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http://dx.doi.org/10.5762/KAIS.2013.14.5.2524

Open-Cell Rigid Polyurethane Foam Using Reactive Cell Opening Agents  

Ahn, WonSool (Department of Chemical Engineering, Keimyung University)
Publication Information
Journal of the Korea Academia-Industrial cooperation Society / v.14, no.5, 2013 , pp. 2524-2528 More about this Journal
Abstract
Cell opening characteristics dependent on the cell openers for the conventional formulation of a closed-cell polyurethane foam (PUF) was studied using 1-butanol and lithium salt of 12-hydroxystearic acid (Li-12HSA) as the reactive cell opening agents. While cell openining content of only 10.5 % was obtained for the sample with 4 phr of 1-butanol as the single reactive cell opener, that of 98.0% could be obtained for the sample with 2 phr of Li-12HSA as the reactive co-cell opener. As the results, it showed that a fully open-cell rigid PUF could be obtained by introducing a novel reactive cell opener, having a functional group able to form a bulky side-chain on the urethane networks, without severe loss of mechanical properties of the closed-cell PUF like cell size, bulk density, and thermal conductivity.
Keywords
Open-cell; Rigid polyurethane foam; Reactive cell opener;
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