Green synthesis and enhanced microwave absorption property of reduced graphene oxide-SrFe12O19 nanocomposites

Zhao, Chengyun; Shen, Mengyao; Liu, Zhenxing; Sun, Rui; Xia, Ailin; Liu, Xianguo

doi:10.1016/j.jallcom.2016.08.078

Cited by 67 publications

(17 citation statements)

References 43 publications

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“…GO was prepared with the modified Hummers method . The separation of GO with other ions was conducted by centrifugation (at 8000 rpm for 10 minutes), and a well‐dispersed GO aqueous solution was obtained.…”

Section: Methodsmentioning

confidence: 99%

Improving the interfacial properties of carbon fiber–epoxy resin composites with a graphene‐modified sizing agent

Yan

et al. 2018

J of Applied Polymer Sci

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We successfully prepared a graphene-modified carbon fiber (CF) sizing agent with good dispersity and stability by dispersing reduced graphene oxide (RGO) into an emulsion-type sizing agent. RGO was obtained by the reduction of graphene oxide (GO) with the help of gallic acid. The influence of the graphene-modified sizing agent on the interfacial properties of the CF-epoxy resin composites was investigated with microbond testing and the three-point bending method. The results show that optimized interfacial properties were achieved when the size of the modified graphene was less than 1 μm, the content of RGO was 20 ppm, and the pH value of the sizing agent was 10.5. The interfacial shear strength of the composites reached 92.3 MPa, which was 29.6% higher than that of the composites with unmodified CFs. Compared with commercial-CF-fabric-reinforced composites, the interlaminar shear strength of the composites treated with the RGO-modified sizing agent increased by 21.5%. Both the interfacial and interlaminar failure morphologies of the composites were examined with scanning electron microscopy (SEM). The results show that a large amount of residual resin adhered to the surfaces of the CFs treated with the RGO-modified sizing agent; this indicated good interfacial properties between the CFs and the resin matrix.

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Section: Methodsmentioning

confidence: 99%

Improving the interfacial properties of carbon fiber–epoxy resin composites with a graphene‐modified sizing agent

Yan

et al. 2018

J of Applied Polymer Sci

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“…iron, cobalt and their oxides and carbonyl iron powder have good magnetism performance and show good magnetic loss than carbon materials. [10][11][12] However, metal materials have disadvantages, such as heavy weight, poor corrosion resistance and oxidation resistance, which make these materials unsuitable for aircrafts, missile and some special areas. In order to obtain outstanding EMW absorbing performance, carbon and metal composites have attracted significant attention.…”

Section: Accepted Manuscriptmentioning

confidence: 99%

Synthesis of sandwich microstructured expanded graphite/barium ferrite connected with carbon nanotube composite and its electromagnetic wave absorbing properties

Zhao

Jin

et al. 2017

Journal of Alloys and Compounds

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This is the author accepted manuscript. The final version is available from Elsevier via http://dx.doi.org/10.1016/j.jallcom.2017.04.070The pursuing aim of high reflection loss and broad frequency bandwidth for electromagnetic wave (EMW) absorbing materials is a long-term task and under a close scrutiny. To construct rational microstructures for the absorber have significant impacts on increasing reflection loss and broadening frequency bandwidth. Herein, we presented a sandwich microstructured expand graphite (EG)/BaFe12O19 (BF) nanocomposite successfully prepared by in-situ sol-gel auto-combustion method. The experimental results showed that EG/BF nanocomposite has better EMW absorbing performance than pure EG and BF, the sandwich microstructured EG/BF connected with carbon nanotubes (CNTs) could further improve the electromagnetic performance effectively. The obtained CNT/EG/BF nanocomposite exhibited a saturation magnetization of 26.5 emu g?1 at room temperature and an excellent EMW absorbing performance. The maximum reflection loss of the sandwich microstructured CNT/EG/BF composites with a thickness of 1 mm was up to ?45.8 dB and the frequency bandwidth below ?10 dB could reach to 4.2 GHz within the frequency range of 2?18 GHz. The research results indicated that the prepared nanocomposite showed great potential as a new type of microwave absorbing materialPeer reviewe

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“…Ferrite, as a dual-composite material, can generate both magnetic loss and dielectric loss, so it has good electromagnetic properties [10], but single ferrite has a higher density. The combination of RGO and ferrite to form complementary advantages: On the one hand, it has both magnetic loss and electrical loss, which is beneficial to achieve electromagnetic matching and improve absorbing performance; On the other hand, it is beneficial to reduce the density of the absorbing material [11]. Zheng et al synthesized Fe 3 O 4 -graphene composites, which has hydrophobicity and superparamagnetism.…”

Section: Introductionmentioning

confidence: 99%

Preparation and electromagnetic properties characterization of reduced graphene oxide/strontium hexaferrite nanocomposites

Chen

Hong

2020

Nanotechnology Reviews

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AbstractWith the rapid development of electronics and information technology, electronics and electrical equipment have been widely used in our daily lives. The living environment is full of electromagnetic waves of various frequencies and energy. Electromagnetic wave radiation has evolved into a new type of environmental pollution that has been listed by the WHO (World Health Organization) as the fourth largest source of environmental pollution after water, atmosphere, and noise. Studies have shown that when electromagnetic wave radiation is too much, it can cause neurological disorders. And electromagnetic interference will cause the abnormal operation of medical equipment, precision instruments and other equipment, and therefore cause incalculable consequences. Therefore, electromagnetic protection has become a hot issue of concern to the social and scientific circles.

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Green synthesis and enhanced microwave absorption property of reduced graphene oxide-SrFe12O19 nanocomposites

Cited by 67 publications

References 43 publications

Improving the interfacial properties of carbon fiber–epoxy resin composites with a graphene‐modified sizing agent

Improving the interfacial properties of carbon fiber–epoxy resin composites with a graphene‐modified sizing agent

Synthesis of sandwich microstructured expanded graphite/barium ferrite connected with carbon nanotube composite and its electromagnetic wave absorbing properties

Preparation and electromagnetic properties characterization of reduced graphene oxide/strontium hexaferrite nanocomposites

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