A self-assembled graphene/polyurethane sponge for excellent electromagnetic interference shielding performance

Hu, Zhikang; Ji, Xinxin; Li, Buyin; Luo, Yuanzheng

doi:10.1039/c9ra02059d

Cited by 44 publications

(18 citation statements)

References 37 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…• Nanoparticles formation is slow Hydrothermal method [41,[48][49][50][51][52][53][54][55][56] It involves substance crystallization at high temperature and pressure.…”

Section: Discussion Of Articlesmentioning

confidence: 99%

Preparation methods for Graphene, Metal and Polymer-based Composites for EMI Shielding Materials: State of the Art of Conventional and Machine Learning Methods

Ayub¹,

Guan²,

Ahmad³

et al. 2021

Preprint

View full text Add to dashboard Cite

The electromagnetic inference is an issue from decades, where working for a better shielding material is still on-going. The purpose of this study is to review the existing methods in the formation of graphene, metal and polymer-based composites. Study indicates that in graphene and metal-based composites, the utilization of alternating deposition method showed the highest shielding effectiveness, whereas, in polymer-based composite, the utilization of chemical vapor deposition method showed highest shielding effectiveness. However, this review reveals that still there is a gap in the literature in terms of the selection of the method. Although there are various available methods which researchers adopt as per their convenience, none of the studies makes a comparison of the methods to form a similar composite. Therefore, as a future gap researcher needs to adopt various methods to form a single composite and then make a comparison of shielding effectiveness. This act will be useful for future researchers to select the appropriate method.

show abstract

“…• Nanoparticles formation is slow Hydrothermal method [41,[48][49][50][51][52][53][54][55][56] It involves substance crystallization at high temperature and pressure.…”

Section: Discussion Of Articlesmentioning

confidence: 99%

Preparation methods for Graphene, Metal and Polymer-based Composites for EMI Shielding Materials: State of the Art of Conventional and Machine Learning Methods

Ayub¹,

Guan²,

Ahmad³

et al. 2021

Preprint

View full text Add to dashboard Cite

show abstract

“…The results proved that in determining the EMI shielding effectiveness, the orientation of fillers plays a vital role. Hu et al [ 151 ] synthesized graphene sponge (G) with polyurethane to form a shielding composite. With a sample thickness of 9 mm and graphene loading 18.7 wt.% shielding effectiveness of 35 dB was achieved in the X-band frequency range.…”

Section: Polymer-based Compositesmentioning

confidence: 99%

Graphene and Iron Reinforced Polymer Composite Electromagnetic Shielding Applications: A Review

et al. 2021

View full text Add to dashboard Cite

With advancements in the automated industry, electromagnetic inferences (EMI) have been increasing over time, causing major distress among the end-users and affecting electronic appliances. The issue is not new and major work has been done, but unfortunately, the issue has not been fully eliminated. Therefore, this review intends to evaluate the previous carried-out studies on electromagnetic shielding materials with the combination of Graphene@Iron, Graphene@Polymer, Iron@Polymer and Graphene@Iron@Polymer composites in X-band frequency range and above to deal with EMI. VOSviewer was also used to perform the keyword analysis which shows how the studies are interconnected. Based on the carried-out review it was observed that the most preferable materials to deal with EMI are polymer-based composites which showed remarkable results. It is because the polymers are flexible and provide better bonding with other materials. Polydimethylsiloxane (PDMS), polyaniline (PANI), polymethyl methacrylate (PMMA) and polyvinylidene fluoride (PVDF) are effective in the X-band frequency range, and PDMS, epoxy, PVDF and PANI provide good shielding effectiveness above the X-band frequency range. However, still, many new combinations need to be examined as mostly the shielding effectiveness was achieved within the X-band frequency range where much work is required in the higher frequency range.

show abstract

“…PU sponges with GO suspension are used as high-performance EMI interference shielding materials. The high shielding effectiveness of 969–1578 dB cm 2 g −1 was observed using a GO/PU sponge [ 223 ]. Graphene embedded chitosan, hydroxypropyl cellulose, and polyethylene oxide were used as wound dressings with enhanced antibacterial properties [ 224 ].…”

Section: Applicationsmentioning

confidence: 99%

Recent Studies on Dispersion of Graphene–Polymer Composites

2021

View full text Add to dashboard Cite

Graphene is an excellent 2D material that has extraordinary properties such as high surface area, electron mobility, conductivity, and high light transmission. Polymer composites are used in many applications in place of polymers. In recent years, the development of stable graphene dispersions with high graphene concentrations has attracted great attention due to their applications in energy, bio-fields, and so forth. Thus, this review essentially discusses the preparation of stable graphene–polymer composites/dispersions. Discussion on existing methods of preparing graphene is included with their merits and demerits. Among existing methods, mechanical exfoliation is widely used for the preparation of stable graphene dispersion, the theoretical background of this method is discussed briefly. Solvents, surfactants, and polymers that are used for dispersing graphene and the factors to be considered while preparing stable graphene dispersions are discussed in detail. Further, the direct applications of stable graphene dispersions are discussed briefly. Finally, a summary and prospects for the development of stable graphene dispersions are proposed.

show abstract

A self-assembled graphene/polyurethane sponge for excellent electromagnetic interference shielding performance

Abstract: Process diagram of PUG Sponge for electromagnetic interference shielding.

Cited by 44 publications

References 37 publications

Preparation methods for Graphene, Metal and Polymer-based Composites for EMI Shielding Materials: State of the Art of Conventional and Machine Learning Methods

Preparation methods for Graphene, Metal and Polymer-based Composites for EMI Shielding Materials: State of the Art of Conventional and Machine Learning Methods

Graphene and Iron Reinforced Polymer Composite Electromagnetic Shielding Applications: A Review

Recent Studies on Dispersion of Graphene–Polymer Composites

Contact Info

Product

Resources

About