Interfacial characterization and reinforcing mechanism of novel carbon nanotube – Carbon fibre hybrid composites

Li, Quanxiang; Church, Jeffrey S.; Naebe, Minoo; Fox, Bronwyn

doi:10.1016/j.carbon.2016.07.058

Cited by 92 publications

(45 citation statements)

References 59 publications

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“…CNTs are known to have large surface area. Their incorporation on the carbon fiber surface will have a significant effect on the interfacial characteristics of CNT grafted carbon fiber/polymer multiscale composites due to: (1) increase in interfacial area which will influence the interfacial adhesion and (2) the change in surface energy of unsized carbon fiber . These changes will affect the way carbon fibers interact with a given polymer matrix after CNT growth on their surface.…”

Section: Resultsmentioning

confidence: 99%

“…Many studies reported in the literature emphasize the fact that the incorporation of CNTs on fiber surface improves the mechanical properties of CNT grafted fiber/polymer composites. However, in most of the cited literature, the conclusions are primarily based on the results of micromechanical and miniaturized testing performed on single fiber/polymer composites such as fiber fragmentation , fiber pull out , fiber push out , nanoindentation , micro‐droplet debond test , etc. A detailed study to relate the improvements observed at microscale to the average bulk properties of multiscale composites through well designed experiments performed on same fiber/polymer combination at micro‐mechanical and bulk level is still lacking to the best of authors’ knowledge.…”

Section: Introductionmentioning

confidence: 99%

“…To this end, a systematic experimental investigation is carried out to study the wettability of unsized and CNT grafted carbon fiber (single filament as well as fabric) with two commonly used polymer resins namely epoxy and polyester through contact angle measurements. Even though polyester is normally used with glass fibers, more recently, efforts have been made to use it with carbon fibers by modifying the fiber surface .…”

Section: Introductionmentioning

confidence: 99%

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Effect of carbon nanotube grafting on the wettability and average mechanical properties of carbon fiber/polymer multiscale composites

2018

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An experimental investigation is performed to relate the wetting behavior of unsized and carbon nanotube (CNT) grafted carbon fibers to the average mechanical properties of unsized and CNT grafted carbon fiber/polymer multiscale composites. Contact angle measurements and single fiber pull out tests show that the choice of polymer matrix plays a crucial role in determining whether the incorporation of CNTs on the fiber surface enhances or degrades the wettability and hence average mechanical properties of carbon fiber/polymer composites. CNT grafting leads to a significant improvement in interfacial shear strength as well as flexural and tensile response of carbon fiber/polymer composites with the epoxy resin. However, incorporation of CNTs on fiber surface has no significant effect on the average mechanical properties of carbon fiber/polyester composites. Moreover, it is recorded that the relative enhancement in properties after CNT grafting depends on the fiber orientation in CNT grafted carbon fiber/epoxy composites. POLYM. COMPOS., 39:E1184–E1195, 2018. © 2018 Society of Plastics Engineers

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Effect of carbon nanotube grafting on the wettability and average mechanical properties of carbon fiber/polymer multiscale composites

2018

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“…Quanxiang Li showed electrospraying of CNT on fiber is a useful method that tensile testing and Weibull analysis this process did not decrease in the fiber tensile strength. Furthermore, Weibull modulus investigation showed CNT deposition by this technique did not lead to more weak points as compared to the untreated fibers (Li, Church, Naebe, & Fox, ).…”

Section: Resultsmentioning

confidence: 97%

Development of electrically conductive hybrid nanofibers based on CNT‐polyurethane nanocomposite for cardiac tissue engineering

Shokraei

Asadpour

Shokraei

et al. 2019

Microscopy Res & Technique

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Conductive nanofibers have been considered as one of the most interesting and promising candidate scaffolds for cardiac patch applications with capability to improve cell–cell communication. Here, we successfully fabricated electroconductive nanofibrous patches by simultaneous electrospray of multiwalled carbon nanotubes (MWCNTs) on polyurethane nanofibers. A series of CNT/PU nanocomposites with different weight ratios (2:10, 3:10, and 6:10wt%) were obtained. Scanning electron microscopy, conductivity analysis, water contact angle measurements, and tensile tests were used to characterize the scaffolds. FESEM showed that CNTs were adhered on PU nanofibers and created an interconnected web‐like structures. The SEM images also revealed that the diameters of nanofibers were decreased by increasing CNTs. The electrical conductivity, tensile strength, Young's modulus, and hydrophilicity of CNT/PU nanocomposites also enhanced after adding CNTs. The scaffolds revealed suitable cytocompatibility for H9c2 cells and human umbilical vein endothelial cells (HUVECs). This study indicated that simultaneous electrospinning and electrospray can be used to fabricate conductive CNT/PUnanofibers, resulting in better cytocompatibility and improved interactions between the scaffold and cardiomyoblasts.

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“…But very recently, Westover et al (2016) reported that vertically aligned carbon nanotubes shown variation friction coefficients due to the restructuring. By the way, many recent studies have focused on carbon nanotubes' modified kinds of antifriction and antiwear materials and have benefits for reduction friction and wear (Li et al 2016;Cui et al 2013b;Liu et al 2017). In one word, carbon nonotubes shown superlubcity might be using nanoscale mechanics but are more complicated in mocroscale related on state of itself.…”

Section: Introductionmentioning

confidence: 99%

Assembling of carbon nanotubes film responding to significant reduction wear and friction on steel surface

Zhang

Xue

et al. 2017

Appl Nanosci

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Friction properties of carbon nanotubes have been widely studied and reported, however, the friction properties of carbon nanotubes related on state of itself. It is showing superlubricity under nanoscale, but indicates high shear adhesion as aligned carbon nanotube film. However, friction properties under high load (which is commonly in industry) of carbon nanotube films are seldom reported. In this paper, carbon nanotube films, via mechanical rubbing method, were obtained and its tribology properties were investigated at high load of 5 to 15 N. Though different couple pairs were employed, the friction coefficients of carbon nanotube films are nearly the same. Compared with bare stainless steel, friction coefficients and wear rates under carbon nanotube films lubrication reduced to, at least, 1/5 and 1/(4.3-14.5), respectively. Friction test as well as structure study were carried out to reveal the mechanism of the significant reduction wear and friction on steel surface. One can conclude that sliding and densifying of carbon nanotubes at sliding interface contribute to the sufficient decrease of friction coefficients and wear rates.

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Interfacial characterization and reinforcing mechanism of novel carbon nanotube – Carbon fibre hybrid composites

Cited by 92 publications

References 59 publications

Effect of carbon nanotube grafting on the wettability and average mechanical properties of carbon fiber/polymer multiscale composites

Effect of carbon nanotube grafting on the wettability and average mechanical properties of carbon fiber/polymer multiscale composites

Development of electrically conductive hybrid nanofibers based on CNT‐polyurethane nanocomposite for cardiac tissue engineering

Assembling of carbon nanotubes film responding to significant reduction wear and friction on steel surface

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