Effects of different hot pressing processes and NFC/GO/CNT composite proportions on the performance of conductive membranes
Effects of different hot pressing processes and NFC/GO/CNT composite proportions on the performance of conductive membranes
复制标题
不同热压工艺及NFC/GO/CNT复合比例对导电膜性能的影响
DOI：
10.1016/j.matdes.2020.109334
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发表时间：
2021-01
影响因子：
8.4
通讯作者：
Quanping Yuan
中科院分区：
文献类型：
--
作者：
Haojie Zou;Xinpu Li;Yuanqiao Zhang;Zining Wang;Bing Zhuo;Pu Ti;Quanping Yuan
在这项研究中，纳米原纤化纤维素（NFC）和氧化石墨烯（GO）作为分散剂和粘合剂，有效地分散和组装碳纳米管（CNT）通过超声分散。采用低温高效热压工艺，结合干燥、还原、致密化的协同效应，制备了NFC/rGO（reduced graphene oxide）/CNT导电复合膜，该复合膜具有良好的导电性、力学性能和热稳定性。复合膜（NFC：GO：CNT的质量比为2：4：4）在170 °C下在3 MPa下热压30 min后，其薄层电阻降低率达到61.1%（从19.8 ± 3.1 Ω sq. -1降低到7.7 ± 1.1 Ω sq. -1），而其杨氏模量从1496.3 ± 250.9 MPa增加到3178.3 ± 356.2 MPa。低温热压可以减少GO上的含氧基团，从而使碳氧比从2.28增加到5.05。该方法有助于在复合膜中构建导电网络，为提高低维碳复合膜的性能提供了一种新的策略。
In this study, both nanofibrillated cellulose (NFC) and graphene oxide (GO) as dispersant and binder, were employed to effectively disperse and assemble carbon nanotube (CNT) via ultrasonic dispersion. A NFC/rGO (reduced graphene oxide)/CNT conductive composite membrane was prepared via a low-temperature and efficient hot pressing treatment with the synergistic effect of drying, reduction, and densification, which exhibited good conductivity, mechanical performance, and thermal stability. After the composite membrane (mass ratio of NFC:GO:CNT was 2:4:4) was hot pressed under 3 MPa at 170 °C for 30 min, its sheet resistance reduction rate reached to 61.1% (decreased from 19.8 ± 3.1 Ω sq.−1to 7.7 ± 1.1 Ω sq.−1), while its Young's modulus increased from 1496.3 ± 250.9 MPa to 3178.3 ± 356.2 MPa. Hot pressing at the low temperature can reduce oxygen-containing groups on GO, by which the carbon-to‑oxygen ratio was increased from 2.28 to 5.05. The presented controllable method helps to construct a conductive network in the composite membrane, and provides a new strategy to enhance performance of the low-dimensional carbon composite membrane.
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影响因子：
9.5
作者：
Ahmed, Abbas;Adak, Bapan;Mukhopadhyay, Samrat
通讯作者：
Mukhopadhyay, Samrat
影响因子：
3.7
作者：
Chao Zhang;Lulu Ren;Xiao-yan Wang;Tianxi Liu
通讯作者：
Chao Zhang;Lulu Ren;Xiao-yan Wang;Tianxi Liu
影响因子：
5.1
作者：
Aitomaki, Yvonne;Oksman, Kristiina
通讯作者：
Oksman, Kristiina
DOI：
--
发表时间：
2016
期刊：
--
影响因子：
--
作者：
M. Österberg;Jari Vartiainen;J. Lucenius;Ulla Hippi;J. Seppälä;R. Serimaa;J. Laine
通讯作者：
M. Österberg;Jari Vartiainen;J. Lucenius;Ulla Hippi;J. Seppälä;R. Serimaa;J. Laine
影响因子：
10.9
作者：
Jun Yan;Tong Wei;Bo Shao;Fuqiu Ma;Zhuangjun Fan;Milin Zhang;Chao Zheng;Y. Shang;W. Qian
通讯作者：
Jun Yan;Tong Wei;Bo Shao;Fuqiu Ma;Zhuangjun Fan;Milin Zhang;Chao Zheng;Y. Shang;W. Qian