Vertically Aligned Silicon Carbide Nanowires/Boron Nitride Cellulose Aerogel Networks Enhanced Thermal Conductivity and Electromagnetic Absorbing of Epoxy Composites,Nano-Micro Letters

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Vertically Aligned Silicon Carbide Nanowires/Boron Nitride Cellulose Aerogel Networks Enhanced Thermal Conductivity and Electromagnetic Absorbing of Epoxy Composites
Nano-Micro Letters ( IF 31.6 ) Pub Date : 2022-04-30 , DOI: 10.1007/s40820-022-00863-z
Duo Pan _{1,

2} , Gui Yang ₁ , Hala M Abo-Dief ₃ , Jingwen Dong ₁ , Fengmei Su ₁ , Chuntai Liu ₁ , Yifan Li ₄ , Ben Bin Xu ₄ , Vignesh Murugadoss _{2,

5} , Nithesh Naik ₆ , Salah M El-Bahy ₇ , Zeinhom M El-Bahy ₈ , Minan Huang _{2,

9} , Zhanhu Guo ₂

Affiliation

Key Laboratory of Materials Processing and Mold (Zhengzhou University), Ministry of Education; National Engineering Research Center for Advanced Polymer Processing Technology, Zhengzhou University, Zhengzhou, 450002, People's Republic of China.
Integrated Composites Laboratory (ICL), Department of Chemical and Biomolecular Engineering, University of Tennessee, Knoxville, TN, 37996, USA.
Department of Chemistry, College of Science, Taif University, P. O. Box 11099, Taif, 21944, Saudi Arabia.
Mechanical and Construction Engineering, Faculty of Engineering and Environment, Northumbria University, Newcastle upon Tyne, NE1 8ST, UK.
Advanced Materials Division, Engineered Multifunctional Composites (EMC) Nanotech LLC, Knoxville, TN, 37934, USA.
Department of Mechanical and Manufacturing Engineering, Manipal Institute of Technology, Manipal Academy of Higher Education, Manipal, Karnataka, 576104, India.
Department of Chemistry, Turabah University College, Taif University, P. O. Box 11099, Taif, 21944, Saudi Arabia.
Department of Chemistry, Al-Azhar University, Nasr City, Cairo, 11884, Egypt.
College of Materials Science and Engineering, Taiyuan University of Science and Technology, Taiyuan, 030024, People's Republic of China.

Cellulose aerogel with vertically oriented structure was obtained by constructing a vertically aligned SiC nanowires/BN network via the ice template assisted strategy.
The thermal conductivity of the composite in the vertical direction reaches 2.21 W m⁻¹ K⁻¹ at a low hybrid filler loading of 16.69 wt%, which was increased 890% compared to pure epoxy.
The composite exhibits good electrically insulating with a volume electrical resistivity about 2.35×10¹¹ Ω cm, and displays excellent electromagnetic wave absorption performance.