Rigid Polyurethane Foam Production from Palm Oil-Based Epoxidized Diethanolamides |
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| Authors: | C S Lee T L Ooi C H Chuah S Ahmad |
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| Affiliation: | (1) Department of Chemistry, Faculty of Science, University of Malaya, Lembah Pantai, 50603 Kuala Lumpur, Malaysia;(2) Advanced Oleochemical Technology Division, Malaysian Palm Oil Board, P.O. Box 10620, 50720 Kuala Lumpur, Malaysia |
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| Abstract: | A new type of rigid polyurethane foam was produced by incorporating oxazolidone heterocyclic rings on to polyurethane backbones.
Epoxidized diethanolamides were synthesized by reacting palm oil blends of epoxidized palm olein and refined bleached deodorized
palm kernel olein with diethanolamine to produce rigid polyurethane foams. Epoxides, retained in the diethanolamides, reacted
with isocyanate during foam production in the presence of AlCl3–THF complex catalyst to form oxazolidone linkages in the polyurethane network. The carbonyl stretch of oxazolidone was identified
at 1,750 cm−1 through Fourier Transform Infra Red analysis. Chemical modifications of the polyurethane network also improved the thermal
and mechanical properties of the foams. In addition, isocyanate index 1.4 was determined to be the most suitable in the production
of foams from this newly synthesized epoxidized diethanolamides. |
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| Keywords: | Epoxidized diethanolamides Isocyanate index Mechanical Oxazolidone Thermal |
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