Flexible and lightweight Fe3O4/polymer foam composites for microwave-absorption applications

Phadtare, Varsha D.; Lee, Kyu Yeon; Kim, Tae-Hee; Puri, Vijaya; Park, Hyung Ho

doi:10.1016/j.jallcom.2019.07.048

Cited by 48 publications

(11 citation statements)

References 35 publications

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“…The excellent properties like physical, mechanical, chemical, electrical, thermal, optical, etc., along with the low cost of the composites as compared to the conventional materials facilitated their applications in the above fields. [ 1–9 ] One of the most important characteristics of reinforced polymer composites to be used in the above applications is wear resistance. [ 10–12 ] Kurdi et al revealed that, better is the mechanical properties like, compressive strength, hardness, and impact strength of the polymer composites, higher is the resistance to wear at room temperature.…”

Section: Introductionmentioning

confidence: 99%

“…applications in the above fields. [1][2][3][4][5][6][7][8][9] One of the most important characteristics of reinforced polymer composites to be used in the above applications is wear resistance. [10][11][12] Kurdi et al revealed that, better is the mechanical properties like, compressive strength, hardness, and impact strength of the polymer composites, higher is the resistance to wear at room temperature.…”

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confidence: 99%

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Wear characteristics of glass‐polyester‐based hybrid composites: A parametric analysis using response surface method and fuzzy logic

2020

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Marble dust generated during processing of the marble producing rocks is a major solid waste with a detrimental impact on environment. Analysis shows that this waste has constituents having compounds like SiO2, Al2O3, Fe2O3, CaO, MgO, etc., in different proportions. This paper explores on the possible use of waste marble dust as secondary filler in glass‐polyester composites and reports on its dry sliding wear characteristics. Such hybrid composites with unsaturated polyester as the matrix are fabricated by keeping the woven glass fibre loading fixed and by varying the weight fraction of the particulate filler, that is, marble dust through a simple hand layup route. Dry sliding wear trials are conducted under different test conditions as per ASTM G 99‐05 following the L30 model of response surface method (RSM). A parametric appraisal of the wear process is made using RSM and the significant control factors and their interactions influencing the specific wear rates are identified. Scanning electron microscopy of the worn composite surfaces is done to ascertain the wear mechanism. It is found that the presence of marble dust improves the wear resistance of unfilled glass‐polyester composites substantially. Further, prediction of wear rate of the composites for a wide range of filler content and sliding velocities is conducted using RSM and another prediction model based on fuzzy logic and the outcomes are compared.

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Section: Introductionmentioning

confidence: 99%

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confidence: 99%

Wear characteristics of glass‐polyester‐based hybrid composites: A parametric analysis using response surface method and fuzzy logic

2020

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“…Since the first examples of synthetic polymer aerogels reported by Pekala and co-workers [ 1 , 2 , 3 ], many types of polymer aerogels have been synthetized by changing the sol-gel process and the polymer backbone [ 4 , 5 , 6 , 7 , 8 , 9 , 10 , 11 , 12 ]. Due to the combination of low cost, simple production processes, and straight-forward tailoring of the physicochemical and functional properties [ 13 , 14 , 15 ], polymer aerogels continue to attract significant attention from academic and industrial communities for a diverse range of uses within the scope of a broad technological platform [ 16 , 17 , 18 , 19 , 20 , 21 , 22 , 23 , 24 ].…”

Section: Introductionmentioning

confidence: 99%

Nanoporous Crystalline Composite Aerogels with Reduced Graphene Oxide

et al. 2020

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High-porosity monolithic composite aerogels of syndiotactic polystyrene (sPS) and poly(2,6-dimethyl-1,4-phenylene oxide) (PPO) containing reduced graphene oxide (r-GO) were prepared and characterized. The composite aerogels obtained by supercritical carbon dioxide (scCO2) extraction of sPS/r-GO and PPO/r-GO gels were characterized by a fibrillar morphology, which ensured good handling properties. The polymer nanoporous crystalline phases obtained within the aerogels led to high surface areas with values up to 440 m2 g−1. The role of r-GO in aerogels was studied in terms of catalytic activity by exploring the oxidation capacity of composite PPO and sPS aerogels toward benzyl alcohol in diluted aqueous solutions. The results showed that, unlike sPS/r-GO aerogels, PPO/r-GO aerogels were capable of absorbing benzyl alcohol from the diluted solutions, and that oxidation of c.a. 50% of the sorbed benzyl alcohol molecules into benzoic acid occurred.

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“…Several studies have been developed to synthesize binary and ternary materials with Fe 3 O 4 base for different purposes. For example, Phadtare and coworkers designed Fe 3 O 4 /polymer composites for microwaveabsorption applications [10]. Zhu et al synthesized core shell Fe 3 O 4 /PANI for chromium reduction [11].…”

Section: Introductionmentioning

confidence: 99%

Superparamagnetic Behaviour and Surface Analysis of Fe3O4/PPY/CNT Nanocomposites

Rajagukguk

Simamora

Saragih

et al. 2020

Journal of Nanomaterials

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The superparamagnetic property of nanomaterials such as Fe3O4 has been considered to be promising for various applications. In this paper, Fe3O4/PPY/CNT nanocomposites were synthesized with utilizing natural iron sand by a coprecipitation method. The as-precipitated Fe3O4 NPs were combined with carbon nanotubes (CNTs) using conductive polypyrrole (PPY) as linking agents. The Fe3O4/PPY/CNT nanocomposites were systematically characterized by FE-SEM, EDS, XRD, BET, and FTIR. Furthermore, the effects of CNTs on magnetic and thermal properties of nanocomposites were investigated by VSM and thermal gravimetric analysis (TGA), respectively. The composites exhibited significant decrease of coercivity value with the content of CNTs increasing. The VSM result confirmed that Fe3O4/PPY/CNT nanocomposites were superparamagnetic. It was found that by increasing the amounts of CNTs, the magnetization of Fe3O4/PPY/CNT nanocomposites gradually decreased. The addition of CNTs is intended to improve the mesoporous property as proved by BET analysis which has the potential application as a nanocatalyst.

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Flexible and lightweight Fe3O4/polymer foam composites for microwave-absorption applications

Cited by 48 publications

References 35 publications

Wear characteristics of glass‐polyester‐based hybrid composites: A parametric analysis using response surface method and fuzzy logic

Wear characteristics of glass‐polyester‐based hybrid composites: A parametric analysis using response surface method and fuzzy logic

Nanoporous Crystalline Composite Aerogels with Reduced Graphene Oxide

Superparamagnetic Behaviour and Surface Analysis of Fe3O4/PPY/CNT Nanocomposites

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