Thin Electric Heating Membrane Constructed with a Three-Dimensional Nanofibrillated Cellulose⁻Graphene⁻Graphene Oxide System.
Thin Electric Heating Membrane Constructed with a Three-Dimensional Nanofibrillated Cellulose⁻Graphene⁻Graphene Oxide System.
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由三维纳米原纤化纤维素-石墨烯-氧化石墨烯体系构建的薄电热膜
DOI：
10.3390/ma11091727
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发表时间：
2018-09-14
期刊：
影响因子：
--
通讯作者：
Yuan Q
中科院分区：
文献类型：
--
作者：
Shao C;Zhu Z;Su C;Yang S;Yuan Q
利用纳米纤维(NFC)和氧化石墨烯(GO)对石墨烯的增强和成膜作用，制备了一种新型的可控散热的薄电加热膜。在水分散体系中，GO和NFC表面存在负电荷，这有助于石墨烯片层的均匀分布。该膜具有良好的层状结构，GO与NFC之间存在三维相互作用，并嵌入石墨烯片层。电导率被表征为石墨烯含量的函数，从而通过调整石墨烯的比例来控制加热功率。随后的电热测试可以去除GO和石墨烯片材上的不规则性，进一步改善层压结构。膜表面温度随时间呈指数增长规律。在相同的功率密度和时间下，膜的稳定温升随膜质量的增加而增大，表现为功率密度的线性函数关系。低质量膜(1和4g·m−2)也表现出规则甚至稳定的温升。膜的结构和加热性能，以及焦耳加热引起的变化，将推动其应用。
Nanofibrillated cellulose (NFC) and graphene oxide (GO) with reinforcing and film-forming properties were employed with graphene to develop a novel and thin electric heating membrane with heat dissipation controllability. A negative charge was found on the surface of GO and NFC in aqueous dispersions, which contributed to the homogeneous distribution of the graphene sheets. The membrane had a good laminated structure with three-dimensional interaction between GO and NFC, with embedded graphene sheets. Conductivity was characterized as a function of the amount of graphene, thus giving control over to the heating power by adjusting the ratio of graphene. Subsequent electric heating tests can remove irregularities on the GO and graphene sheet, improving the laminated structure further. The temperature on the surface of the membrane presented an exponential increasing regularity with time. Under the same power density and time, the stabilized temperature rise of membranes was higher when grammage was higher, which was characterized by the linear function of the power density. Low-grammage membranes (1 and 4 g·m−2) also exhibited regular and even stabilized temperature rises. The indicated structure and heating performance of the membrane, as well as the variation induced by Joule heating, would drive its applications.
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影响因子：
9.5
作者：
Fei, Fan;Cseri, Levente;Blanford, Christopher F.
通讯作者：
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影响因子：
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作者：
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影响因子：
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作者：
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影响因子：
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作者：
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通讯作者：
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DOI：
10.1016/j.ijbiomac.2017.11.054
发表时间：
2018-04-01
影响因子：
8.2
作者：
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通讯作者：
Ravichandran, Ramanibai