The Characteristics of Conductive heating films fabricated by Few-walled nanotube and Conducting Natural graphite flakes

• Main Authors: Chia-Hsiang Wang, 王家祥
• Other Authors: Jau-Huai Lu
• Format: Others
• Language: zh-TW
• Published: 2018
• Online Access: http://ndltd.ncl.edu.tw/handle/hhb2p2

碩士 === 國立中興大學 === 機械工程學系所 === 106 === In this work, we have fabricated the new conductive heating films, and have discussed the heat transfer characteristics of conductive heating film. The films use the innovative carbon nanomaterials as the conductive substrates. The substrates contain polymeric dispersant、polymer material、the few-walled carbon nanotube(FWCNTs) and conducting natural graphite flakes(ultrafine carbon black, ufCB). This paper describes the preparation technology process of the few-walled carbon nanotube and dispersion and grinding of conductive heating ink in the method being used. The coating methods and the wet film curing treatments are described. Then, we will focus on the conductive heating film as mentioned above, the resistance measurement techniques of the conductive heating film will be discussed, and will begin the resistance analysis and life failure analysis, and the influence of process parameters on the temperature rise heating characteristics will be discussed in detail. Compared with the characteristics of the conventional wire heater, the conductive heating film has been found that the same advantages of medium-low temperature material can be obtained, which has excellent heat characteristics of flexible design and temperature homogeneity. In the life failure test, confirm whether the preliminary design of the conductive heating film can meet the requirements; in addition, according to the method of τ value obtained by the temperature rise experiment, it can be used to derive the temperature rise curve of the future product application, and use the uniform heating . The advantage is to confirm whether the application field for heater in water does not need to be stirred by the electric motor.