Excellent EMI shielding performance and thermal insulating properties in lightweight, multifunctional carbon-cenosphere composite foams

Kumar, Rajeev; Mondal, D.P.; Chaudhary, Amit; Shafeeq, M. Muhamed; Kumari, Saroj

doi:10.1016/j.compositesa.2018.07.003

Cited by 82 publications

(33 citation statements)

References 47 publications

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“…The CF substrate was prepared as per the previously described protocol [ESI †]. 15 The prepared CF samples were impregnated with 0.4 M nickel nitrate hexahydrate salt solution. The solution contained 0.3% (w/w) sodium dodecyl sulfate as the anionic surfactant to prevent agglomeration of the Ni-salt, and enhance the metal loading in CF.…”

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A nickel oxide-decorated in situ grown 3-D graphitic forest engrained carbon foam electrode for microbial fuel cells

et al. 2021

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A nickel oxide-decorated in situ grown 3-D graphitic forest engrained carbon foam electrode for microbial fuel cells

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“…%) of red mud particles were used as filler. The carbon-red mud hybrid foams were prepared using PU foam as template 34 . First, the solution was prepared from phenolic resin and acetone with a mass ratio of 30:70 and stirring for 1 hr.…”

Section: Methodsmentioning

confidence: 99%

Lightweight carbon-red mud hybrid foam toward fire-resistant and efficient shield against electromagnetic interference

Kumar

Sharma

Pandey

et al. 2020

Sci Rep

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Lightweight, porous, high-performance electromagnetic interference (EMI) shielding and fire-resistant materials are highly demanded in aerospace and defense applications. Due to the lightweight, open porosity and high surface area, carbon foam has been considered as one of the most promising candidates for EMI shielding applications. In the present investigation, we demonstrate the development of novel carbon-red mud hybrid foams with excellent EMI shielding effectiveness (SE). The carbon-red mud hybrid foams are prepared using phenolic resin as a carbon source and red mud (industrial waste) as filler. We observed that the inclusion of red mud in carbon-red mud hybrid foams significantly enhances their dielectric, magnetic, EMI shielding and thermal properties. The EMI shielding results show that absorption is the main contributor to the total EMI SE. The maximum total EMI shielding effectiveness is achieved to be 51.4 dB in the frequency range of 8.2-12.4 GHz for carbonred mud hybrid foam having 20 wt. % of red mud. The CF-RM20 also showed excellent fire resistance and high thermal stability at elevated temperatures.

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“…The increase in the development of minimally invasive surgical techniques has caused a significant clinical demand for injectable microporous foams to improve tissue healing [68]. Currently, injectable biomaterials include: low porosity calcium phosphate cements [66], porous calcium phosphate cements [77], composites with calcium phosphates (CPC) [76], hydrogels [83], and porous polymer foams or polyurethane foams [84]. These biomaterials have pores on a nanoscale, which limit the migration rate and cellular proliferation.…”

Section: Composite Foamsmentioning

confidence: 99%

“…All the above means that the cenospheres described in the review are suitable for injectable foams. Kumar et al [84] presented multifunctional lightweight carbon composite foams, developed by impregnation of phenolic resin and cenospheres (0-40 wt%) into the substrate with polyurethane foam (PU). The impregnated foams were then transformed into composite foams with carbon-cenospheres via heat treatment at 1000 ∘ C. This allows the cenospheres to be used as a substrate for composite foam materials, in a variety of applications.…”

Section: Composite Foamsmentioning

confidence: 99%

Cenospheres and their application advantages in biomedical engineering - a systematic review

Nakonieczny

Antonowicz

Paszenda

2020

Reviews on Advanced Materials Science

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Aluminum-silicate cenospheres are the most valuable residue present in fly ashes after combusting stone coal. Cenospheres are hollow bodies with desirable engineering properties, such as hardness, low bulk density and complete chemical inertness, thanks to which they can be used in biomedical engineering. The following review presents data on obtaining and processing the material, as well as potential biomedical applications.

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Excellent EMI shielding performance and thermal insulating properties in lightweight, multifunctional carbon-cenosphere composite foams

Cited by 82 publications

References 47 publications

A nickel oxide-decorated in situ grown 3-D graphitic forest engrained carbon foam electrode for microbial fuel cells

A nickel oxide-decorated in situ grown 3-D graphitic forest engrained carbon foam electrode for microbial fuel cells

Lightweight carbon-red mud hybrid foam toward fire-resistant and efficient shield against electromagnetic interference

Cenospheres and their application advantages in biomedical engineering - a systematic review

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