Noncovalent engineering of carbon nanotube surface by imidazolium ionic liquids: A promising strategy for enhancing thermal conductivity of epoxy composites

Chen, Chao; Li, Xiaojing; Wen, Yue; Liu, Jingwei; Li, Xiongwei; Zeng, Hongxia; Xue, Zhigang; Zhou, Xingping; Xie, Xiaolin

doi:10.1016/j.compositesa.2019.105517

Cited by 43 publications

(11 citation statements)

References 50 publications

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“…[93] Finally, SWCNTs are more convenient than MWCNT, when enhanced tribological characteristics are desired, [95] and many papers report on the dual role of IL, both as curing agent and dispersant. [92] Furthermore, F I G U R E 8 (A) Surface grafting of IL on CNT (adapted from [68,[75][76][77] ) and possible physical interactions of IL with CNT and DGEBAepoxy (adapted from [78,79] ); (B) surface grafting of IL on GO (adapted from [80] ) and possible physical interactions of IL with GO and DGEBAepoxy (adapted from References 81-85). CNT, carbon nanotube; DGEBA, diglycidyl ether of bisphenol A; GO, graphene oxide; IL, ionic liquid Abbreviations: CNT, carbon nanotube; DGEBA, diglycidyl ether of bisphenol A; IL, ionic liquid.…”

Section: Mwcnt and Swcntmentioning

confidence: 99%

Ionic liquid‐functionalized reinforcements in epoxy‐based composites: A systematic review

et al. 2022

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Several high‐performance reinforcements may be used in epoxy‐based composites. These commonly undergo chemical and/or physical treatments to enhance their interfacial interactions with polymer matrices. One recent technology comprises the use of ionic liquids (IL) as compatibilizers. This strategy may result in the development of composite materials with greater performance or multifunctional characteristics. Herein, an overview in the area of IL‐modified reinforcements and their effect on epoxy‐based composites is presented. The PRISMA protocol was followed for the review, and the focus of these studies was on the modification of carbon nanotubes, followed by graphene/graphite nanoplatelets and bio‐fillers. The most used IL were those based on imidazolium cation, especially 1‐butyl‐3‐methylimidazolium chloride. In most cases, when IL are used, the reinforcement displays stronger interactions with the epoxy matrix, depending the treatment route employed. Improved interfacial interactions are cited as the main reason for the improvement in the composite mechanical and thermal performances. It was also found that strategies for using low IL content, or routes that enable recovery of the salts after fiber/particle treatment, are still required, as well as the study of the influence of different amounts/types of IL on the structure of fillers and their relationships with the composite properties.

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Section: Mwcnt and Swcntmentioning

confidence: 99%

Ionic liquid‐functionalized reinforcements in epoxy‐based composites: A systematic review

et al. 2022

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“…SEM images of the surface of EP/AIL-MWCNTs nanocomposites at 2.0 wt.% filler contents are shown in Figure 6 C,D. The synthesis of EP/AIL-MWCNTs nanocomposites is illustrated in Figure 7 A [ 72 ]. Park et al synthesized the [NMIM][Cl], 1-(3-phenyl propyl)-3-methylimidazolium chloride, and 1-(2-(2-(2-hydroxyethoxy)ethoxy)ethyl)-3-methylimidazolium chloride ILs from their precursors and heated at 80 °C for 48 h and then purified in acetone, tetrahydrofuran, and ethyl ether to remove unreacted molecules and further dried in the vacuum oven.…”

Section: Synthesis Of Functional Ionic Liquid-carbon Hybrid Nanomaterialsmentioning

confidence: 99%

Functional Ionic Liquids Decorated Carbon Hybrid Nanomaterials for the Electrochemical Biosensors

et al. 2021

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Ionic liquids are gaining high attention due to their extremely unique physiochemical properties and are being utilized in numerous applications in the field of electrochemistry and bio-nanotechnology. The excellent ionic conductivity and the wide electrochemical window open a new avenue in the construction of electrochemical devices. On the other hand, carbon nanomaterials, such as graphene (GR), graphene oxide (GO), carbon dots (CDs), and carbon nanotubes (CNTs), are highly utilized in electrochemical applications. Since they have a large surface area, high conductivity, stability, and functionality, they are promising in biosensor applications. Nevertheless, the combination of ionic liquids (ILs) and carbon nanomaterials (CNMs) results in the functional ILs-CNMs hybrid nanocomposites with considerably improved surface chemistry and electrochemical properties. Moreover, the high functionality and biocompatibility of ILs favor the high loading of biomolecules on the electrode surface. They extremely enhance the sensitivity of the biosensor that reaches the ability of ultra-low detection limit. This review aims to provide the studies of the synthesis, properties, and bonding of functional ILs-CNMs. Further, their electrochemical sensors and biosensor applications for the detection of numerous analytes are also discussed.

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“…P3HT was attached to the GNS surface through π-π interactions, which changed the charge distribution on the surface of GNS. Thus, the vibration of GNS@P3HT required higher energy and shifted the G band to a higher frequency [48,49].…”

Section: Fabrication Of Gns@p3ht(x) and Gns@p3ht(x)/pvdf Membranesmentioning

confidence: 99%

Interfacial Modulation of Graphene by Polythiophene with Controlled Molecular Weight to Enhance Thermal Conductivity

Wang

Chen

et al. 2021

Membranes

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With a trend of continuing improvement in the development of electronic devices, a problem of serious heat accumulation has emerged which has created the need for more efficient thermal management. Graphene sheets (GNS) have drawn much attention with regard to heat transfer because of their excellent in-plane thermal conductivity; however, the ultrahigh interfacial thermal resistance between graphene lamellae has seriously restricted its practical applications. Herein, we describe heat transfer membranes composed of graphene which have been modified by intrinsic thermally conductive polymers with different molecular weights. The presence of macromolecular surface modifiers not only constructed the graphene heat transfer interface by π–π interactions, but also significantly enhanced the membranes’ in-plane thermal conductivity by utilizing their intrinsic heat transfer properties. Such results indicated that the in-plane thermal conductivity of the fabricated membrane exhibits a high in-plane thermal conductivity of 4.17 W m−1 K−1, which, containing the GNS modified with 6000 g/mol (Mn) of poly(3-hexylthiophene) (P3HT), was 26 times higher that of poly (vinylidene fluoride) (PVDF). The P3HT molecular chain with specific molecular weight can form more matching structure π–π interactions, which promotes thermal conductivity. The investigation of different molecular weights has provided a new pathway for designing effective interfacial structures to relieve interface thermal resistance in thermally conductive membranes.

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Noncovalent engineering of carbon nanotube surface by imidazolium ionic liquids: A promising strategy for enhancing thermal conductivity of epoxy composites

Cited by 43 publications

References 50 publications

Ionic liquid‐functionalized reinforcements in epoxy‐based composites: A systematic review

Ionic liquid‐functionalized reinforcements in epoxy‐based composites: A systematic review

Functional Ionic Liquids Decorated Carbon Hybrid Nanomaterials for the Electrochemical Biosensors

Interfacial Modulation of Graphene by Polythiophene with Controlled Molecular Weight to Enhance Thermal Conductivity

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