The effect of choline-based ionic liquid on CNTs' arrangement in epoxy resin matrix

Gholami, Hormoz; Arab, Hamed; Mokhtarifar, Maryam; Maghrebi, Morteza; Baniadam, Majid

doi:10.1016/j.matdes.2015.11.096

Cited by 18 publications

(13 citation statements)

References 30 publications

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Section: Type Of Reinforcementsmentioning

confidence: 99%

“…[89] Despite the poorer mechanical behavior caused by the weaker interface between the components, lower thermal stability can be minimized by using an optimized content of both filler and IL. [19,90,91,[94][95][96] Another interesting characteristic of the IL-modified epoxy composites is their higher transparency, compared to the composites without the salts. As a consequence, in some studies, when epoxy resin was cured with IL, the composites were also suitable to be used as coatings.…”

Section: Mwcnt and Swcntmentioning

confidence: 99%

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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: Type Of Reinforcementsmentioning

confidence: 99%

Section: Mwcnt and Swcntmentioning

confidence: 99%

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

et al. 2022

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“…To overcome the relatively poor impact resistance and environmental stress-cracking resistance of epoxy condensates, the addition of inorganic nanoparticles, glass fibers, graphene, and CNTs to epoxy resin has been extensively explored [ 20 , 21 , 22 , 23 , 24 , 25 ]. Particularly, using modified CNTs as fillers to prepare CNTs/epoxy nanocomposites has been reported [ 26 , 27 ]. For example, Akram et al constructed epoxy nanocomposites with polyacrylonitrile/multi-walled CNTs and a polyacrylonitrile/carbon nanofiber aerogels scaffold [ 28 ].…”

Section: Introductionmentioning

confidence: 99%

Rapid Preparation of MWCNTs/Epoxy Resin Nanocomposites by Photoinduced Frontal Polymerization

et al. 2020

Materials

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Due to their excellent mechanical and thermal properties and medium resistance, epoxy/carbon nanotubes and nanocomposites have been widely used in many fields. However, the conventional thermosetting process is not only time- and energy-consuming, but also causes the agglomeration of nanofillers, which leads to unsatisfactory properties of the obtained composites. In this study, multi-walled carbon nanotubes (MWCNTs)/epoxy nanocomposites were prepared using UV photoinduced frontal polymerization (PIFP) in a rapid fashion. The addition of MWCNTs modified by a surface carboxylation reaction was found to enhance the impact strength and heat resistance of the epoxy matrix effectively. The experimental results indicate that with 0.4 wt % loading of modified MWCNTs, increases of 462.23% in the impact strength and 57.3 °C in the glass transition temperature Tg were achieved. A high-performance nanocomposite was prepared in only a few minutes using the PIFP approach. Considering its fast, energy-saving, and environmentally friendly production, the PIFP approach displays considerable potential in the field of the fast preparation, repair, and deep curing of nanocomposites and coatings.

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“…DESs share most of the properties of ionic liquids, such as negligible vapor pressure and wide electrochemical potential windows. In addition, DESs display some unique features, such as: ease of production; biocompatibility and biodegradability; low costs; and non-toxicity [37,38,39].…”

Section: Introductionmentioning

confidence: 99%

Cold-Cured Epoxy-Based Organic–Inorganic Hybrid Resins Containing Deep Eutectic Solvents

Lionetto

Timo

2018

Polymers

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The development of improved cold-cured resins, to be used as either adhesives or matrices for FRP (fiber reinforced polymer) composites employed in the construction industry, has become the focus of several academic and industrial research projects. It is expected that the use of nano-structured organic–inorganic hybrid materials could represent a realistic alternative to commercial epoxy-based resins due to their superior properties, especially in terms of higher durability against: moisture, temperatures, harsh environments, and fire. In this context, organic–inorganic epoxy hybrids were synthesized by a modified sol–gel method without the addition of water. The experimental formulations were prepared starting from a mixture of a silane-functionalized epoxy resin, alkoxysilane components and a deep eutectic solvent (DES) based on a blend of choline chloride and urea. The latter was added in two different loads in order to analyze in depth its effect as a promoter for an effective dispersion of silica nano-phases, formed through hydrolysis and condensation reactions, into the cross-linked epoxy network. The produced formulations were cold-cured for different time spans in the presence of two hardeners, both suitable for a curing process at ambient temperature. In this first part of a wider experimental program, several analyses were carried out on the liquid (rheological and calorimetric) and cold-cured (calorimetric, thermogravimetric, dynamic-mechanical, flexural mechanical, and morphological) systems to evaluate and quantify the improvement in properties brought about by the presence of two different phases (organic and inorganic) in the same epoxy-based hybrid system.

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The effect of choline-based ionic liquid on CNTs' arrangement in epoxy resin matrix

Cited by 18 publications

References 30 publications

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

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

Rapid Preparation of MWCNTs/Epoxy Resin Nanocomposites by Photoinduced Frontal Polymerization

Cold-Cured Epoxy-Based Organic–Inorganic Hybrid Resins Containing Deep Eutectic Solvents

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