Development of rigid bio-based polyurethane foam reinforced with nanoclay

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, n...

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Bibliographic Details
Published in:Composites. Part B, Engineering Engineering, 2014-12, Vol.67, p.521-526
Main Authors: Nik Pauzi, Nik Nurfatmah Pz, A. Majid, Rohah, Dzulkifli, Mohd Haziq, Yahya, Mohd Yazid
Format: Article
Language:English
Subjects:
A. Foam
A. Nano-structures
Applied sciences
B. Mechanical properties
B. Thermal properties
Cellular
Composites
Compressive strength
Exact sciences and technology
Exfoliation
Foams
Forms of application and semi-finished materials
Morphology
Nanostructure
Plastic foam
Polymer industry, paints, wood
Polyurethane
Polyurethane foam
Technology of polymers
Thermal stability
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Summary: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 10wt.%, 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 4wt.%, 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 4wt.%, as shown by thermogravimetry analysis and compression test, respectively.
ISSN:1359-8368
1879-1069
DOI:10.1016/j.compositesb.2014.08.004