Role of Interphase in the Mechanical Behavior of Silica/Epoxy Resin Nanocomposites

Hua, Yi; Gu, Linxia; Premaraj, Sundaralingam; Zhang, Xiaodong

doi:10.3390/ma8063519

Cited by 29 publications

(20 citation statements)

References 25 publications

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“…Load is transferred from epoxy to particle more efficiently for stiffer interphase, improving the overall nanocomposite performance. These results are found to be consistent with other researchers' numerical studies [16,19,31], who either employed more complicated and demanding computational methods (atomistic structures, etc) or studied the interphase of different nanocomposites (i.e. silica/epoxy), therefore extending these observations to graphene/polymer nanocomposites obtained by a more applicable finite element model.…”

Section: Modelling Resultssupporting

confidence: 89%

“…Pandele et al [15] performed molecular mechanics and dynamic simulations at atomistic scale to investigate the mechanical behaviour of the graphene-based chitosan (CS) composite with varied reinforcing content. Although Yi Hua et al [16] did not consider graphene/polymer nanocomposites, their work on the simulation of the mechanical response of silica/epoxy nanocomposite gave insight into the effect of the interphase developed between the epoxy and a nanoparticle. Finally, Spanos et al [17] described a micromechanical finite element approach for the estimation of the elastic mechanical properties of graphene-reinforced composites.…”

Section: Introductionmentioning

confidence: 99%

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Tensile and flexural behaviour of a graphene/epoxy composite: experiments and simulation

2019

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The tensile and flexural behaviour of a graphene nanoplatelet (GnP) reinforced polymer, Grade M25 GnP / Araldite LY564 is experimentally investigated. This is followed by a multi-scale finite element model to simulate the tensile response as the most critical loading case. The approach is based on the multi-scale method and consists of a unit cell and a representative volume element (RVE). At the unit cell level, the material nanocharacteristics (filler geometry, phase mechanical properties, interfacial properties) are used to calculate the local tensile response. The material architecture is simulated at the RVE level by distributing the locally obtained unit cell mechanical properties, using periodic boundary conditions. A statistical sample was studied and the average mechanical characteristics were compared to the macroscopic measured stress-strain data. Finally, the simulation methodology was validated by comparisons between the effective experimental and numerical results.

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Section: Modelling Resultssupporting

confidence: 89%

Section: Introductionmentioning

confidence: 99%

Tensile and flexural behaviour of a graphene/epoxy composite: experiments and simulation

2019

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“…Hua et al have a complete explanation on this matter. They expressed that a perfect bonding assumption can lead to an increase of the Young's modulus in the nanocomposites .…”

Section: Resultsmentioning

confidence: 99%

Poly(dimethylsiloxane)/Cu/Ag nanocomposites: Electrical, thermal, and mechanical properties

2019

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Multifunctional materials are urgently required for sensing and actuation purposes in microfluidic devices. In this study, poly(dimethylsiloxane) (PDMS) filled with Cu and Ag nanoparticles was prepared and its electrical conductivity (EC), thermal conductivity (TC), and mechanical properties were investigated. EC investigations showed that all the prepared compositions had a nearly similar percolation threshold of around 10 vol% of filler. However, the EC of nanocomposites filled with both Cu and Ag (PDMS/Cu/Ag) was about 1.8 S/cm, which was 200% higher compared with that of other compositions (0.3 and 0.6 S/cm). TC was found to undergo profound increase of 10.5-fold (1.68 W.m −1 .K −1 for PDMS/Cu/Ag) when compared with that of the insulating base polymer (0.16 W.m −1 .K −1 ). Evaluation of mechanical properties demonstrated that Young's modulus of PDMS increased by 270% after adding the filler content, but the tensile strength showed a notable reduction of 12%. The final result of this study showed that PDMS/Cu/Ag nanocomposites could be considered as a suitable novel material in microchannel preparation and microfluidic devices. POLYM. COMPOS., 40:4093-4101, 2019.

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“…The PS/SBS blends were prepared by melt compounding via a triple‐screw extruder to achieve homogeneous mixing. The miscibility and interphase of the components are the most important factors determining its properties . In this study, the miscibility was studied by DSC, and the second heating thermograms are shown in Figure .…”

Section: Resultsmentioning

confidence: 99%

Cell evolution and compressive properties of styrene–butadiene–styrene toughened and calcium carbonate reinforced polystyrene extrusion foams with supercritical carbon dioxide

Jing

Peng

et al. 2016

J of Applied Polymer Sci

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Polystyrene (PS) foams have been used in various fields, whereas its broader application is limited by its low mechanical strength and brittle features. In this study, styrene-butadiene-styrene (SBS) and calcium carbonate (CaCO 3 ) nanoparticles were meltblended with PS and extrusion-foamed with supercritical carbon dioxide as a blowing agent to simultaneously toughen and reinforce PS foams. Under the same foaming conditions, the addition of SBS and CaCO 3 was shown to have a significant influence on the cell structure and the compressive properties of the composite foams. We found that the cell structure evolution was highly correlated with the system viscosity. When the rubbery-phase SBS content was 20%, the cell diameter decreased by 20.7%, and the compressive modulus was enhanced by 289.5%. With the further addition of 5% rigid CaCO 3 nanoparticles, the cell diameter was further reduced by 72.2% and the compressive modulus was improved by 379

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Role of Interphase in the Mechanical Behavior of Silica/Epoxy Resin Nanocomposites

Cited by 29 publications

References 25 publications

Tensile and flexural behaviour of a graphene/epoxy composite: experiments and simulation

Tensile and flexural behaviour of a graphene/epoxy composite: experiments and simulation

Poly(dimethylsiloxane)/Cu/Ag nanocomposites: Electrical, thermal, and mechanical properties

Cell evolution and compressive properties of styrene–butadiene–styrene toughened and calcium carbonate reinforced polystyrene extrusion foams with supercritical carbon dioxide

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