On improvement of mechanical and thermo-mechanical properties of glass fabric/epoxy composites by incorporating CNT-Al2O3hybrids

Weikang Li; Anthony Dichiara; Junwei Zha; Zhongqing Su; Jinbo Bai

doi:10.1016/j.compscitech.2014.08.016

On improvement of mechanical and thermo-mechanical properties of glass fabric/epoxy composites by incorporating CNT-Al₂O₃hybrids

Weikang Li, Anthony Dichiara, Junwei Zha, Zhongqing Su, Jinbo Bai

Research output: Journal article publication › Journal article › Academic research › peer-review

75 Citations (Scopus)

Abstract

The multi-scale hybridization of carbon nanotubes (CNTs) with micro-particles in polymers offers new opportunity to develop high performance multifunctional composites. In this study, hybrid fillers comprised of CNTs directly grown on alumina micro-spheres by chemical vapor deposition were incorporated into epoxy matrix that was then reinforced with woven glass fibers. The hierarchical composites with 0.5. wt.% hybrid loading was observed to exhibit an improvement of 19% and 11% in flexural modulus and interlaminar shear strength, respectively. Moreover, the glass transition temperature was increased by 15. °C and the storage modulus at 50. °C was enhanced by 20%. These reinforcements are mainly attributed to the improvements of matrix properties resulted from the good dispersion of hybrids and their hindering effect on the formation and development of matrix cracks. This study reveals the potential in improving mechanical and thermo-mechanical properties of the fiber-reinforced composite by using multi-scale carbon hybrids.

Original language	English
Pages (from-to)	36-43
Number of pages	8
Journal	Composites Science and Technology
Volume	103
DOIs	https://doi.org/10.1016/j.compscitech.2014.08.016
Publication status	Published - 28 Oct 2014

Keywords

A. Glass fibers
A. Hybrid composites
B. Mechanical properties

ASJC Scopus subject areas

General Engineering
Ceramics and Composites

More information

10.1016/j.compscitech.2014.08.016

Cite this

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title = "On improvement of mechanical and thermo-mechanical properties of glass fabric/epoxy composites by incorporating CNT-Al2O3hybrids",

abstract = "The multi-scale hybridization of carbon nanotubes (CNTs) with micro-particles in polymers offers new opportunity to develop high performance multifunctional composites. In this study, hybrid fillers comprised of CNTs directly grown on alumina micro-spheres by chemical vapor deposition were incorporated into epoxy matrix that was then reinforced with woven glass fibers. The hierarchical composites with 0.5. wt.% hybrid loading was observed to exhibit an improvement of 19% and 11% in flexural modulus and interlaminar shear strength, respectively. Moreover, the glass transition temperature was increased by 15. °C and the storage modulus at 50. °C was enhanced by 20%. These reinforcements are mainly attributed to the improvements of matrix properties resulted from the good dispersion of hybrids and their hindering effect on the formation and development of matrix cracks. This study reveals the potential in improving mechanical and thermo-mechanical properties of the fiber-reinforced composite by using multi-scale carbon hybrids.",

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AU - Li, Weikang

AU - Dichiara, Anthony

AU - Zha, Junwei

AU - Su, Zhongqing

AU - Bai, Jinbo

PY - 2014/10/28

Y1 - 2014/10/28

N2 - The multi-scale hybridization of carbon nanotubes (CNTs) with micro-particles in polymers offers new opportunity to develop high performance multifunctional composites. In this study, hybrid fillers comprised of CNTs directly grown on alumina micro-spheres by chemical vapor deposition were incorporated into epoxy matrix that was then reinforced with woven glass fibers. The hierarchical composites with 0.5. wt.% hybrid loading was observed to exhibit an improvement of 19% and 11% in flexural modulus and interlaminar shear strength, respectively. Moreover, the glass transition temperature was increased by 15. °C and the storage modulus at 50. °C was enhanced by 20%. These reinforcements are mainly attributed to the improvements of matrix properties resulted from the good dispersion of hybrids and their hindering effect on the formation and development of matrix cracks. This study reveals the potential in improving mechanical and thermo-mechanical properties of the fiber-reinforced composite by using multi-scale carbon hybrids.

AB - The multi-scale hybridization of carbon nanotubes (CNTs) with micro-particles in polymers offers new opportunity to develop high performance multifunctional composites. In this study, hybrid fillers comprised of CNTs directly grown on alumina micro-spheres by chemical vapor deposition were incorporated into epoxy matrix that was then reinforced with woven glass fibers. The hierarchical composites with 0.5. wt.% hybrid loading was observed to exhibit an improvement of 19% and 11% in flexural modulus and interlaminar shear strength, respectively. Moreover, the glass transition temperature was increased by 15. °C and the storage modulus at 50. °C was enhanced by 20%. These reinforcements are mainly attributed to the improvements of matrix properties resulted from the good dispersion of hybrids and their hindering effect on the formation and development of matrix cracks. This study reveals the potential in improving mechanical and thermo-mechanical properties of the fiber-reinforced composite by using multi-scale carbon hybrids.

KW - A. Glass fibers

KW - A. Hybrid composites

KW - B. Mechanical properties

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