Journal ArticleDOI
Fabrication and characterization of carbon/epoxy composites mixed with multi-walled carbon nanotubes
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TLDR
In this article, a high-intensity ultrasonic liquid processor was used to obtain a homogeneous mixture of epoxy resin and multi-walled carbon nanotubes (CNTs).Abstract:
In this study, a high-intensity ultrasonic liquid processor was used to obtain a homogeneous mixture of epoxy resin and multi-walled carbon nanotubes (CNTs). The CNTs were infused into epon 862 epoxy resin through sonic cavitation and then mixed with W curing agent using a high-speed mechanical agitator. The trapped air and reaction volatiles were removed from the mixture using a high vacuum. Flexural tests and fracture toughness tests were performed on unfilled and CNT-filled epoxy to identify the effect of adding CNTs on the mechanical properties of epoxy. The highest improvement in strength and fracture toughness was obtained with 0.3 wt% CNT loading. The nanophased matrix filled with 0.3 wt% CNT was then used with weave carbon fabric in a vacuum-assisted resin transfer molding (VARTM) set up to fabricate composite panels. Flexural tests, thermogravimetric analysis (TGA), and dynamic mechanical analysis (DMA) were performed to evaluate the effectiveness of adding CNTs on the mechanical and thermal properties of the composite. The glass transition temperature, decomposition temperature, and flexural strengths were improved by infusing CNTs. Based on the experimental result, a linear damage model has been combined with the Weibull distribution function to establish a constitutive equation for neat and nanophased carbon/epoxy. Simulated result show that that infusing CNTs increases Weiubll scale parameter, but decrease Weibull shape parameter.read more
Citations
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Journal ArticleDOI
Carbon nanotube-based hierarchical composites: a review
TL;DR: In this article, two alternative strategies for forming CNT-based hierarchical composites are contrasted, the dispersion of CNTs into the composite matrix and their direct attachment onto the primary fibre surface.
Journal ArticleDOI
High-Performance Epoxy Nanocomposites Reinforced with Three-Dimensional Carbon Nanotube Sponge for Electromagnetic Interference Shielding
TL;DR: In this article, a light-weight and high-performance electromagnetic interference (EMI)-shielding epoxy nanocomposites are prepared by an infiltration method using a 3D carbon nanotube (CNT) sponge as the 3D reinforcement and conducting framework.
Journal ArticleDOI
Processing, characterization, and modeling of carbon nanotube-reinforced multiscale composites
TL;DR: In this paper, the effects of sonication time on the mechanical properties of multiscale composites, which contain reinforcements at varying scales, were studied, and a combination of Halpin-Tsai equations and woven fiber micromechanics was used in hierarchy to predict the structural properties of multi-scale composites.
Journal ArticleDOI
Mechanical properties of graphene nanoplatelet/epoxy composites
TL;DR: In this paper, the nanoindentation was used to determine modulus and creep compliance for GNP/epoxy composites and the GNP aspect ratio was confirmed to be similar to that of the as-received material by using the percolation threshold measured from electrical resistivity measurements.
Journal ArticleDOI
Improved fracture toughness of carbon fiber composite functionalized with multi walled carbon nanotubes
TL;DR: In this article, a woven carbon fiber (CF) laminae is functionalized with carbon nanotubes (CNTs) to test the hypothesis that growing CNTs on CF would enhance the properties of polymeric carbon composites.
References
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Journal ArticleDOI
Influence of different carbon nanotubes on the mechanical properties of epoxy matrix composites – A comparative study
TL;DR: In this paper, the authors evaluated different types of nanofillers applied, their influence on the mechanical properties of epoxy-based nanocomposites and the relevance of surface functionalisation.
Journal ArticleDOI
Synthesis, thermal, mechanical and rheological properties of multiwall carbon nanotube/waterborne polyurethane nanocomposite
Hsu-Chiang Kuan,Chen-Chi M. Ma,Wei-Ping Chang,Siu-Ming Yuen,Hsin-Ho Wu,Tzong-Ming Lee,Tzong-Ming Lee +6 more
TL;DR: In this paper, a novel nanocomposite consisting of multi-wall carbon nanotube (CNT)/waterborne polyurethane (WPU) nanocompositionite has been successfully prepared.
Journal ArticleDOI
Modification of epoxy resin using reactive liquid (ATBN) rubber
N. Chikhi,S. Fellahi,M. Bakar +2 more
TL;DR: In this article, liquid amine-terminated butadiene acrylonitrile (ATBN) copolymers were added at different contents to improve the toughness of diglycidyl ether of bisphenol A epoxy resins using polyaminoimidazoline as a curing agent.
Journal ArticleDOI
Mechanical and physical properties of epoxy composites reinforced by vapor grown carbon nanofibers
TL;DR: In this paper, the electrical and mechanical properties of the epoxy-VGCF nanocomposite sheets with different weight percentages of VGCFs were discussed, and the results were that both had maximum tensile strength and Young's modulus at 5.5% for both materials and reduced the fracture strain with increasing filler content.
Journal ArticleDOI
Deformation–morphology correlations in electrically conductive carbon nanotube—thermoplastic polyurethane nanocomposites
TL;DR: In this paper, a small amount of multiwall carbon nanotubes (CNTs) to thermoplastic elastomer Morthane produced polymer nanocomposites with high electrical conductivity, low electrical percolation and enhancement of mechanical properties including increased modulus and yield stress.