Study on preparation and properties of carbon nanotubes/hollow glass microspheres/epoxy syntactic foam

Xingguo Zhang; Bin Ya; Bingkun Huang; Bingwen Zhou; Leizhen Pei; Fei Jia

doi:10.1515/polyeng-2016-0001

Article

Study on preparation and properties of carbon nanotubes/hollow glass microspheres/epoxy syntactic foam

Xingguo Zhang , Bin Ya , Bingkun Huang , Bingwen Zhou , Leizhen Pei and Fei Jia

Published/Copyright: May 6, 2016

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From the journal Journal of Polymer Engineering Volume 37 Issue 1

Abstract

Hollow glass microspheres (HGMs)/epoxy syntactic foam reinforced by multiwalled carbon nanotubes (MWCNTs) was prepared in this study. The effect of MWCNTs on the density, mechanical properties and water absorption of HGMs/epoxy syntactic foam was investigated. Because of the low density and low content of MWCNTs, the density of HGMs/epoxy syntactic foam does not change much with adding MWCNTs. In addition, the compression strength of HGMs/epoxy is enhanced by 17–25% when adding 0.3 wt% MWCNTs. The fracture surfaces of specimens were examined with scanning electron microscopy (SEM), and results indicated that the bridging effect of MWCNTs is the reinforcement mechanism. Analyzing the water absorption testing results, it is concluded that MWCNTs may decrease the water absorption content due to the hydrophobicity. Bigger inorganic ions in salt water could prevent the water diffusion, which results in a decrease of water absorption. In addition, the water absorption rate decreases with the extension of testing time.

Keywords: carbon nanotubes; compression strength; hollow glass microspheres; syntactic foam; water absorption

Funding source: National Natural Science Foundation of China

Award Identifier / Grant number: 51301029

Award Identifier / Grant number: 51375071

Funding statement: The research was financially supported by the National Natural Science Foundation of China (Grant nos. 51301029 and 51375071) and the Fundamental Research Funds for the Central Universities [DUT11RC(3)86].

Acknowledgments:

The research was financially supported by the National Natural Science Foundation of China (Grant nos. 51301029 and 51375071) and the Fundamental Research Funds for the Central Universities [DUT11RC(3)86].

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Received: 2016-1-21

Accepted: 2016-3-23

Published Online: 2016-5-6

Published in Print: 2017-1-1

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Articles in the same Issue

https://doi.org/10.1515/polyeng-2016-0001

Keywords for this article

carbon nanotubes; compression strength; hollow glass microspheres; syntactic foam; water absorption