Materials Reports  2020, Vol. 34 Issue (Z2): 63-66 |
| INORGANIC MATERIALS AND CERAMIC MATRIX COMPOSITES |
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| Effect of Carbon Nanoparticles on Electrothermal-Mechanical Properties of Carbon Nanotubes Composites |
| WANG Xiaojun1,2, LIU Taiqi1
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1 Institute of Aerospace Materials, Beijing Institute of Petrochemical Technology, Beijing 102617, China
2 College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China |
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Abstract Apolyurethane based carbon nanotubes electro-thermal coatings were prepared by using carbon nanotubes (CNT) and polyurethane water solution. Nano carbon black (CB) was used as a modifier to investigate the effects of different CB loading on electrothermal-mechanical properties. The results show that, the tensile strength and elongation-at-break of the electrothermal coating films without CB modification increase and the resistivity decrease with increasing the content of CNT, however, the coating shows no temperature increasing, even the CNT content reaches to 19% under the condition of 220 V. The electrothermal properties of the electrothermal coating film has been greatly increased after introducing CB into the composites with the CNT in a content of 10%. The analytical results show that CB and CNT dispersed well in the composites. The tensile strength of the electrothermal coating films increase and elongation-at-break decrease with increasing the content of CB. The coating with a content of 5% CB shows an obviously temperature increasing, and the temperature reaches to 87.8 ℃ with a content of 7% CB under the condition of 220 V.
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Published: 08 January 2021
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| About author:: Xiaojun Wang received his bachelor's degree in engineering from Qingdao University of Science and Technology. He is currently pursuing his master's degree in Beijing University of Chemical Technology under the supervision Prof. Taiqi Liu. His research has focused on energy-saving materials.Taiqi Liu received his bachelor's and master's degree in Beijing Institute of Technology, obtained his doctor's degree in Changchun Institute of Applied Chemistry Chinese Academy of Sciences. He is currently a full professor in Beijing Institute of Petrochemical Technology and doctoral supervisor in Beijing University of Chemical Technology. His research interests include nano environmental purification material, aerospace material and energy-saving materials. |
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