Nanocomposites based on polystyrene-b-poly(ethylene-r-butylene)-b-polystyrene and exfoliated graphite nanoplates: Effect of nanoplatelet loading on morphology and mechanical properties

Rath, Tanmoy; Li, Yongjin

doi:10.1016/j.compositesa.2011.09.002

Cited by 46 publications

(47 citation statements)

References 37 publications

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“…A significant decrease in yield strength (*47 %) and modulus (*57 %) is observed with the addition of graphene. This result differs from most reports where authors observed significant improvements in mechanical properties when graphene was used as a filler material within various polymers [12,13,15,16]. Generally, the enhancement of strength and modulus is attributed to high aspect ratio and high strength of the filler as well as the uniform distribution and good interfacial adhesion between the fillers and matrixes, which provide effective load transfer from the matrixes to the fillers [12,24,40].…”

Section: Quasi-static Compressive Responsecontrasting

confidence: 55%

“…In recent years, graphene based composites have become a topic of significant academic and industrial interest. While a number of studies have shown that the presence of graphene within polymers can enhance the mechanical properties of the bulk composite [12][13][14][15][16][17][18], other studies have shown that graphene can also have adverse effects on the mechanical properties [19][20][21]. Fang et al [13] investigated the effect of low concentrations of graphene on the mechanical strength of graphene/PS composites.…”

Section: Introductionmentioning

confidence: 99%

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Electro-mechanical Behavior of Graphene–Polystyrene Composites Under Dynamic Loading

Heeder

Chakraborty

Bose

et al. 2015

J. dynamic behavior mater.

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An experimental investigation was conducted to understand the electro-mechanical response of graphene reinforced polystyrene (PS) composites under static and dynamic loading. Graphene/PS composites were fabricated using a solution mixing approach followed by hot-pressing. Absolute resistance values were measured with a highresolution four-point probe method for both quasi-static and dynamic loading. A modified split Hopkinson (Kolsky) pressure bar apparatus, capable of simultaneous mechanical and electrical characterization, was developed and implemented to investigate the dynamic electro-mechanical response of the composites. In addition to measuring the change in electrical resistance as well as the dynamic constitutive behavior, real-time surface damage and global deformation was captured using high-speed photography. The real-time damage was correlated to both stress-strain and percent change in resistance profiles. The experimental findings indicate that the bulk resistance of the composite increased significantly due to the brittle nature of the PS matrix and the presence of relative agglomerations of graphene platelets which resulted in microcrack formations. Scanning electron microscopy imaging gives further insight into the various damage mechanisms that occur within the composites subjected to a static or dynamic load. The results show that the change in transport properties can provide further insight into the microstructural evolution of composite materials during loading.

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Section: Quasi-static Compressive Responsecontrasting

confidence: 55%

Section: Introductionmentioning

confidence: 99%

Electro-mechanical Behavior of Graphene–Polystyrene Composites Under Dynamic Loading

Heeder

Chakraborty

Bose

et al. 2015

J. dynamic behavior mater.

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“…The sharp peak at 2h 5 26.5 in nanocomposites corresponds to a (002) plane of GNPs [33,34]. Thus, the incidence of peaks emphasizes the presence of pure GNP and the fact that the individual GNPs consist of multilayer graphene sheets with a dspacing of 3.36 Å .…”

Section: Thermogravimetric Analysismentioning

confidence: 90%

Mechanical, thermal, and morphological properties of graphene reinforced polycarbonate/acrylonitrile butadiene styrene nanocomposites

et al. 2014

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Nanocomposites of polycarbonate/acrylonitrile butadiene styrene (PC/ABS) with (70/30) composition containing different amounts of graphene nanoplates (GNPs) (1, 3, and 5 wt%) were prepared by melt‐blending in a twin‐screw extruder. The structural, morphological, mechanical, and thermal properties of the nanocomposites were investigated. The Young's modulus and flexural modulus of the nanocomposites were increased by 30 and 54%, respectively, when 3 wt% GNPs was added. The flexural strength and tensile strength of the PC/ABS/GNPs nanocomposites increased up to a loading of 3 wt% GNPs. The incorporation of GNPs enhanced the thermal stability and char yield of the nanocomposites. X‐ray diffraction and field emission scanning electron microscopy showed uniform dispersion and alignment of GNPs in PC/ABS matrix. The interaction between the GNPs and the PC/ABS matrix were confirmed by Fourier transform infrared spectra. Therefore, the PC/ABS/GNP nanocomposites with improved flexural and tensile properties, without loss of extensibility and good thermal properties may have promising applications in automotive, electric tools, household, communication, and safety appliances. POLYM. COMPOS., 37:1633–1640, 2016. © 2014 Society of Plastics Engineers

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“…7b, in the PEN/GN composites, some discrete GN apparently pulled out with the matrix polymer during fracturing. Similar phenomenon was also observed in the polystyrene-b-poly(ethylene-r-butylene)-bpolystyrene (SEBS)/GN nanocomposites and the authors thought this kind of morphology indicates the strong interfacial adhesion between the GN and the SEBS matrix [25]. This may be attributed to the fact that some polar oxygen-containing groups such as carboxyl and hydroxyl groups on GN could interact with PEN matrix, since GN was prepared from acid-intercalated EG.…”

Section: Sem Images Of Pen Host Pen/gn Pen/cf and Pen/cf/gn Compositesmentioning

confidence: 57%

Dramatic mechanical and thermal increments of thermoplastic composites by multi-scale synergetic reinforcement: Carbon fiber and graphene nanoplatelet

Yang

Wang

et al. 2013

Materials & Design

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Nanocomposites based on polystyrene-b-poly(ethylene-r-butylene)-b-polystyrene and exfoliated graphite nanoplates: Effect of nanoplatelet loading on morphology and mechanical properties

Cited by 46 publications

References 37 publications

Electro-mechanical Behavior of Graphene–Polystyrene Composites Under Dynamic Loading

Electro-mechanical Behavior of Graphene–Polystyrene Composites Under Dynamic Loading

Mechanical, thermal, and morphological properties of graphene reinforced polycarbonate/acrylonitrile butadiene styrene nanocomposites

Dramatic mechanical and thermal increments of thermoplastic composites by multi-scale synergetic reinforcement: Carbon fiber and graphene nanoplatelet

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