文献类型：期刊文献

中文题名：交联剂用量对纳米纤维素交联气凝胶结构的影响

英文题名：Influences of Crosslink Usage on Structure of Nanocellulose Cross-linked Aerogels

作者：吕少一[1] 陈艳萍[1] 韩申杰[1] 郭丽敏[1] 王思群[1,2] 陈志林[1]

第一作者：吕少一

机构：[1]中国林科院木材工业研究所,国家林业局木材科学与技术重点实验室,北京100091;[2]美国田纳西大学再生碳中心,诺克斯维尔37996

年份：2017

卷号：31

期号：6

起止页码：10-14

中文期刊名：木材工业

外文期刊名：China Wood Industry

收录：CSTPCD;;北大核心:【北大核心2014】；

基金：中央级公益性科研院所基本科研业务费专项基金“木基纳米电极材料的储能机理与应用研究”(CAFINT2014K02);林业公益性行业科研专项“纳米纤维素绿色制备和高值化应用技术研究”(201504603)

语种：中文

中文关键词：气凝胶;纤维素纳米晶体;木浆纤维;交联剂;制备;结构

外文关键词：aerogels;cellulose nanocrystal;wood pulp fiber;crosslinker;preparation;structure

分类号：S781.7;TQ351

摘要：以1,2,3,4-丁烷四羧酸(BTCA)为交联剂,制备木浆纤维(WPF)/纤维素纳米晶体(CNC)交联气凝胶,探讨交联剂用量对气凝胶的微观形貌、化学结构、晶型结构、孔隙结构的影响规律。结果表明:气凝胶由WPF/CNC相互交织形成三维网络结构,且在WPF周围环绕CNC形成纳米纤维;BTCA交联对气凝胶的结构影响显著,用量增加可致气凝胶的结晶度、比表面积和孔容减小。
In order to develop functional aerogel materials, wood pulp fiber（WPF）/cellulose nanocrystals（CNC） crosslinked aerogels were prepared by using 1, 2, 3, 4-butanetetracarboxylic acid（BTCA） as the crosslinking material. The authors then investigated the degree of cross-linking due to morphology,specific surface area, pore structure, crystallization and chemical structure of the aerogels. The results showed that the aerogels had a three-dimensional network structure formed by intertwined WPF and CNC,and the WPF was surrounded by nanofibers formed by the CNC. BTCA crosslinking had a significant effect on the structure and properties of the aerogels. As the crosslinking material increased, crystallinity,specific surface area and pore volume of the aerogels decreased.