Title

Thermal And Mechanical Properties Of Epoxy Composites Reinforced By A Natural Hydrophobic Sand

Keywords

Composites; Epoxy resin; Flexural property; Sand particle; Thermal property

Abstract

If a low weight percentage of crude fine fillers can improve properties of polymer materials directly without complicated chemical treatment process involved, it will be significant for many industrial applications. Our previous study indicated that a kind of Cancun natural sand could be an effective filler material for polymer composites. In this current work, the epoxy composites reinforced by this kind of natural sand particles were prepared and thermal and mechanical properties of the composites containing up to 5 wt % of the sand particles were characterized. Results showed that the highest flexural strength appears in the epoxy composite containing 1 wt % sand particles. A damage model was used to interpret the flexural properties, which showed an acceptable agreement with the experimental results. The glass transition temperature, high temperature storage modulus, and dimensional stability of the sand/epoxy composites monotonically increased with the addition of the sand particles. The sand particle/epoxy composites also displayed a noticeable enhancement in thermal conductivity. Theoretical analysis showed that in addition to conduction, other heat transport mechanisms played roles in the improved heat transmission through the composites. As a natural porous micron-scale material, Cancun sand has the potential for applications in cost-effective composites with enhanced mechanical and thermal properties. © 2008 Wiley Periodicals, Inc.

Publication Date

7-5-2008

Publication Title

Journal of Applied Polymer Science

Volume

109

Issue

1

Number of Pages

247-255

Document Type

Article

Personal Identifier

scopus

DOI Link

https://doi.org/10.1002/app.27321

Socpus ID

55849147401 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/55849147401

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