Stress transfer efficiency in aligned multi-wall carbon nanotubes sheet/epoxy composites

Tsuda, Terumasa; Ogasawara, Toshio; Moon, Seong‐Yong; Nakamoto, Kengo; Takeda, Nobuo; Shimamura, Yoshinobu; Inoue, Yasuo

doi:10.1016/j.compositesa.2014.07.004

Cited by 17 publications

(5 citation statements)

References 42 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In the case of using sized fiber (B-S-NE and B-S-CNT specimens), more matrix debris were found to stick on the fiber surface as shown in Fig. 11b and c. This observation could be attributed to the high concentration of CNTs inside the sizing agent which improves the carbon fiber sheet/epoxy adhesion [55,56]. On the other hand, in the case of using sized fibers, little amount of epoxy resin were observed inside the fibers since coating the CF with a thin layer of sizing agent might influence their impregnation with the resin matrix.…”

Section: Flexural Behavior and Load-deflection Responsementioning

confidence: 63%

Effect of carbon nanotubes on strengthening of RC beams retrofitted with carbon fiber/epoxy composites

2016

View full text Add to dashboard Cite

Section: Flexural Behavior and Load-deflection Responsementioning

confidence: 63%

Effect of carbon nanotubes on strengthening of RC beams retrofitted with carbon fiber/epoxy composites

2016

View full text Add to dashboard Cite

“…of the FRP composites by increasing the efficiency of load transfer between the fiber and the matrix. Fiber matrix interface plays a vital role in governing the overall properties of the composite and controls the behavior of the system under loading conditions [8]. Graphene (mono-layered, multi-layered) is also attracting the researchers due to its various properties [9][10][11].…”

Section: Introductionmentioning

confidence: 99%

Synergetic Impact of Carbon Nanotube and/or Graphene Reinforcement on the Mechanical Performance of Glass Fiber/Epoxy Composite

Nuli¹,

Fulmali²,

Nagesh³

et al. 2020

MSF

View full text Add to dashboard Cite

The exceptional and distinctive properties of the allotropes of carbonaceous nanomaterials like carbon nanotubes and graphene have attracted many researchers and engineers to enhance the performance of fibrous polymeric composites. This article extrapolates the synergetic impact of carbon nanotube (CNT) and multi-layered graphene (MLG) reinforcement onto the mechanical performance of glass fiber/epoxy composites. Magnetic stirring and ultra-sonication process have been carried out under optimized parameters for incorporation of CNT-MLG into the epoxy polymer. Incorporation of 0.1wt% of carbon nanotube to the glass fiber/epoxy composites enhances a flexural strength of 10% and addition of 0.1 wt. % of multi layered graphene to the glass fiber/ epoxy composites enhances a flexural strength of 6% when differentiated with neat GE. Embodiment of 0.1 wt. % CNT and MLG to the glass fiber/epoxy composites in three different ratios like 1:1, 1:2 and 2:1 showcases a 13%, 12.25% and 14.7% enhancement in the flexural strength respectively with respect to the neat glass fiber/epoxy composites when tested at room temperature. Among them, the ratio 2:1(CNT: MLG) contributes higher strength due to the combined action of high aspect ratio of CNT and higher specific surface area of multi-layered graphene thus, facilitating efficient stress transfer from matrix to the reinforcements. Thermal characterizations have been carried out using differential scanning calorimetry (DSC). The fractography of the samples is examined through the scanning electron microscope.

show abstract

“…As reported by Yang et al, specific monomer structure have major influence on the interaction between the CNT and the polymer, for the noncovalent binding of CNT into composite structures, polymers with a backbone containing aromatic rings can be used. As per Tsuda et al, MWNT can be treated as short fiber for over 20 μm length (aspect ratio > 400) and at the end of the MWNTs the interfacial slippage or debonding area exists. Prolongo et al reported that by charging the CNTs with positive nature (NH 3 + ), better mechanical properties can be obtained as compared to unmodified CNTS.…”

Section: Introductionmentioning

confidence: 99%

Effects of carbon nanotube/polymer interfacial bonding on the long‐term creep performance of nanophased glass fiber/epoxy composites

et al. 2019

View full text Add to dashboard Cite

This article is focused on prediction of the long‐term creep performance of glass fiber/epoxy (GE) composites reinforced with pristine carbon nanotube (CNT) and functionalized carbon nanotube (FCNT). 0.1 wt% of CNT and FCNT are added to GE composites to fabricate CNT‐GE and FCNT‐GE composite laminates, respectively. Flexural tests were carried out at room temperature (RT) and 120°C to assess the effect of environment temperature on the flexural properties of the aforesaid materials. FCNT‐GE showed highest improvement in flexural properties at RT followed by CNT‐GE composite and control GE composite, due to better stress transfer with strong chemical interfacial bonding. By using accelerated deformation at elevated temperature and time‐temperature superposition principle, long‐term creep behavior of GE, CNT‐GE, and FCNT‐GE composites at various reference temperatures (30°C, 60°C, 90°C, and 110°C) has been anticipated. Positive reinforcement efficiency is noted up to ~1010.5 and ~1012.5 years for CNT‐GE and FCNT‐GE, respectively at reference temperature of 30°C, following which it neutralized and moderately became negative. However, at higher temperature this time period is reduced abruptly due to unfavorable thermal stress generation at the CNT/polymer interface. Evaluation of thermomechanical properties were also carried out using dynamic mechanical analysis. Differential scanning calorimetry was used to investigate the variation in glass transition temperature due to CNT/FCNT addition to GE composite. Fractographic study was also carried out to know the mode of failure for CNT‐GE and FCNT‐GE composite flexural tested at room temperature.

show abstract

Stress transfer efficiency in aligned multi-wall carbon nanotubes sheet/epoxy composites

Cited by 17 publications

References 42 publications

Effect of carbon nanotubes on strengthening of RC beams retrofitted with carbon fiber/epoxy composites

Effect of carbon nanotubes on strengthening of RC beams retrofitted with carbon fiber/epoxy composites

Synergetic Impact of Carbon Nanotube and/or Graphene Reinforcement on the Mechanical Performance of Glass Fiber/Epoxy Composite

Effects of carbon nanotube/polymer interfacial bonding on the long‐term creep performance of nanophased glass fiber/epoxy composites

Contact Info

Product

Resources

About