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Fabrication and investigation on ternary heterogeneous MWCNT@TiO2-C fillers and their silicone rubber wave-absorbing composites

Ternary heterogeneous [email protected]2-C wave absorbent was firstly prepared, using glucose, MWCNT, and titanium isopropoxide as raw materials, through the solvothermal process followed by post-heat treatment. Afterwards, [email protected]2-C/silicone rubber wave-absorbing composites were fabricated via solution casting and subsequent curing process. XRD, Raman, XPS, and TEM analyses demonstrated the [email protected]2-C fillers were successfully synthesized with TiO2 and amorphous carbon coated on the surface of MWCNT. When the [email protected]2-C/silicone rubber wave-absorbing composites contained 25?wt% [email protected]2-C fillers and with the thickness of 2.5?mm, it displayed the minimum reflection loss of ?53.2?dB and an effective absorption bandwidth of 3.1?GHz. Remarkable wave-absorbing performances for [email protected]2-C/silicone rubber composites could be attributed to the synergetic effect of interfacial polarization loss and conduction loss.

» Author: Jia Zhao, Junliang Zhang, Lei Wang, Shanshan Lyu, Wenlong Ye, Ben Bin Xu, Hua Qiu, Lixin Chen, Junwei Gu

» Reference: 10.1016/j.compositesa.2019.105714

» Publication Date: 01/02/2020

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