Development of poly(isobutylene-co-isoprene)/reduced graphene oxide nanocomposites for barrier, dielectric and sensingapplications

Kumar, Sadasivuni Kishor; Castro, Mickaël; Saiter, Allisson; Delbreilh, Laurent; Feller, Jean‐François; Thomas, Sabu; Grohens, Yves

doi:10.1016/j.matlet.2013.01.036

Cited by 112 publications

(62 citation statements)

References 12 publications

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“…A disadvantage of this approach is that it is complicated and time-consuming. In addition, the coating of GO on silica (SiO 2 ), metal oxide particles, or carbon nanosphere is an efficient method to prevent GO from self-agglomerating, as reported in previous studies [25,[30][31][32].…”

Section: Introductionmentioning

confidence: 76%

“…Obviously, the increase in the value of k of these polymers by addition of graphene oxide (GO) is far less than expected. The main reasons are the poor dispersion of graphene in matrix, the restacking of graphene sheets during preparation caused by π-π stacking and hydrophobic interactions, and/or weak interfacial adhesion between graphene sheets and the polymer matrix [25][26][27]. A good dispersion of GO in the polymer matrix and a strong interfacial adhesion between GO and the matrix can be obtained via the organic functionalization of GO [28,29].…”

Section: Introductionmentioning

confidence: 99%

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Simultaneously improved actuated performance and mechanical strength of silicone elastomer by reduced graphene oxide encapsulated silicon dioxide

Ning

Wang

Zhang

et al. 2015

International Journal of Smart and Nano Materials

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Herein, graphene oxide (GO)-encapsulated silica (SiO 2 ) hybrids (GO@SiO 2 ) were prepared via electrostatic self-assembly of the 3-aminopropyltriethoxysilane (APS)-modified SiO 2 and GO. The as-prepared GO@SiO 2 was introduced into polydimethylsiloxane (PDMS) elastomer to simultaneously increase the dielectric constant (k) and mechanical properties of PDMS. Then, the in situ thermal reduction of GO@SiO 2 / PDMS composites was conducted at 180°C for 2 h to increase the interfacial polarizability of GO@SiO 2 . As a result, the values of k at 1000 Hz are largely improved from 3.2 for PDMS to 13.3 for the reduced GO@SiO 2 (RGO@SiO 2 )/PDMS elastomer. Meanwhile, the dielectric loss of the composites remains low (<0.2 at 1000 Hz). More importantly, the actuated strain at low electric field (5 kV/mm) obviously increases from 0.3% for pure PDMS to 2.59% for the composites with 60 phr of RGO@SiO 2 , an eightfold increase in the actuated strain. In addition, both the tensile strength and elastic modulus are obviously improved by adding 60 phr of RGO@SiO 2 , indicating a good reinforcing effect of RGO@SiO 2 on PDMS. Our goal is to develop a simple and effective way to improve the actuated performance and mechanical strength of the PDMS dielectric elastomer for its wider application.

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Section: Introductionmentioning

confidence: 76%

Section: Introductionmentioning

confidence: 99%

Simultaneously improved actuated performance and mechanical strength of silicone elastomer by reduced graphene oxide encapsulated silicon dioxide

Ning

Wang

Zhang

et al. 2015

International Journal of Smart and Nano Materials

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“…This debris causes several problems and can be eliminated if the graphene oxide produced is treated with an aqueous solution of NaOH as shown in Figure 7 [110]. This base washing reduces the oxygen content of the GO [111], removes its brown coloration [112] and increases its conductivity by many orders of magnitude [110]. …”

Section: Preparation Methodsmentioning

confidence: 99%

Graphene/elastomer nanocomposites

Papageorgiou

Kinloch

Young

2015

Carbon

339

201

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In the decade since the first isolation and identification of graphene, the scientific community is still finding ways to utilize its unique properties. The present review deals with the preparation and physicochemical characterization of graphene-based elastomeric nanocomposites. The processing and characterization of graphene and graphene oxide are described in detail, since the presence of such fillers in an elastomeric matrix affects dramatically the properties of the nanocomposite samples. Several preparation routes for the efficient dispersion of graphene in elastomers are then discussed, while aspects such as the interfacial bonding between the filler and the matrix or interactions between the fillers have been thoroughly analysed. Different types of graphene/elastomer nanocomposites are described in terms of their manufacture and properties and it has been shown that depending on the type of graphene employed and the preparation methods, the mechanical, thermal, electrical and barrier properties of the elastomeric matrix can be enhanced due to the presence of graphene, even at relatively-low filler loadings. In most cases, the formation of a filler network can play a major role in the improvement of the overall performance of the material.

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“…However, thermoplastic and rubber toughening methods require a substantial amount of toughener, e.g. 15-20wt%, which causes the loss of other desirable properties [9]. In general, nanofillers due to their functionality, small size, high specific surface area, and cost-effective fabrication, are relatively the essential option [9].…”

Section: Introductionmentioning

confidence: 99%

“…Amongst the various shapes of available nanofillers, for example, sheet-like, rod-like and spherical structures, sheet-like structures have the most outstanding barrier effects [9]. Graphene, a single sheet of carbon atoms, was exfoliated from graphite for the first time in 2004 by Geim and Novoselov [10].…”

Section: Introductionmentioning

confidence: 99%

Fabrication of graphene oxide–alumina hybrids to reinforce the anti-corrosion performance of composite epoxy coatings

et al. 2015

Applied Surface Science

306

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Development of poly(isobutylene-co-isoprene)/reduced graphene oxide nanocomposites for barrier, dielectric and sensingapplications

Cited by 112 publications

References 12 publications

Simultaneously improved actuated performance and mechanical strength of silicone elastomer by reduced graphene oxide encapsulated silicon dioxide

Simultaneously improved actuated performance and mechanical strength of silicone elastomer by reduced graphene oxide encapsulated silicon dioxide

Graphene/elastomer nanocomposites

Fabrication of graphene oxide–alumina hybrids to reinforce the anti-corrosion performance of composite epoxy coatings

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