Enhanced electrothermal effect of carbon fibrous composites decorated with high conductive carbon nanotube webs  

作　　者：Bingcheng WANG Xu FENG Ling LIU 

机构地区：[1]School of Aerospace Engineering&Applied Mechanics,Tongji University,Shanghai 200092,China

出　　处：《Chinese Journal of Aeronautics》2021年第11期243-253,共11页中国航空学报（英文版）

基　　金：supported by the National Natural Science Foundation of China (No. 11772233)。

摘　　要：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 50–150mA, when compared to the base-CFRP. Also, the surface temperature of CNT webs decorated CFRP can be improved by 20.5–32.3℃ within 3min showing a self-heating rate of 6.8–10.8℃/min just with an applied voltage of 20–30V, increased by 152%-177% when compared to the base-CFRP(2.7–3.9℃/min). Also, deicing can be finished within 4–10min with a voltage of 18V and an input power of 246W/m^(2). 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.

关 键 词：Composites Carbon Fiber Reinforced Plastics(CFRPs) Carbon nanotubes Electrical conductivity Electrothermal effect DEICING 

分 类 号：V25[一般工业技术—材料科学与工程]