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Fabrication and characterization of polymer composites surface coated F e 3 O 4 / MWCNT s hybrid buckypaper as a novel microwave‐absorbing structure
Author(s) -
Lu Shaowei,
Ma Keming,
Wang Xiaoqiang,
Xiong Xuhai,
Xu Weikai,
Jia Caixia
Publication year - 2015
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.41974
Subject(s) - buckypaper , materials science , reflection loss , composite material , carbon nanotube , composite number , scanning electron microscope , absorption (acoustics) , microwave , physics , quantum mechanics
ABSTRACT A naval hybrid buckypaper was fabricated by vacuum filtration method with monodispersion solution of Fe 3 O 4 decorated Multiwalled carbon nanotubes (MWCNTs). The morphology, element composition and phase structure of hybrid buckypaper were characterized by field‐emission scanning electron microscope, energy dispersive spectrometer, and X‐ray diffraction. The microwave absorption and complex electromagnetic properties of the composites surface coated MWCNTs buckypaper (or Fe 3 O 4 /MWCNTs hybrid buckypaper) have been investigated in the frequency range of 8–18 GHz. The results indicate that the microwave absorption properties of composite structure have been evidently improved due to the Fe 3 O 4 /MWCNTs hybrid buckypaper' high magnetic loss and suitable dielectric loss properties. The reflection loss of composite surface coated Fe 3 O 4 /MWCNTs hybrid buckypaper (with a matching thickness d = 0.1 mm) is below −10 dB in the frequency range of 13–18 GHz, and the minimum value is −15.3 dB at 15.7 GHz. Thus, Fe 3 O 4 /MWCNTs hybrid buckypaper can become a promising candidate for electromagnetic‐wave‐absorption materials with strong‐absorption, thin‐thickness and light‐weight characteristics. © 2015 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2015 , 132 , 41974.