Preparation of graphene/flaky carbonyl iron/polyurethane foam composites and research on their microwave absorption properties

Wang, Simin; Huang, Xuegong; Zhang, Wenling

doi:10.1007/s00339-021-04894-y

Cited by 8 publications

(3 citation statements)

References 48 publications

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“…Porous products with relatively uniform cells can also be obtained under certain conditions. The main formula is shown in Table . − …”

Section: Materials and Methodsmentioning

confidence: 99%

Research on the Development and Plugging Capacity of a Honeycomb Porous Lost-Circulation Material

Ren

et al. 2022

ACS Omega

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Reducing economic losses and protecting producing strata are important links in the process of oil and gas exploration and exploitation. The key to avoid these problems lies in reducing well leakage accidents in the process of exploitation, in which the correct selection of plugging materials plays a decisive role. In view of the low sealing strength, complex construction, difficulty in unblocking, and high cost of the bridge lost-circulation material (LCM) currently used in plugging, this paper demonstrates the development of a highly elastic honeycomb porous LCM in a targeted manner. Indoor evaluation of the material shows it has good compression resilience and tensile strength: its 50% compression permanent deformation is less than 10% and tensile strength is more than 100 kPa; its retention rate under acidic conditions is more than 97%; it is basically not acid soluble; and at 100 °C aging conditions, the abovementioned performance and properties are maintained in a good manner. Due to the rebound characteristics of the highly elastic honeycomb porous LCM, the material can smoothly enter into different fractures to achieve a good plugging effect under the condition of choosing a suitable size.

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“…Porous products with relatively uniform cells can also be obtained under certain conditions. The main formula is shown in Table . − …”

Section: Materials and Methodsmentioning

confidence: 99%

Research on the Development and Plugging Capacity of a Honeycomb Porous Lost-Circulation Material

Ren

et al. 2022

ACS Omega

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“…After the γ-ray radiation, the reduced GO was formed and the difraction peak is observed at around 2θ = 26.7 , which is derived from the short-range order of the graphene sheets. 27 With absorbed dose increasing, more Fe(CO) 5 was oxidized to be Fe 3+ , which leads the peak at the 2θ = 44 weaker (Figure S6). 37 The traces of the iron oxidation products with peak at 35.6 are also observed.…”

Section: Gamma-shielding Abilitymentioning

confidence: 99%

“…Moreover, it has been proved that combination of graphene and carbonyl iron could reinforce microwave absorption property and thermal conductivity than only CI used alone. 27,28 The conventional fabrication process of CI and GO nanocomposite is complicated casting and hot-pressing method with high energy consumption.…”

Section: Introductionmentioning

confidence: 99%

Enhancement of nuclear radiation shielding properties of silicone rubber with γ‐ray irradiation induced graphene oxide modified carbonyl iron powder hybrid fillers

Meng

Chai

et al. 2023

J of Applied Polymer Sci

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In this study the graphene oxide modified carbonyl iron (GO‐CI) was prepared by γ‐ray irradiation, which was added to silicone rubber composites to enhance the nuclear radiation shielding performances. X‐ray diffraction (XRD) characterization result showed the structure and morphology of the obtained GO‐CI nanocomposites. The mixture of GO/CI and the hybrid GO‐CI were individually incorporated into the vinyl‐terminated polydimethylsiloxane (Vi‐PDMS) to prepare referenced SR/GO/CI and SR/GO‐CI composites. Compared with SR/GO/CI, the SR/GO‐CI exhibited better thermal conduction and mechanical recovery properties. Moreover, the γ‐ray radiation shielding ability of SR/GO‐CI is much higher than that of pristine SR/GO/CI. CI particles are coated by GO nanosheets to increase surface area to prevent sedimentation of CI. It implies that SR‐GO/CI composite would have potential application as the radiation hardening material with thermal conductive and nuclear radiation shielding function.

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Electromagnetic and microwave absorption properties of tunable carbonyl iron absorbing materials prepared by self-composite treatment in 2–8 GHz band

Zhu

Xie²,

Wu³

et al. 2022

J Mater Sci: Mater Electron

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Preparation of graphene/flaky carbonyl iron/polyurethane foam composites and research on their microwave absorption properties

Cited by 8 publications

References 48 publications

Research on the Development and Plugging Capacity of a Honeycomb Porous Lost-Circulation Material

Research on the Development and Plugging Capacity of a Honeycomb Porous Lost-Circulation Material

Enhancement of nuclear radiation shielding properties of silicone rubber with γ‐ray irradiation induced graphene oxide modified carbonyl iron powder hybrid fillers

Electromagnetic and microwave absorption properties of tunable carbonyl iron absorbing materials prepared by self-composite treatment in 2–8 GHz band

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