Structures, electrical and mechanical properties of epoxy composites reinforced with MWCNT-coated basalt fibers

Kim, Myounguk; Lee, Tae-Won; Park, Sunmin; Jeong, Young Gyu

doi:10.1016/j.compositesa.2019.05.011

Cited by 65 publications

(17 citation statements)

References 35 publications

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“…The enhanced interfacial interactions gave a rise to improved dispersion of MWCNTs in the epoxy matrix. Similar results were foundin earlier publications where dispersion of the MWNTs in acetone was increased by adding a nonionic or anionic surfactants to produce epoxy-MWCNTs composites [45][46] Micelles formation disables the van der Waals forces to prevent MWCNTs to form aggregation [47]. FTIR analysis of the epoxy blank, epoxy-MWCNTs, epoxy-MWCNTs SDS, epoxy-MWCNTs CTAB, and epoxy-MWCNTs Tween 80 before and after exposure to electron beam irradiation with a dose of 100 kGy were carried out and presented in Fig.…”

Section: Surface Tensionsupporting

confidence: 91%

Influence of electron accelerator irradiation on epoxy nanocomposites materials for spacecraft structure

Anwar

Lotfy²,

Balboul

et al. 2020

Arab Journal of Nuclear Sciences and Applications

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Different types of surfactants namely, nonionic, anionic and cationic represented by Polyoxyethylene sorbitan monooleate (Tween 80), sodium dodecyl sulfate (SDS), and cetyltrimethylammonium bromide (CTAB) respectively were used to select a proper type of surfactant enhancing dispersion quality of multiwall carbon nanotubes (MWCNTs) in the epoxy resin. In this study, the effect of electron beams whch are one of the most severe space environment threats. The candidate material proposed in this study will be used as a structural space material. The candidate material is characterized by furrier transformation infrared spectroscopy (FTIR) so as to identify the mechanical properties, surface tension, and electrical dispersion measurement. The mechanical results revealed that the strength increases by 10% while adding the CTAB surfactant, however, it decreases by 27% and 32% by adding tween-80 and SDS respectively. The anionic surfactant SDS, despite keeping the stiffness, the reference sample is of lower strength and elongation. The CTAB improves the mechanical properties by improving the strength and stiffness while elongation is significantly decreased by adding any of the surfactants. The surface tension of Tween 80 and anionic surfactant SDS, is σ = 24.4 mN/m while the surface tension in case of the CTAB is σ= 25.4 mN/m. The surface tension and electrical dispersion measurement results reveal that the nonionic surfactant Tween 80 led to a uniform dispersion of MWCNTs in the epoxy than other surfactants. The effect of 100-kGy irradiation via electron beam on structure and its electrical properties of the epoxy composites was studied. Improving the dispersion quality of the MWCNTs in epoxy nanocomposite materials leads to utilizing these materials in spacecraft structure.

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Section: Surface Tensionsupporting

confidence: 91%

Influence of electron accelerator irradiation on epoxy nanocomposites materials for spacecraft structure

Anwar

Lotfy²,

Balboul

et al. 2020

Arab Journal of Nuclear Sciences and Applications

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“…The most popular filler currently used to modify the reinforcement of epoxy resin matrix composites is carbon nanotubes. A number of researchers have investigated the possibility of using them to modify various fibers, through the most commonly used are fiberglass [47] and carbon fiber [48] in aviation to cotton fiber [49] and basalt fiber [50]. All researchers obtained epoxy composites with similar conductivities ranging from 10 −3 to 10 −1 S/cm but with significantly different filler contents used to modify the fibers.…”

Section: Reinforcement Modification and Its Effect On The Electrical ...mentioning

confidence: 99%

Methods for Enhancing the Electrical Properties of Epoxy Matrix Composites

et al. 2022

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This paper presents ways to modify epoxy resin matrix composites to increase their electrical conductivity. Good electrical properties are particularly important for materials used in the construction of vehicles (cars, trains, airplanes) and other objects exposed to lightning (e.g., wind turbines). When the hull plating is made of an electrical conductor (e.g., metal alloys) it acts as a Faraday cage and upon lightning discharge the electrical charge does not cause damage to the structure. Epoxy-resin-based composites have recently been frequently used to reduce the weight of structures, but due to the insulating properties of the resin, various modifications must be applied to improve the conductivity of the composite. The methods to improve the conductivity have been categorized into three groups: modification of the matrix with conductive fillers, modification of the composite reinforcement, and addition of layers with increased electrical conductivity to the composite.

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“…Meanwhile, dip coating is the same interface contact mode between filler and polymer. Kim et al firstly dipped basalt fiber in MWCNT dispersion to prepare conductive composite filler, then the MWCNT/basalt fiber was immersed in epoxy to obtain the final MWCNT-coated basalt fiber/epoxy composites [ 94 ]. Through this method, the electrical conductivity of such MWCNT-coated basalt fibers epoxy composites increases significantly from 3.25 × 10 −9 to 1.44 × 10 −1 S cm −1 with increasing dip-dry coating cycle from 0 to 10.…”

Section: Toolboxmentioning

confidence: 99%

“…When using the method of thermal curing, solution mixing is often used to prepare a mixed system of filler and polymer or accompanied by hot pressing or other post-treatment methods. Take the most frequently used epoxy resin as an example, no matter it is simply mixing epoxy with filler and then curing or more complex strategy through film casting-filtration-hot pressing-thermal curing, curing method is often used together with other methods [ 94 , 140 ].…”

Section: Toolboxmentioning

confidence: 99%

“Toolbox” for the Processing of Functional Polymer Composites

et al. 2021

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The processing methods of functional polymer composites (FPCs) are systematically summarized in “Toolbox”. The relationship of processing method-structure-property is discussed and the selection and combination of tools in processing among different FPCs are analyzed. A promising prospect is provided regarding the design principle for high performance FPCs for further investigation. Functional polymer composites (FPCs) have attracted increasing attention in recent decades due to their great potential in delivering a wide range of functionalities. These functionalities are largely determined by functional fillers and their network morphology in polymer matrix. In recent years, a large number of studies on morphology control and interfacial modification have been reported, where numerous preparation methods and exciting performance of FPCs have been reported. Despite the fact that these FPCs have many similarities because they are all consisting of functional inorganic fillers and polymer matrices, review on the overall progress of FPCs is still missing, and especially the overall processing strategy for these composites is urgently needed. Herein, a “Toolbox” for the processing of FPCs is proposed to summarize and analyze the overall processing strategies and corresponding morphology evolution for FPCs. From this perspective, the morphological control methods already utilized for various FPCs are systematically reviewed, so that guidelines or even predictions on the processing strategies of various FPCs as well as multi-functional polymer composites could be given. This review should be able to provide interesting insights for the field of FPCs and boost future intelligent design of various FPCs. Supplementary Information The online version contains supplementary material available at 10.1007/s40820-021-00774-5.

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Structures, electrical and mechanical properties of epoxy composites reinforced with MWCNT-coated basalt fibers

Cited by 65 publications

References 35 publications

Influence of electron accelerator irradiation on epoxy nanocomposites materials for spacecraft structure

Influence of electron accelerator irradiation on epoxy nanocomposites materials for spacecraft structure

Methods for Enhancing the Electrical Properties of Epoxy Matrix Composites

“Toolbox” for the Processing of Functional Polymer Composites

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