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Synthesis of Fe3O4/polypyrrole/polyaniline nanocomposites by in-situ method and their electromagnetic absorbing properties
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نویسنده
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li b. ,weng x. ,wu g. ,zhang y. ,lv x. ,gu g.
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منبع
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journal of saudi chemical society - 2017 - دوره : 21 - شماره : 4 - صفحه:466 -472
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چکیده
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Fe3o4/ppy/pani (fe3o4/polypyrrole/polyaniline) nanocomposites with excellent microwave absorbing properties have been successfully synthesized and characterized systematically. in detail,fe3o4 nanoparticles were prepared via an environmental friendly,modified co-precipitation method. afterward,two conductive polymers,ppy and pani,were deposited onto the surface of fe3o4 nanoparticles by in-situ polymerization of pyrrole and aniline. ppy and pani was “glued” by the strong affinity between the carbonyl groups of ppy and the conjugated chains of pani. the obtained fe3o4/ppy/pani nanocomposites have been found to possess excellent microwave absorbing property with the absorption bandwidth of 10.7 ghz (6.7–17.4 ghz) and maximum reflection loss at 10.1 ghz (−40.2 db). it proves that the combination of ultra-small fe3o4 nanoparticles with two different conductive polymers have a great potential in the application of microwave absorbing materials. © 2016 king saud university
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کلیدواژه
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Electromagnetic property; Nanocomposites; Synthesis
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آدرس
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key laboratory of science and technology on electromagnetic effects and electro-optical engineering,pla university of science & technology, China, key laboratory of science and technology on electromagnetic effects and electro-optical engineering,pla university of science & technology, China, wuxi joint logistics center, China, nantong qiurun nanotechnology company, China, key laboratory of science and technology on electromagnetic effects and electro-optical engineering,pla university of science & technology, China, department of materials science,fudan university, China
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Authors
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