Thermal and Mechanical Properties of Epoxy/Carbon Fiber Composites Reinforced with Multi-walled Carbon Nanotubes

Kim, Sunkuk; Kim, Jeong Tai; Kim, Hee-Cheul; Rhee, Kyong-Yop; Kathi, John

doi:10.1080/00222348.2011.596799

Cited by 30 publications

(18 citation statements)

References 21 publications

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“…In bias direction, the same composite showed 10% and 15% improvements in tensile modulus and fracture strain but without increasing tensile strength . Another investigation showed modest improvements of 3% and 8% in tensile modulus and strength by incorporating 0.5 wt% MWCNTs . However, in one more study no significant rise in tensile modulus and strength was observed even after incorporating 2 wt% MWCNTs in epoxy matrix but fracture strain increased to 12% .…”

Section: Resultsmentioning

confidence: 92%

“…In addition to mechanical properties, thermal, electrical, and damping characteristics of multiscale composites have also been explored . Different studies using CNTs along with CFs fibers in polymeric matrices have been reported with varying degree of improvement in the mechanical properties compared to traditional CF composites . However, the real extent of improvement is yet to be explored despite the claims, which may be due to the issues related to the dispersion of CNTs, the composite manufacturing technique, and the proper relation of the mechanical properties with the microstructures obtained after incorporating CNTs along with CFs.…”

Section: Introductionmentioning

confidence: 99%

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Toward improved mechanical performance of multiscale carbon fiber and carbon nanotube epoxy composites

et al. 2015

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A novel class of multiscale epoxy composites was developed containing carbon fibers (CFs) and multiwalled carbon nanotubes (MWCNTs) to explore their mutual effect on the mechanical performance of composites. The loading of CFs in composites was kept constant at 60 wt%, while the contents of MWCNTs were increased from 0.5 to 2.0 wt%. MWCNTs were functionalized through acid treatment before incorporating into epoxy matrix to promote dispersion quality. The developed composites were characterized microstructurally by scanning electron microscopy and mechanically by tensile, flexural, edgewise compression, and hardness tests. Homogeneous dispersion of MWCNTs was observed until their loading of 1.5 wt%, which enhanced the mechanical performance of composites. Hardness increased up to 47% while tensile, flexural, and edgewise compressive moduli increased to 40%, 16.3%, and 164%, respectively. Moreover, tensile, flexural, and edgewise compressive strengths showed rises of 45%, 15.2%, and 43%, respectively. The fracture strain increased in both the tensile and flexural tests while it decreased in edgewise compressive tests. Increasing the MWCNTs in composites to 2.0 wt% produced their agglomerates and reversed the rising trend in mechanical properties. POLYM. COMPOS.,

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Section: Resultsmentioning

confidence: 92%

Section: Introductionmentioning

confidence: 99%

Toward improved mechanical performance of multiscale carbon fiber and carbon nanotube epoxy composites

et al. 2015

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“…The interstrand gap also contributes to this insignificant change in tensile properties. 42 Also from Figure 2(a) it is seen that the tensile strength of OCNE/CCF/Al 2 O 3 composites increases initially, attains a maximum value and then decreases with increasing the filler content, indicating that in the strength can be resulted in formation of tortuous fracture path due to the addition of nanoparticles. 43,44 Thus the composite specimen F 6 showed the maximum tensile strength and there was a slight decrease in tensile strength of OCNE/CCF/Al 2 O 3 composites for composite specimens F 7 and F 8 , respectively.…”

Section: Mechanical Propertiesmentioning

confidence: 92%

Study on the effects of nano-aluminum-oxide particulates on mechanical and tribological characteristics of chopped carbon fiber reinforced epoxy composites

Dass

Chauhan

Gaur

2015

Proceedings of the Institution of Mechanical Engineers, Part L:

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An experimental study has been carried out to investigate the mechanical and tribological characteristics of chopped carbon fiber (CCF) reinforced epoxy composites filled with nano-Al 2 O 3 particulates, as a function of fiber and filler contents. The experiments were conducted using a pin-on-disc wear test apparatus under dry sliding conditions. The coefficient of friction and specific wear rate of these composites was determined as a function of applied normal load, sliding velocity, sliding distance, and reinforcement content. The tensile, flexural, and compression strengths of ortho cresol novalac epoxy and chopped carbon fiber (OCNE/CCF) filled composites are found to be within the ranges of MPa. Whereas the tensile, flexural, and compression strengths of OCNE/ CCF/Al 2 O 3 -filled composites are found to be within the ranges of [96][97][98][99][100][101][102][103][104][105][106][107][108][109][110] MPa, respectively. It has been observed that the coefficient of friction decreases and specific wear rate increases with increase in the applied normal loads. Further increases in the fiber (6 wt%) and particle (3 wt%) contents in the epoxy matrix resulted in a decrease of both the mechanical and tribological properties, but remains above that of the CCF reinforced epoxy composites. The worn surfaces of composites were examined with scanning electron microscopy equipped with energy dispersion X-ray analyzer and X-ray diffraction analysis technique to investigate the wear mechanisms.

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“…Carbon fibre/epoxy resin composite has the advantages of an enhanced stiffness to weight ratio and ease of processing. As such, it has been widely used in the aerospace, automotive, construction and marine industries (Cho et al 2008;Kim et al 2012;Li et al 2018). Recently, researchers at the National Museum of Denmark used carbon fibre/epoxy composites in conjunction with self-sealing bags to package underwater organic artefacts (Petriaggi et al 2014;SASMAP Project).…”

Section: Introductionmentioning

confidence: 99%

Temporary consolidation and packaging of fragile cultural relics at underwater archaeological sites to maintain their original state during extraction

et al. 2020

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The flexible sponge/epoxy composite can wrap underwater artefacts in any shape and forms a protective shell after curing, thus effectively wrapping and reinforcing the artefacts. However, the hydroscopicity of the sponge itself limits the underwater application of the sponge/epoxy composite. In this study, a novel polyurethane sponge was prepared by modified with super‐hydrophobic multi‐wall carbon nanotubes (SH‐MWCNTs@PU sponge). Compared with the pristine PU sponge, the water‐contact angle on the surface of SH‐MWCNTs@PU sponges increased from 103.3 ± 1.82 to 152.6 ± 1.54o, and oily epoxy resin was able to cover the surface completely. The study shows that when SH‐MWCNTs@PU sponges/epoxy resin composite material is used underwater, it prevents both water from entering the sponge and also the inside epoxy resin from overflowing into the water. Moreover, the composite materials have excellent toughness after reinforcement under water (flexural strength = 3.56 MPa) and the soft sponges can be moulded to wrap any type of underwater artefacts. In the laboratory, when taking a broken, three‐dimensional blue‐and‐white porcelain pot as a research subject, the entire retrieval process—temporary stabilization, packaging, extraction and reinforcement material removal—was simulated to evaluate systematically all the technological aspects of safely excavating fragile underwater relics.

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Thermal and Mechanical Properties of Epoxy/Carbon Fiber Composites Reinforced with Multi-walled Carbon Nanotubes

Cited by 30 publications

References 21 publications

Toward improved mechanical performance of multiscale carbon fiber and carbon nanotube epoxy composites

Toward improved mechanical performance of multiscale carbon fiber and carbon nanotube epoxy composites

Study on the effects of nano-aluminum-oxide particulates on mechanical and tribological characteristics of chopped carbon fiber reinforced epoxy composites

Temporary consolidation and packaging of fragile cultural relics at underwater archaeological sites to maintain their original state during extraction

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