A comparative study on effects of natural and synthesised nano-clays on the fire and mechanical properties of epoxy composites

In this research, two nano-clays, halloysite nano-tube (HNT) and layered double hydroxide (LDH), were employed to compare fire and mechanical properties of epoxy composites based on ammonium polyphosphate (APP) and each of the two nano-clays. The results showed that the combination of APP and nano-c...

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Bibliographic Details
Published inComposites. Part B, Engineering Vol. 165; pp. 65 - 74
Main Authors Rajaei, M., Kim, N.K., Bickerton, S., Bhattacharyya, D.
Format Journal Article
LanguageEnglish
Published Elsevier Ltd 15.05.2019
Subjects
Mechanical properties
Nano-structures
Thermal properties
Thermosetting resin
Thermal properties
Mechanical properties
Nano-structures
Thermosetting resin
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Summary:In this research, two nano-clays, halloysite nano-tube (HNT) and layered double hydroxide (LDH), were employed to compare fire and mechanical properties of epoxy composites based on ammonium polyphosphate (APP) and each of the two nano-clays. The results showed that the combination of APP and nano-clay achieved a significant reduction (approx. 87%) in peak heat release rate of epoxy resin. The comparative analysis also demonstrated that the total heat release of the composite including HNT was approx. 18% lower than that of the LDH based composite. Moreover, HNT generated higher tensile properties in the composite. Overall, the HNT (∼1.5 USD/kg) is a more cost-effective nano-clay than LDH (∼180 USD/kg) to effectively improve the fire resistance and maintain the mechanical properties of epoxy composites.
ISSN:1359-8368
1879-1069
DOI:10.1016/j.compositesb.2018.11.089