Grafting of epoxy chains onto graphene oxide for epoxy composites with improved mechanical and thermal properties

Wan, Yan; Tang, Long‐Cheng; Gong, Li; Yan, Dong; Li, Yi Bao; Wu, Lianbin; Jiang, Jian; Lai, Guo Qiao

doi:10.1016/j.carbon.2013.12.050

Cited by 711 publications

(380 citation statements)

References 89 publications

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“…It should be mentioned that different T g values have been reported for the same materials, which can be the result of incorporating different methods of analysis [20], neglecting the effect of fillers on the degree and nature of crystallinity of the matrix [20], or different methods of preparation [224]. Graphene nanoplatelet (GNP)-5 5 wt% Epoxy VDW Strength~− 60% [178] Noncovalent functionalized graphene flakes 0.25 wt% Epoxy Improved interaction Strength + 75% [179] a Copolymers of styrene and p-chloromethylstyrene…”

Section: Glass Transition (T G )mentioning

confidence: 99%

A review on the role of interface in mechanical, thermal, and electrical properties of polymer composites

Kashfipour

Mehra

Zhu

2018

Adv Compos Hybrid Mater

157

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Composite materials and especially polymer composites are widely used in daily life and different industries due to their vastly different properties and design flexibility. It is known that the properties of the composites are strongly related to the properties of its constituents. However, it has been reported in many studies, experimentally and by simulations, that the characteristics of the composites do not follow the rule of mixing. It means that in addition to properties of the constituents, there are other parameters affecting the final physicochemical properties of composites. The interfacial interactions between fillers and host is one of the factors which can strongly affect the properties of the composite. In this review, we summarized the type of interactions between the constituents, their improvement techniques, interaction measurement methods, and the effects of interfacial interactions on thermal, mechanical, and electrical properties of composites.

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Section: Glass Transition (T G )mentioning

confidence: 99%

A review on the role of interface in mechanical, thermal, and electrical properties of polymer composites

Kashfipour

Mehra

Zhu

2018

Adv Compos Hybrid Mater

157

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“…The reaction between pendant OCFGs on the GO surface and the epoxy matrix in the liquid phase is well known. Yang et al (2009) has shown that DGEBA molecules can indeed be grafted onto GO by reaction with pendant OCFGs in an aqueous medium if a mixture of GO and resin is heated at 50°C while stirring for 4 h. Wan et al (2014) prepared DGEBAfunctionalized GO sheets by dispersing GO sheets in acetone via bath sonication in the presence of DGEBA resin at 70°C using NaOH as catalyst. They confirmed grafting of DGEBA onto the GO sheets using a combination of XPS, XRD, atomic force microscopy (AFM), transmission electron microscopy (TEM) and Raman spectroscopy.…”

Section: Thermo-mechanical Propertiesmentioning

confidence: 99%

In situ thermally reduced graphene oxide/epoxy composites: thermal and mechanical properties

et al. 2016

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Graphene has excellent mechanical, thermal, optical and electrical properties and this has made it a prime target for use as a filler material in the development of multifunctional polymeric composites. However, several challenges need to be overcome to take full advantage of the aforementioned properties of graphene. These include achieving good dispersion and interfacial properties between the graphene filler and the polymeric matrix. In the present work, we report the thermal and mechanical properties of reduced graphene oxide/epoxy composites prepared via a facile, scalable and commercially viable method. Electron micrographs of the composites demonstrate that the reduced graphene oxide (rGO) is well dispersed throughout the composite. Although no improvements in glass transition temperature, tensile strength and thermal stability in air of the composites were observed, good improvements in thermal conductivity (about 36 %), tensile and storage moduli (more than 13 %) were recorded with the addition of 2 wt% of rGO.

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“…Previous studies indicated that GO can enhance the mechanical properties of PCL matrix [12,13]. It has also been used to reinforce other polymer matrices, such as natural rubber [14], poly(arylene ether nitrile) [15], poly(vinyl chloride) [16], epoxy [17], silicone [18], polyurethane [19], poly(butylene succinate) [20], elastomer [21] and PP [22].…”

Section: Introductionmentioning

confidence: 99%

Structural Effects of Residual Groups of Graphene Oxide on Poly(ε-Caprolactone)/Graphene Oxide Nanocomposite

Duan

et al. 2018

Crystals

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Abstract:In this work, the crystallization behaviors, such as degree of crystallinity and crystalline thickness of poly(ε-caprolactone) (PCL) matrix with the incorporation of graphene oxide (GO) and their evolution with time were examined in order to better understand the influences of residual groups of GO on the semi-crystalline polyester. The results showed that the residual strong oxidizing debris on the GO surface could induce the degradation of amorphous parts in PCL matrix. Moreover, the increasing degree of crystallinity and almost constant crystalline thickness implies that oxidative degradation cannot degrade the crystal structure of PCL matrix.

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Grafting of epoxy chains onto graphene oxide for epoxy composites with improved mechanical and thermal properties

Cited by 711 publications

References 89 publications

A review on the role of interface in mechanical, thermal, and electrical properties of polymer composites

A review on the role of interface in mechanical, thermal, and electrical properties of polymer composites

In situ thermally reduced graphene oxide/epoxy composites: thermal and mechanical properties

Structural Effects of Residual Groups of Graphene Oxide on Poly(ε-Caprolactone)/Graphene Oxide Nanocomposite

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