yuhu(School of Materials Science and Engineering,Engineering Research Center of Historical Cultural Heritage Conservation,Ministry of Education,Shaanxi Normal University,Xi'an,Shaanxi,710119)

机构地区：[1]陕西师范大学材料科学与工程学院,历史文化遗产保护教育部工程研究中心,陕西西安710119

出　　处：《中国造纸学报》2021年第3期81-86,共6页Transactions of China Pulp and Paper

基　　金：陕西省重点研发计划(2020SF-358);中央高校基本科研业务费(GK201903054)。

摘　　要：采用X射线衍射、接触角、紫外可见光谱、热分析等手段对纤维素纳米晶体(CNC)、纳米纤丝化纤维素(CNF)、细菌纤维素(BC)3种纳米纤维素性能进行表征,分别采用这3种纳米纤维素分散液处理纸样,以研究它们对纸样的加固效果。结果表明,与CNC和CNF相比,BC具有结晶度高、成膜后致密性好,热稳定性、透光性及强度性能好的优点;3种纳米纤维素均能对纸样起到一定的加固效果,其中BC能大幅度提高纸样的强度性能,且对纸样颜色的改变程度较小。The properties of cellulose nanocrystal(CNC),cellulose nanofiber(CNF),and bacterial cellulose(BC)were characterized by Xray diffraction,contact angle analysis,UV-VIS-NIR spectrometer,and thermal analysis(TG).The paper samples were treated with these three nano-cellulose dispersions to study their reinforcement effect on the paper.The results showed that compared with CNC and CNF,BC had the advantages of high crystallinity,good film compactness,high thermal stability,high light transmittance,and good mechanical properties.The three kinds of nano-cellulose could strengthen the paper,in which BC could greatly improve the mechanical properties of the paper and have slight impact on paper color.

关 键 词：纤维素纳米晶须 纳米纤丝化纤维素 细菌纤维素 纸张加固 

分 类 号：TS761[轻工技术与工程—制浆造纸工程] TQ079[化学工程]