TY - JOUR
T1 - Covalently bonded polyaniline/graphene composites as high-performance electromagnetic (EM) wave absorption materials
AU - Yan, Jing
AU - Huang, Ying
AU - Wei, Chao
AU - Zhang, Na
AU - Liu, Panbo
N1 - Publisher Copyright:
© 2017 Elsevier Ltd
PY - 2017/8/1
Y1 - 2017/8/1
N2 - In this work, the polyaniline nanorods/graphene sheets composites with covalent bond were synthesized through in-situ polymerization of aniline in the presence of amino-functionalized graphene sheets (AFG), in which polyaniline (PANI) polymerization is initiated by those amino groups on graphene. The chemical bonding between graphene and PANI is confirmed by several analytical techniques, including Fourier transform infrared spectra (FTIR), X-ray diffraction (XRD), Raman spectroscopy, X-ray photoelectron spectroscopy (XPS), field emission scanning electron microscope (FESEM) and thermogravimetric analysis (TGA). The microwave-absorbing properties of the composites were measured by a vector network analyzer. The electromagnetic data demonstrates that the maximum reflection loss of covalently bonded PANI-AFG can reach −51.5 dB at 11.2 GHz, and the absorption bandwidths exceeding −10 dB are 4 GHz with thickness of 2.5 mm. The results indicate that the hybrid composites with enhanced microwave absorption properties and lightweight have a promising future in decreasing electromagnetic wave irradiation.
AB - In this work, the polyaniline nanorods/graphene sheets composites with covalent bond were synthesized through in-situ polymerization of aniline in the presence of amino-functionalized graphene sheets (AFG), in which polyaniline (PANI) polymerization is initiated by those amino groups on graphene. The chemical bonding between graphene and PANI is confirmed by several analytical techniques, including Fourier transform infrared spectra (FTIR), X-ray diffraction (XRD), Raman spectroscopy, X-ray photoelectron spectroscopy (XPS), field emission scanning electron microscope (FESEM) and thermogravimetric analysis (TGA). The microwave-absorbing properties of the composites were measured by a vector network analyzer. The electromagnetic data demonstrates that the maximum reflection loss of covalently bonded PANI-AFG can reach −51.5 dB at 11.2 GHz, and the absorption bandwidths exceeding −10 dB are 4 GHz with thickness of 2.5 mm. The results indicate that the hybrid composites with enhanced microwave absorption properties and lightweight have a promising future in decreasing electromagnetic wave irradiation.
KW - Covalent bond
KW - Electromagnetic wave absorption properties
KW - Graphene oxide
KW - Polyaniline
UR - http://www.scopus.com/inward/record.url?scp=85018864083&partnerID=8YFLogxK
U2 - 10.1016/j.compositesa.2017.04.016
DO - 10.1016/j.compositesa.2017.04.016
M3 - 文章
AN - SCOPUS:85018864083
SN - 1359-835X
VL - 99
SP - 121
EP - 128
JO - Composites Part A: Applied Science and Manufacturing
JF - Composites Part A: Applied Science and Manufacturing
ER -