Infrared-Triggered Actuators from Graphene-Based Nanocomposites

Liang, Jiajie; Xu, Yanfei; Huang, Yi; Zhang, Long; Wang, Yan; Ma, Yanfeng; Li, Feifei; Guo, Tianying; Chen, Yongsheng

doi:10.1021/jp901284d

Cited by 365 publications

(238 citation statements)

References 41 publications

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“…Therefore, application of the nanostructured materials such as carbon nanotubes (CNTs), graphene, and nanoparticles in modification of the surface morphology of PVDF is the subject of interest to improving superhydrophobicity. Among aforementioned nanofillers graphene, due to its hydrophobic properties, has recently received increasing attention in producing of graphene/polymer composites and engineering of the superhydrophobic surfaces [9][10][11]. Favorable enhancement of mechanical, electrical, and thermal properties of polymers by compositing theme with small amount of graphene has been investigated in many nanocomposite related works [12][13][14][15].…”

Section: Introductionmentioning

confidence: 99%

Preparation and Characterization of Polyvinylidene Fluoride/Graphene Superhydrophobic Fibrous Films

Karimi-Sabet²,

et al. 2015

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Abstract:A new strategy to induce superhydrophobicity via introducing hierarchical structure into the polyvinylidene fluoride (PVDF) film was explored in this study. For this purpose nanofibrous composite films were prepared by electrospinning of PVDF and PVDF/graphene blend solution as the main precursors to produce a net-like structure. Various spectroscopy and microscopy methods in combination with crystallographic and wettability tests were used to evaluate the characteristics of the synthesized films. Mechanical properties have been studied using a universal stress-strain test. The results show that the properties of the PVDF nanofibrous film are improved by compositing with graphene. The incorporation of graphene flakes into the fibrous polymer matrix changes the morphology, enhances the surface roughness, and improves the hydrophobicity by inducing a morphological hierarchy. Superhydrophobicity with the water contact angle of about 160° can be achieved for the PVDF/graphene electrospun nanocomposite film in comparison to PVDF pristine film.

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Section: Introductionmentioning

confidence: 99%

Preparation and Characterization of Polyvinylidene Fluoride/Graphene Superhydrophobic Fibrous Films

Karimi-Sabet²,

et al. 2015

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“…[ [5][6][7][8][9][10] To obtain defect-free, high-quality graphene sheets, the most widely used approaches are chemical vapour deposition [11,12] and micromechanical cleavage of graphite [13]. Still, these approaches show a low production yield and are time consuming.…”

Section: Introductionmentioning

confidence: 99%

Chemical functionalization of graphene oxide for improving mechanical and thermal properties of polyurethane composites

et al. 2015

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“…[ 13,38 ] Polymers for composites used in fi ber lasers for ultrashort pulse generation have to be transparent at the device-operation wavelength, be mechanically fl exible, thermally, and chemically stable as well as being resistant to moisture (e.g., hydrophobic) [ 13,35 ] as moisture-induced hygroscopic swelling in polymers can cause internal stress in the polymeric matrix. [ 43 ] Various polymers, such as polyvinylacetate (PVAc), [ 44 ] polyvinylalcohol (PVA), [ 13 ] polymethylmetacrylate (PMMA), [ 45 ] polyaniline (PANi), [ 46 ] polycaprolactone (PCL), [ 47 ] polyurethane (PU), [ 48 ] polystyrene (PS), [ 49 ] polylactide (PLA), [ 50 ] polyethylene Graphene-polymer composites play an increasing role in photonic and optoelectronic applications, from ultrafast pulse generation to solar cells. The fabrication of an optical quality surfactant-free graphene-styrene methyl methacrylate composite, stable to large humidity and temperature ranges is reported.…”

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confidence: 99%

Stable, Surfactant‐Free Graphene–Styrene Methylmethacrylate Composite for Ultrafast Lasers

Torrisi

Popa

Milana

et al. 2016

Advanced Optical Materials

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the global range of applications of ultrafast lasers (e.g., manufacturing, biomedical research, telecommunications, spectroscopy, etc.) requires SAs to show thermal and environmental stability (i.e., moisture absorption ≤1% by weight in high, ≥80%, humidity environment and glass transition temperature ≥120 °C, for polymers). [ 11 ] Carbon nanotubes (CNTs), [ 2,12,13 ] graphene [13][14][15] and recently, other 2D materials such as semiconducting transition metal dichalcogenides (MoS 2 , [ 16,17 ] WS 2 , [ 18 ] MoSe 2 [ 19 ] ) and black phosphorus [ 20,21 ] have emerged as promising SAs for ultrafast lasers. [ 2,[22][23][24] In CNTs, broadband operation is achieved by using a distribution of tube diameters, [ 2,22 ] while this is an intrinsic property of graphene. [ 25 ] This, along with the ultrafast recovery time, [ 26 ] low saturation fl uence, [ 15,27 ] and ease of fabrication [ 28 ] and integration, [ 29 ] makes graphene an excellent broadband SA. [ 25 ] Consequently, modelocked lasers using graphene SAs (GSAs) have been demonstrated from ≈800 nm [ 30 ] to ≈970 nm, [ 31 ] ≈1 µm, [ 32 ] ≈1.5 µm, [ 27 ] and ≈2 µm [ 33 ] up to ≈2.4 µm. [ 34 ] Polymeric materials are the ideal solution to integrate GSAs into fi ber lasers. [ 1,35 ] They are easily processed by methods such as embossing, stamping, sawing, and wet or dry etching, and generally have a low-cost room-temperature fabrication process. [ 13,36 ] Liquid phase exfoliation (LPE) of graphite crystals in a surfactant-stabilized aqueous solution [37][38][39] and organic solvents [ 38,40,41 ] can be used to produce graphene. The LPE yield can be defi ned in different ways. [ 29 ] The yield by weight, Y M [%], is defi ned as the ratio between the weight of dispersed graphitic material and that of the starting graphite fl akes. References [ 38,41,42 ] reported surfactant-free dispersions of graphene in organic solvents, e.g., N -methylpyrrolidone (NMP), N -dimethylformamide (DMF), and ortho -dichlorobenzene ( o -DCB). Graphene from LPE is ideal to produce polymer composites as it can be mixed/blended in liquid or dry form with a host polymer matrix. [ 13,38 ] Polymers for composites used in fi ber lasers for ultrashort pulse generation have to be transparent at the device-operation wavelength, be mechanically fl exible, thermally, and chemically stable as well as being resistant to moisture (e.g., hydrophobic) [ 13,35 ] as moisture-induced hygroscopic swelling in polymers can cause internal stress in the polymeric matrix. [ 43 ] Various polymers, such as polyvinylacetate (PVAc), [ 44 ] polyvinylalcohol (PVA), [ 13 ] polymethylmetacrylate (PMMA), [ 45 ] polyaniline (PANi), [ 46 ] polycaprolactone (PCL), [ 47 ] polyurethane (PU), [ 48 ] polystyrene (PS), [ 49 ] polylactide (PLA), [ 50 ] polyethylene Graphene-polymer composites play an increasing role in photonic and optoelectronic applications, from ultrafast pulse generation to solar cells. The fabrication of an optical quality surfactant-free graphene-styrene methyl methacrylate composite, stable to large humidit...

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Infrared-Triggered Actuators from Graphene-Based Nanocomposites

Cited by 365 publications

References 41 publications

Preparation and Characterization of Polyvinylidene Fluoride/Graphene Superhydrophobic Fibrous Films

Preparation and Characterization of Polyvinylidene Fluoride/Graphene Superhydrophobic Fibrous Films

Chemical functionalization of graphene oxide for improving mechanical and thermal properties of polyurethane composites

Stable, Surfactant‐Free Graphene–Styrene Methylmethacrylate Composite for Ultrafast Lasers

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