期刊
COMPOSITES PART B-ENGINEERING
卷 67, 期 -, 页码 521-526出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.compositesb.2014.08.004
关键词
Polyurethane; Foam; Nano-structures; Mechanical properties; Thermal properties
资金
- GUP, Malaysia [Q.J130000.7125.02J87]
- UTM Zamalah
Integration of organic nanoclay into bio-based polyurethane (PU) foam is a promising alternative to enhance the foam's properties via green technology. In this paper, modified diaminopropane montmorillonite (DAP-MMT) nanoclay was introduced into palm oil-based PU foam at different weight loadings, namely, 0, 2, 4, 6, 8, and 10 wt.%, in order to investigate the effects on the mechanical and thermal properties of the foam. Several tests and characterizations were carried out to study the surface morphology, density, compressive strength and thermal stability of the foam. It was found that foam exhibited an exfoliated or intercalated microstructure based on the DAP-MMT contents. The X-ray diffraction analysis showed that below 4 wt.%, the foams displayed exfoliated structures while beyond the value, the foams exhibited the intercalated morphologies. Closed cells with different cell sizes were observed when the DAP-MMT contents were varied. Meanwhile, thermal stability and compressive strength of foams increased with increasing DAP-MMT contents up to 4 wt.%, as shown by thermogravimetry analysis and compression test, respectively. (C) 2014 Elsevier Ltd. All rights reserved.
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