Synergistic interfacial reinforcement of carbon fiber/polyamide 6 composites using carbon-nanotube-modified silane coating on ZnO-nanorod-grown carbon fiber

Kim, Byeong‐Joo; Cha, Sang-Hyup; Kong, Kyungil; Ji, Wooseok; Park, Hyung Wook

doi:10.1016/j.compscitech.2018.07.015

Cited by 42 publications

(19 citation statements)

References 49 publications

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“…It indicates that f‐CNTs and GSs have good dispersion in polymer matrix. Moreover, silane coupling agent (GPTES) can improve the compatibility between CNTs and epoxy and strengthen the interfacial interaction 27,28 . However, when the addition amount is too high, the self‐aggregation of carbon nanomaterials will have a negative effect on the mechanical properties of EP composites.…”

Section: Resultsmentioning

confidence: 99%

Preparation of flame retardant and conductive epoxy resin composites by incorporating functionalized multi‐walled carbon nanotubes and graphite sheets

Zhang

Jiang

Sun

et al. 2021

Polymers for Advanced Techs

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This work reports our recent efforts on the preparation of functionalized multi‐walled carbon nanotubes (f‐CNTs) and its application in improving the fire, conductive, and mechanical performance of epoxy resin (EP) composites in combination with graphite sheets (GSs). The addition of hybrid carbon nanomaterials can effectively improve the mechanical properties of epoxy. Consequently, when the mass fraction of f‐CNTs/GSs is 3.9 wt%, the limiting oxygen index (LOI) value is increased to 27.4%, and the tensile strength and notched impact strength of epoxy are increased by 33.5% and 44.8%, respectively. Increasing the content of carbon nanomaterials can further improve the flame retardancy and electrical conductivity of EP composites. For the sample containing 11.0 wt% f‐CNTs/GSs, the electrical conductivity is further increased to 1.7 × 10−3 S/cm, which can be regarded as conductive materials. The LOI value is reached to 28.6%, with peak heat release and total heat release reduced by 26.4% and 16.4%, respectively.

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Section: Resultsmentioning

confidence: 99%

Preparation of flame retardant and conductive epoxy resin composites by incorporating functionalized multi‐walled carbon nanotubes and graphite sheets

Zhang

Jiang

Sun

et al. 2021

Polymers for Advanced Techs

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“…This tendency was the same until up to 20 wt % of CNTs (37.84, 92.63, and 128.59 MPa for P1-C20, P2-C20, and P3-C20, respectively) because the PA6 short fiber reduced the empty space and facilitated load transfer in the composites. In addition, the mechanical properties of the carbon fiber-reinforced composites are closely related to the interfacial bonding between the carbon fiber surface and polymer matrix, which is relatively low because of the non-polar surface of the carbon fibers [13,26]. Carbon fibers have some chemical groups, such as carboxyl, epoxy, ether, and hydroxyl groups, which easily form chemical bonds with the amide group of the matrix PA6 [6].…”

Section: Resultsmentioning

confidence: 99%

“…Therefore, in this study, the surface area that can be conjugated with the polymer matrix increased with the introduction of CNTs into the composite material. Because the PA6 polymer formed a strong chemical bond between the CNTs and carbon fiber, the interfacial interaction was enhanced considerably, and the tensile strength was improved [26]. In addition, as CNTs are inserted to the carbon fiber-reinforced nonwoven composites with PA6 fibers, the mechanical stiffness of the samples can be increased due to the entangled CNTs, resulting in an increased tensile strength of the CNT–CF-nonwoven composites [9].…”

Section: Resultsmentioning

confidence: 99%

Preparation and Properties of Carbon Fiber/Carbon Nanotube Wet-Laid Composites

Lee

Youk

et al. 2019

Polymers

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In this study, carbon nanotubes (CNTs) were introduced into carbon fiber (CF) wet-laid composites as functional nano-fillers to fabricate multi-functional composites with improved mechanical, electrical, and thermal properties. It was considered that the wet-laid process was most suitable in order to introduce filler into brittle and rigid carbon fiber substrates, and we established the conditions of the process that could impart dispersibility and bonding between the fibers. We introduced polyamide 6 (PA6) short fiber, which is the same polymeric material as the stacking film, into carbon fiber and CNT mixture to enhance the binding interactions between carbon fiber and CNTs. Various types of CNT-reinforced carbon fiber wet-laid composites with PA6 short fibers were prepared, and the morphology, mechanical and electrical properties of the composites were estimated. As CNT was added to the carbon fiber nonwoven, the electrical conductivity increased by 500% but the tensile strength decreased slightly. By introducing short fibers of the same material as the matrix between CNT–CF wet-laid nonwovens, it was possible to find optimum conditions to increase the electrical conductivity while maintaining mechanical properties.

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“…Interesting approaches combine different sizings, e.g. carbon nanotubes with silane coating and zinc oxide nanorods [37], incorporate sensors and damage detection or self-healing mechanisms [38,39,40].…”

Section: Introductionmentioning

confidence: 99%

Cyclodextrin as sizing for carbon fibers: new bonding mechanism improves adhesion in carbon fiber reinforced epoxy resin

Becker-Staines

Bremser

Tröster

2020

Heliyon

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In this study, β-cyclodextrin was covalently bonded on carbon fibers and its influence through host-guest complex formation was analyzed. Since cyclodextrins act as host molecules for aromatic compounds, complex formations can be performed in carbon fiber reinforced epoxy resins, between the carbon fiber surface and the aromatic compounds of the surrounding plastic. This interface design leads to improved adhesion between fiber and plastic. An increase of the interfacial shear strength from 12 MPa to 38 MPa was detected. It was possible to increase the interfacial shear strength even further, to 41 MPa, through a prior complex formation with one of the plastics components. In addition to the micromechanical analysis, energy-dispersive x-ray spectroscopy and contact angle measurements were performed to confirm the covalent coating of cyclodextrin on the carbon fiber surface.

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Synergistic interfacial reinforcement of carbon fiber/polyamide 6 composites using carbon-nanotube-modified silane coating on ZnO-nanorod-grown carbon fiber

Cited by 42 publications

References 49 publications

Preparation of flame retardant and conductive epoxy resin composites by incorporating functionalized multi‐walled carbon nanotubes and graphite sheets

Preparation of flame retardant and conductive epoxy resin composites by incorporating functionalized multi‐walled carbon nanotubes and graphite sheets

Preparation and Properties of Carbon Fiber/Carbon Nanotube Wet-Laid Composites

Cyclodextrin as sizing for carbon fibers: new bonding mechanism improves adhesion in carbon fiber reinforced epoxy resin

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