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Open-Cell Rigid Polyurethane Foam Using Reactive Cell Opening Agents

반응성 기포개방제를 이용한 개방기포형 경질우레탄폼

  • Ahn, WonSool (Department of Chemical Engineering, Keimyung University)
  • 안원술 (계명대학교 화학공학과)
  • Received : 2013.04.22
  • Accepted : 2013.05.09
  • Published : 2013.05.31

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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