Graduate School of Life and Environmental Sciences, Osaka Prefecture University, 1-1 Gakuen-cho, Naka-ku, Sakai, 599-8531, Japan.
Research Institute for Sustainable Humanosphere, Kyoto University, Gokasho, Uji, 611-0011, Japan.
Carbohydr Polym. 2017 Sep 1;171:129-135. doi: 10.1016/j.carbpol.2017.05.012. Epub 2017 May 4.
We studied the nanostructure and physical properties of cellulose nanofiber-multi-walled carbon nanotube (CNF-MWNT) composite films prepared via MWNT aqueous dispersion using 4-O-methyl-α-d-glucuronoxylan as a MWNT dispersion aid. The composite film had high electrical conductivity (1.05S/cm), good mechanical properties (Young's modulus: 10.1GPa, tensile strength: 173.4MPa) and a low coefficient of thermal expansion (7ppm/K). FE-SEM imaging showed that the carbon nanotubes dispersed homogeneously and made reinforcing networks in the matrix of cellulose nanofibers. Improvement in the physical properties of cellulose nanofiber film by adding MWNTs is due to this composite structure.
我们研究了通过 MWNT 水溶液制备的纤维素纳米纤维-多壁碳纳米管（CNF-MWNT）复合膜的纳米结构和物理性能，其中 4-O-甲基-α-D-葡萄糖醛酸木聚糖作为 MWNT 的分散助剂。该复合膜具有高导电性（1.05S/cm）、良好的机械性能（杨氏模量：10.1GPa，拉伸强度：173.4MPa）和低热膨胀系数（7ppm/K）。FE-SEM 成像表明，碳纳米管均匀分散，并在纤维素纳米纤维基质中形成增强网络。通过添加 MWNTs 改善纤维素纳米纤维膜的物理性能归因于这种复合结构。
