Nanocavities Double the Toughness of Graphene–Polycarbonate Composite

Huang, Wei Ming; Sun, Weifu; Chen, Guo Hua; Tan, Li

doi:10.1002/adem.201400143

Cited by 9 publications

(6 citation statements)

References 41 publications

(51 reference statements)

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“…[116][117][118] Some other very rarely studied synthetic polymers for potential biomedical sciences are poly(carbonate urethane), [119] poly(acrylic acid), [92] poly(l-lysine), [120] and elastomers. [121][122][123] 2.2.1. PVA PVA is a biocompatible, highly hydrophilic, water-soluble, and biodegradable synthetic polymer that is widely studied in the biomedical field.…”

Section: Synthetic Polymersmentioning

confidence: 99%

Graphene Oxide/Polymer‐Based Biomaterials

2017

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Since its discovery in 2004, derivatives of graphene have been developed and heavily investigated in the field of tissue engineering. Among the most extensively studied forms of graphene, graphene oxide (GO), and GO/ polymer-based nanocomposites have attracted great attention in various forms such as films, 3D porous scaffolds, electrospun mats, hydrogels, and nacre-like structures. In this review, the most actively investigated GO/ polymer nanocomposites are presented and discussed, these nanocomposites are based on chitosan, cellulose, starch, alginate, gellan gum, poly(vinyl alcohol) (PVA), poly(acrylamide), poly(e-caprolactone) (PCL), poly(lactic acid) (PLLA), poly(lactide-co-glycolide) (PLGA), gelatin, collagen, and silk fibroin (SF). The biological and mechanical performance of such nanocomposites are comprehensively scrutinized and ongoing research questions are addressed. The analysis of the literature reveals overall the great potential of GO/ polymer nanocomposites in tissue engineering strategies and indicates also a series of challenges requiring further research efforts.

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Section: Synthetic Polymersmentioning

confidence: 99%

Graphene Oxide/Polymer‐Based Biomaterials

2017

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“…GNPs have shown exceptional physical and thermomechanical properties, a high surface/volume ratio, as well as lower filler content, which make GNPs a promising candidate for developing the next‐generation of polymer composites. In addition, graphene‐related materials increase the stiffness, toughness, thermal conductivity, electrical performances, and mechanical behavior of polymer resins by a large margin …”

Section: Introductionmentioning

confidence: 99%

Multiscale simulation of the interlaminar failure of graphene nanoplatelets reinforced fibers laminate composite materials

Basso

Azoti

Elmarakbi

et al. 2019

J of Applied Polymer Sci

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This article presents a multiscale approach to derive the interlaminar properties of graphene nanoplatelets (GNPs)‐based polymeric composites reinforced by short glass fibers (SGFs) and unidirectional carbon fibers (UCFs). The approach accounts for the debonding at the interface of a 2‐phases GNPs/polymer matrix using a cohesive model. The resulting composite is used within a 3‐phases nanocomposite consisting either of a GNPs/polyamide/SGFs or a GNPs/epoxy/UCFs nanocomposite. Experiments are performed for determining the interlaminar fracture toughness in mode I for the GNPs/epoxy/UCFs. Results show that the aspect ratio (AR) of GNPs influences the effective Young modulus which increases until a threshold. Also, the addition of the GNPs increases up to 10% the transverse Young modulus and up to 11% the shear modulus as well as up to 16% the transverse tensile strength useful in crashworthiness performance. However, the nanocomposite behavior remains fiber dominant in the longitudinal direction. This leads to a weak variation of the mechanical properties in that direction. Due to the well‐known uniform dispersion issues of GNPs, the interlaminar fracture toughness GIC has decreased up to 8.5% for simulation and up to 2.4% for experiments while no significant variation of the interlaminar stress distribution is obtained compared to a nanocomposite without GNPs. © 2019 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2019, 136, 47664.

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“…The solution for such limitations passes upon the development of new fillers that can preserve the composite interfacial properties. As a contribution for solving such limitations, graphene‐based nanocomposites have been widely used for enhancing the multifunctional properties of polymer composite materials …”

Section: Introductionmentioning

confidence: 99%

A Multiscale Approach for the Nonlinear Mechanical Response of 3‐Phases Fiber Reinforced Graphene Nanoplatelets Polymer Composite Materials

Azoti

Elmarakbi

2019

Macro Theory & Simulations

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This work presents an analytical approach for solving the nonlinear mechanical response of hybrid glass fibers reinforced graphene polymer composite materials. Two‐scale homogenization technique derives the effective properties of the composite. At the first scale, the properties of a 2‐phases graphene/polymer composite are obtained by accounting for the J2 plasticity coupled with the “Lemaitre–Chaboche” ductile damage model. An interfacial imperfection between the fillers and the matrix is considered through the linear spring model (LSM). At the second scale, the modeling of the 3‐phases glass fibers/graphene/polymer composite combines the 2‐phases composite as a matrix phase in which are embedded the glass fibers. For both scales, a modified Mori–Tanaka scheme derives the effective properties. Numerical results, obtained for a thermoplastic PA6 matrix, are compared with the multistep method of Digimat software. Finally, a tension–torsion test shows that the imperfection at the fibers/polymer interface is the driven parameter to weaken mechanical responses in the shear direction.

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Nanocavities Double the Toughness of Graphene–Polycarbonate Composite

Cited by 9 publications

References 41 publications

Graphene Oxide/Polymer‐Based Biomaterials

Graphene Oxide/Polymer‐Based Biomaterials

Multiscale simulation of the interlaminar failure of graphene nanoplatelets reinforced fibers laminate composite materials

A Multiscale Approach for the Nonlinear Mechanical Response of 3‐Phases Fiber Reinforced Graphene Nanoplatelets Polymer Composite Materials

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