Novel spatially distributed heating carbon fabric and decoupling of interfacial electricity

Abstract

Hybrid carbon fabrics consisted of three regions of full carbon, half carbon (vertical/horizontal), and non-carbon region were provided, which could realize spatially distributed heating and did not been previously reported. As a heating element, the carbon fabric exhibited high efficiency electro-thermal response, the equilibrium temperature of the full carbon region can reach 42°C within only 3 s at a low applied current of 0.2 A. In addition, the carbon fabric gives a significant resistance-temperature sensitivities of −0.303%/°C∼ −0.596%/°C. Moreover, the equivalent circuit model was established to decouple the interface electricity, including the specimen-electrode interfacial resistance (2 R i) of 7.4 Ω, and the contact resistance between orthogonal carbon fiber ( R ii) of 6.4 Ω. This paper provides a simple method to prepare spatially distributed heating fabric and the decoupling method can provide a more suitable selection for the development and analysis of interfacial electricity for carbon fiber and fabric.