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Study on MWNTs/Epoxy Resin Composites

Feng Dai

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Abstract

Carbon nanotubes(MWNTs)/epoxy resin nanocomposites were prepared with ultrasonic dispersion and casting molding.The effect of hydroxyl MWNTs content on the reactive activity of composites was studied.Then the flexural and electrical properties were measured.Transmission electron microscope(TEM) was employed to characterize microstructure of the composites.The result showed that the reactive activity of composites enhanced with the increasing content of MWNTs.When MWNTs content was 1%,the flexural strength and modulus reached the best.It was found that the flexural strength and modulus was increased from 143.32MPa and 3563.76MPa of pure resin to 155.79MPa and 3690.45MPa respectively,and the dispersion of MWNTs was uniform in matrix.The volume and surface resistivity of composites decreased about 2 orders of magnitude.

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What this paper is about

Carbon nanotubes(MWNTs)/epoxy resin nanocomposites were prepared with ultrasonic dispersion and casting molding.The effect of hydroxyl MWNTs content on the reactive activity of composites was studied.Then the flexural and electrical properties were measured.Transmission electron microscope(TEM) was employed to characterize microstructure of the composites.The result showed that the reactive activity of composites enhanced with the increasing content of MWNTs.When MWNTs content was 1%,the flexural strength and modulus reached the best.It was found that the flexural strength and modulus was increased from 143.32MPa and 3563.76MPa of pure resin to 155.79MPa and 3690.45MPa respectively,and the dispersion of MWNTs was uniform in matrix.The volume and surface resistivity of composites decreased about 2 orders of magnitude.

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Available abstract

Carbon nanotubes(MWNTs)/epoxy resin nanocomposites were prepared with ultrasonic dispersion and casting molding.The effect of hydroxyl MWNTs content on the reactive activity of composites was studied.Then the flexural and electrical properties were measured.Transmission electron microscope(TEM) was employed to characterize microstructure of the composites.The result showed that the reactive activity of composites enhanced with the increasing content of MWNTs.When MWNTs content was 1%,the flexural strength and modulus reached the best.It was found that the flexural strength and modulus was increased from 143.32MPa and 3563.76MPa of pure resin to 155.79MPa and 3690.45MPa respectively,and the dispersion of MWNTs was uniform in matrix.The volume and surface resistivity of composites decreased about 2 orders of magnitude.

Key concepts: Composite material, Materials science, Flexural strength, Epoxy, Flexural modulus, Nanocomposite, Compression molding, Carbon nanotube

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