摘要
以细菌培养生成的细菌纤维素(BC)为基材,碳纳米管(CNTs)为导电填充物,通过简单的物理吸附法制备出了BC/CNTs纳米复合膜。利用扫描电子显微镜(SEM)、傅里叶红外变换光谱仪(FT-IR)、热重分析仪(TG)和四探针测试仪(FPT)对其形貌、结构、热学以及导电性能进行了表征。结果表明:CNTs均匀负载在BC膜上,CNTs的掺入使BC膜的热学性能得到很大改善;同时制备出的柔性纳米复合膜在不同弯曲角度下均具有很好的导电性能,导电率为0.32±0.003S/cm,且性能稳定。这表明合成的纳米复合膜可作为柔性基材在生物传感器、超级电容器及其锂电材料等领域得到很好应用。
BC/CNTs nanocomposite films were prepared by a simple physical adsorption method using biosynthesized bacterial cellulose(BC)as a substrate and carbon nanotubes(CNTs)as conductive fillers.Scanning electron microscope(SEM),fourier transform infrared spectroscopy(FT-IR),thermogravimetric analyzer(TG)and four-probe tester(FPT)were used to characterize their morphology,structure,thermal and electrical properties.The results showed that the CNTs were uniformly supported on the BC film,and the incorporation of CNTs greatly improved the thermal properties of the BC film.Meanwhile,the prepared flexible nanocomposite films had good electrical conductivity at different bending angles.The conductivity was about 0.32±0.003S/cm,and the performance was stable.This indicated that the film can be wildly used as a flexible substrate in the fields of biosensors,supercapacitors and lithium battery materials.
作者
陆可钰
吕鹏飞
Lu Keyu;Lv Pengfei(State Key Laboratory of Food Science and Technology,Jiangnan University,Wuxi 214122;Key Laboratory of Eco-Textiles,Jiangnan University,Wuxi 214122)
出处
《化工新型材料》
CAS
CSCD
北大核心
2019年第12期87-90,共4页
New Chemical Materials
基金
国家自然科学基金（51641303）
江苏省自然科学基金青年项目（BK20150155）
关键词
细菌纤维素
碳纳米管
柔性
纳米复合膜
导电率
bacterial cellulose
carbon nanotube
flexibility
nanocomposite film
conductivity
