Graphene Composites

Shen, Xiao‐Jun; Zeng, Xiaoling; Dang, Chenyang

doi:10.1002/9781119468455.ch53

Cited by 10 publications

(7 citation statements)

References 125 publications

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“…Graphene has been developed using various techniques such as graphite exfoliation, plasma processes, chemical vapor deposition, and chemical or organic synthetic strategies [32]. It is a transparent carbon nanostructure [33] having a high thermal conductivity of 3000-5000 W/mK [34], Young's modulus of ~1 TPa [35], and weak van der Waals forces [36]. Graphene oxide is a graphene-based nanocarbon that is usually formed through the oxidation and stripping of graphite.…”

Section: Graphenementioning

confidence: 99%

Footsteps of graphene filled polymer nanocomposites towards efficient membranes—Present and future

Kausar,

Ahmad

2024

J. Polym. Sci. Eng.

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Due to rising global environmental challenges, air/water pollution treatments technologies especially membrane techniques have been focused. In this context, air or purification membranes have been considered effective for environmental remediations. In the field of polymeric membranes, high performance polymer/graphene nanocomposite membranes have gained increasing research attention. The polymer/graphene nanomaterials exposed several potential benefits when processed as membranes. This review explains utilizations of polymer and graphene derived nanocomposites towards membranes formation and water or gas separation or decontamination properties. Here, different membrane designs have been developed depending upon the polymer types (poly(vinyl alcohol), poly(vinyl chloride), poly(dimethyl siloxane), polysulfone, poly(methyl methacrylate), etc.) and graphene functionalities. Including graphene in polymers influenced membrane microstructure, physical features, molecular permeability or selectivity, and separations. Polysulfone/graphene oxide nanocomposite membranes have been found most efficient with enhanced rejection rate of 90%–95%, high water flux >180 L/m2/h, and desirable water contact angle for water purification purposes. For gas separation membranes, efficient membranes have been reported as polysulfone/graphene oxide and poly(dimethyl siloxane)/graphene oxide nanocomposites. In these membranes, N2, CO2, and other gases permeability have been found higher than even >99.9%. Similarly, higher selectivity values for gases like CO2/CH4 have been observed. Thus, high performance graphene-based nanocomposite membranes possess high potential to overcome the challenges related to water or gas molecular separations.

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Section: Graphenementioning

confidence: 99%

Footsteps of graphene filled polymer nanocomposites towards efficient membranes—Present and future

Kausar,

Ahmad

2024

J. Polym. Sci. Eng.

View full text Add to dashboard Cite

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“…Graphene is a thin layered transparent nanostructure [34]. Graphene has high electron mobilization of around 200,000 cm 2 V −1 s −1 and high thermal conductivity of 3000-5000 W/mK [35]. Excellent mechanical properties of graphene include high Young's modulus of 1 TPa and strength of >200 times than steel [36].…”

Section: Graphenementioning

confidence: 99%

Graphene in gas separation membranes—State-of-the-art and potential spoors

Kausar,

Ahmad

2024

Charact. Appl. Nanomater.

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Graphene and derivatives have been frequently used to form advanced nanocomposites. A very significant utilization of polymer/graphene nanocomposite was found in the membrane sector. The up-to-date overview essentially highpoints the design, features, and advanced functions of graphene nanocomposite membranes towards gas separations. In this concern, pristine thin layer graphene as well as graphene nanocomposites with poly(dimethyl siloxane), polysulfone, poly(methyl methacrylate), polyimide, and other matrices have been perceived as gas separation membranes. In these membranes, the graphene dispersion and interaction with polymers through applying the appropriate processing techniques have led to optimum porosity, pore sizes, and pore distribution, i.e., suitable for selective separation of gaseous molecules. Consequently, the graphene derived nanocomposites brought about numerous revolutions in high performance gas separation membranes. The structural diversity of polymer/graphene nanocomposites has facilitated the membrane selective separation, permeation, and barrier processes especially in the separation of desired gaseous molecules, ions, and contaminants. Future research on the innovative nanoporous graphene-based membrane can overcome design/performance related challenging factors for technical utilizations.

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“…It has a Young's modulus of 1 TPa, which is 200 times stronger than steel [15]. The thermal conductivity and electron mobility of graphene are also found to be significantly high at ~200,000 cm 2 V −1 s −1 , and 3000-5000 W/mK, respectively [16]. Graphene nanosheets have a tendency to wrinkle, due to weak van der Waals forces [17].…”

Section: Graphenementioning

confidence: 99%

Manufacturing Strategies for Graphene Derivative Nanocomposites—Current Status and Fruitions

et al. 2023

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This review article highlights essential manufacturing strategies for the formation of graphene reinforced polymeric nanocomposites. For graphene reinforced thermoplastic, thermosetting and conducting matrix nanomaterials have been manufactured using solution casting, melt blending, in situ polymerization, electrospinning, 3D printing, and several other techniques. Solution processing has been well thought-out as an advantageous technique, relative to melt mixing, in terms of graphene dispersion in polymeric matrices. An in situ polymerization process has also been considered valuable to form homogeneously dispersed polymer/graphene nanocomposites having superior physical characteristics. Nevertheless, the manufacturing techniques for polymer/graphene nanocomposites have relative advantages and disadvantages to be considered for graphene-based nanocomposites. Moreover, numerous challenges need to be overcome to optimize the processing parameters for the fabrication of high-performance polymer/graphene nanocomposites.

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Graphene Composites

Cited by 10 publications

References 125 publications

Footsteps of graphene filled polymer nanocomposites towards efficient membranes—Present and future

Footsteps of graphene filled polymer nanocomposites towards efficient membranes—Present and future

Graphene in gas separation membranes—State-of-the-art and potential spoors

Manufacturing Strategies for Graphene Derivative Nanocomposites—Current Status and Fruitions

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