Enhanced electrothermal effect of carbon fibrous composites decorated with high conductive carbon nanotube webs
Enhanced electrothermal effect of carbon fibrous composites decorated with high conductive carbon nanotube webs
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高导电碳纳米管网装饰碳纤维复合材料的增强电热效应
DOI：
10.1016/j.cja.2021.04.016
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发表时间：
2021-05
影响因子：
5.7
通讯作者：
Liu Ling
中科院分区：
文献类型：
--
作者：
Wang Bingcheng;Feng Xu;Liu Ling
文献表明，碳纳米管（CNTs）可以极大地提高纤维复合材料的导电性和基体主导的力学性能。然而，碳纳米管对碳纤维增强塑料（CFRPs）的电热耦合效应很少被考虑。这项工作制备并引入薄而多孔的碳纳米管网到CFRP的表面或/和界面，以提高其电热性能。结果表明，在50-150 mA的电流范围内，碳纳米管网可以使CFRP的横向电导率提高231% ~ 519%，与基CFRP相比。此外，CFRP装饰的碳纳米管网的表面温度可以在3分钟内提高20.5-32.3°C，显示出在20-30 V的电压下，自热率为6.8-10.8°C/min，与基材CFRP（2.7-3.9°C/min）相比，增加了152% - 177%。在18v电压和246w /m2输入功率下，4 ~ 10min即可完成除冰。电热过程对CFRP的力学性能几乎没有负面影响。碳纤维布装饰碳纳米管网具有较低的除冰输入功率和较短的除冰响应时间，有可能成为新一代的航空除冰结构。
Literature has demonstrated that Carbon Nanotubes (CNTs) can greatly enhance the electrical conductivity and matrix-dominated mechanical properties of fibrous composites. However, electrothermal coupling effect of CNTs on Carbon Fiber Reinforced Plastics (CFRPs) has scarcely been considered. This work prepared and introduced thin and porous CNT webs to the surface or/and interface of a CFRP to enhance its electrothermal properties. The results show that CNT webs can enhance the transverse electrical conductivities of the CFRP by 231%−519% in a current range of 50–150 mA, when compared to the base-CFRP. Also, the surface temperature of CNT webs decorated CFRP can be improved by 20.5–32.3 °C within 3 min showing a self-heating rate of 6.8–10.8 °C/min just with an applied voltage of 20–30 V, increased by 152%−177% when compared to the base-CFRP (2.7–3.9 °C/min). Also, deicing can be finished within 4–10 min with a voltage of 18 V and an input power of 246 W/m2. Moreover, the electrothermal processes nearly have no negative effect on the mechanical properties of the CFRP. The relatively low input power and short response time for deicing make the CNT webs decorated CFRP may be a potential new generation for aeronautical deicing structure.
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影响因子：
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作者：
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