Effects of functional graphene oxide on the properties of phenyl silicone rubber composites

Xu, Youlong; Gao, Qun; Liang, Hongqin; Zheng, Kangsheng

doi:10.1016/j.polymertesting.2016.07.013

Cited by 65 publications

(26 citation statements)

References 29 publications

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“…6 In addition, graphene can tightly couple with matrix materials. [7][8][9] Nevertheless, the aggregation caused by molecular interactions [10][11][12] and compatibility between the graphene and polymer matrix 13 may directly affect the performance of the graphene-modied composite. Therefore, graphene has to be subjected to surface modication, such as graing with organic molecules.…”

Section: Introductionmentioning

confidence: 99%

Surface modification and thermal performance of a graphene oxide/novolac epoxy composite

Fang

et al. 2018

RSC Adv.

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Functionalized graphene oxide (GO) was successfully modified by grafting 1,3,5-triglycidylisocyanurate (TGIC) onto the surface of GO. The modified GO was then added to a novolac epoxy composite at various volume fractions to improve the interfacial compatibility between the filler and matrix. Samples of the modified GO/novolac epoxy composite were fabricated through the hot-pressing method.Microstructural analysis revealed that the modified GO dispersed well in the matrix and formed thermal conductive pathways across the matrix. The thermal degradation temperature of 50% weight loss of the modified GO/novolac epoxy composite was 166 C higher than that of the novolac epoxy. The data for loss factor tan d demonstrated that when the composite contained 36.8 wt% of modified GO, the glass transition temperature of the modified GO/novolac epoxy composite was 222 C, which is 90 C higher than that of the novolac epoxy. The thermal conductivity of the modified GO/novolac epoxy composite. Results indicated that the incorporation of surface-modified GO into the novolac epoxy positively affects the thermal conductivity and various properties of the modified GO/novolac epoxy composite.

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Section: Introductionmentioning

confidence: 99%

Surface modification and thermal performance of a graphene oxide/novolac epoxy composite

Fang

et al. 2018

RSC Adv.

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“…The peaks at 2925 and 2850 cm −1 , appeared in the spectra of MBT and silane coupling agent KH845‐4, were attributed to the asymmetric and symmetric CH stretch in methylene groups, respectively. It proved the successful adherence between KH845‐4 and surface of BT particles because these peaks cannot be found in the spectrum of UBT . Similarly, the peak at 1089 cm −1 , belonging to the stretching vibration of SiO, also confirmed this conclusion.…”

Section: Resultsmentioning

confidence: 61%

Enhancement of mechanical strength associated with interfacial tension between barium titanate and acrylonitrile–butadiene rubber with different acrylonitrile contents by surface modification

Zhu

Guo

Zhang

2017

J of Applied Polymer Sci

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Acrylonitrile–butadiene rubber (NBR) with different acrylonitrile (ACN) contents was filled with barium titanate (BT) to prepare the polymer dielectrics. The neat NBR, NBR/untreated BT, and NBR/bis‐(γ‐triethoxysilylpropyl)‐tetrasulfide (silane coupling agent KH845‐4) modified BT (MBT) composites were prepared. At low ACN content (ACN content 20 wt %), the tensile strength of the NBR/MBT composites increased by 173.6% from 2.69 to 7.36 MPa compared to the neat NBR. The pleasing results were not found in those composites with high ACN content. Both surface modifications of BT and NBR with low ACN content would result in lower interfacial tension between BT and NBR. A strong interfacial adhesion was observed between MBT and NBR with 20 wt % ACN content. The interfacial adhesion had great contribution to the mechanical strength of composites. Moreover, the dielectric properties of composites were also investigated in detail. The addition of BT enhanced the dielectric constant of composites markedly. This study can be applied in manufacturing electronic devices, which are subjected to oily environments for a long time. At the same time, the study can provide some help for researchers to select the polymer matrix and the appropriate surface modification agent of functional filler. © 2017 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2018, 135, 45936.

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“…In the GO‐rGO system, according to easy functionalization because of the oxidized groups such as ‐OH, ‐O‐, COOH groups on the graphene sheet, a lot of researches using additives (silane coupling agent, surfactant, copolymers etc .) for improving polymer‐filler adhesion and dispersion stability were widely reported . On the other hand, recently directly exfoliated graphene has high conductivity and low functional groups compared to GO‐rGO system due to lack of defects has been researched, however, from the viewpoint of the polymer composite material, it is necessary to solve the adhesive property and the dispersibility of the graphene …”

Section: Introductionmentioning

confidence: 99%

Decorating surface charge of graphite nanoplate using an electrostatic coupling agent for 3‐dimensional polymer nanocomposite

Ryu

Kim

Kwon

et al. 2019

J of Applied Polymer Sci

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Here, we report a facile approach to electrostatically couple the surface charges of graphite nanoplate (GNP) fillers and poly(methyl methacrylate) (PMMA) polymer particles using ethylene maleic anhydride (EMA) copolymer as an electrostatic coupling agent. Our strategy involved switching the intrinsic repulsive electrostatic interactions between the directly exfoliated GNPs fillers and the PMMA particles to attractive electrostatic surface interactions for preparing core(PMMA)‐shell (GNP) precursor in order to optimizing 3‐dimensionally dispersed polymer nanocomposite. As a result, the electrical conductivity of the composites dramatically increased by a factor of 16.7 in the EMA‐coupled GNP/PMMA composites compared with that of the EMA‐free GNP/PMMA composites. In addition, the percolation threshold was also notably reduced from 0.32 to 0.159 vol% after electrostatic coupling of the GNPs fillers and PMMA particles. © 2019 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2020, 137, 48390.

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Effects of functional graphene oxide on the properties of phenyl silicone rubber composites

Cited by 65 publications

References 29 publications

Surface modification and thermal performance of a graphene oxide/novolac epoxy composite

Surface modification and thermal performance of a graphene oxide/novolac epoxy composite

Enhancement of mechanical strength associated with interfacial tension between barium titanate and acrylonitrile–butadiene rubber with different acrylonitrile contents by surface modification

Decorating surface charge of graphite nanoplate using an electrostatic coupling agent for 3‐dimensional polymer nanocomposite

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