Preparation and Characterization of the Modified Carbon Nanotubes Enhanced Epoxy Resin Composites

Lee, Kuang Chyi; Yu, Hsin Her; Hwang, Shug-June; Li, Ye Shiu; Cheng, Min; Lin, Chien Chang

doi:10.4028/www.scientific.net/msf.505-507.1075

Cited by 7 publications

(3 citation statements)

References 8 publications

(7 reference statements)

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“…This was mainly due to two reasons: (1) higher CNT content in epoxy resin reduced the wetting and bonding between carbon fiber and J‐272film. (2) Higher CNT content increased the possibility of CNT aggregation and became a defect, 29,30 and the aggregate reduced the efficiency of nano‐reinforcement, resulting in minor decline of shear tensile strength.…”

Section: Resultsmentioning

confidence: 99%

“…This enhanced interface bonding can significantly improve the mechanical properties and stability of the composite. The amino group on the surface of aminated CNT also can improve the compatibility between CNT and J‐272 film 29,30 . NH 2 functionalized multi‐walled CNT were purchased from Chengdu Organic Chemicals Co. Ltd., Chinese Academy of Sciences, and the average outer diameter and the length were 5–30 nm and ~50 μm, respectively.…”

Section: Methodsmentioning

confidence: 99%

“…(2) Higher CNT content increased the possibility of CNT aggregation and became a defect, 29,30 and the aggregate reduced the efficiency of nano-reinforcement, resulting in minor decline of shear tensile strength.…”

Section: Single-lap Shear Testmentioning

confidence: 99%

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Aminated carbon nanotube enhanced composite T‐joints mediating CFRP load‐bearing capacity improvement

Bai,

Yan,

et al. 2023

Polymer Composites

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Adhesive bond is the weakest part of carbon fiber reinforced composites (CFRP) force‐bearing structure. Therefore, enhancing the strength of the adhesive bond is key to improve force‐bearing structure. In this study, adhesive strength of the common CFRP T‐joint was enhanced by aminated carbon nanotubes (CNT). To begin with, shear tensile strength of single‐lap‐joint laminated composites with various CNT content was verified, which peaked at 0.5 wt%. It was indicated that the adhesive bond of deltoid is the weakest area in a T‐joint. CNT was applied in the deltoid of composite T‐joint and pull‐off test was conducted to investigate the progress from the initiation and evolution of damage as well as the final failure. The aminated CNT employed in this study formed an effective load transmission through physical engagement and chemical bonding; the addition of 0.5 wt% CNT effectively enhanced tensile strength and toughness, improving mechanical property of the adhesive bond. This study provides a solution to enhance the adhesive area of CFRP load‐bearing structure with CNT, consequently improve the load‐bearing strength of composite.Highlights Aminated CNT is substantially improve the adhesive strength of CFRP T‐joint. Tensile strength and toughness of T‐joint deltoid was optimized by 0.5 wt% CNT. Effective load transmission through physical engagement and chemical bonding.

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Section: Resultsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

See 1 more Smart Citation

Aminated carbon nanotube enhanced composite T‐joints mediating CFRP load‐bearing capacity improvement

Bai,

Yan,

et al. 2023

Polymer Composites

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Analyzing the quality of carbon nanotube dispersions in polymers using scanning electron microscopy

Kovacs

Andresen

Pauls

et al. 2007

Carbon

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The ability to examine conducting filler particles in an insulating polymer matrix by scanning electron microscopy (SEM) was investigated. The detection of selected secondary electrons is necessary to resolve sub-micron scale filler particles, but not every SEM detector seems to be able to monitor the small changes introduced by the conducting filler particles. The influence of SEM parameters and the challenge of image interpretation in view of the apparent lack of appropriate information in literature are discussed. In accordance with other experiments on light element samples, all monitored electrons seem to be emitted within approximately 50 nm of the sample depth and no information is accessible from deeper regions even by increasing the acceleration voltage.

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Dimethylformamide: an effective dispersant for making ceramic–carbon nanotube composites

et al. 2008

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Carbon nanotube (CNT) and alumina dispersions were prepared separately in dimethylformamide (DMF) and ethanol by ultrasonication. The colloidal stability of the dispersions was monitored and a particle size analysis was performed to evaluate the size range of the agglomerates after different times. DMF was found to be a much more effective dispersant than ethanol for making stable, homogeneous CNT and composite dispersions. Alumina-CNT (4.65 vol%) nanocomposites were sintered in a spark plasma sintering (SPS) furnace. DMF dispersions produced homogeneously distributed and agglomerate-free CNT-alumina nanocomposites with higher electrical conductivity as compared to nanocomposites prepared using ethanol.

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Preparation and Characterization of the Modified Carbon Nanotubes Enhanced Epoxy Resin Composites

Cited by 7 publications

References 8 publications

Aminated carbon nanotube enhanced composite T‐joints mediating CFRP load‐bearing capacity improvement

Aminated carbon nanotube enhanced composite T‐joints mediating CFRP load‐bearing capacity improvement

Analyzing the quality of carbon nanotube dispersions in polymers using scanning electron microscopy

Dimethylformamide: an effective dispersant for making ceramic–carbon nanotube composites

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