Proceedings of the IEEK Conference (대한전자공학회:학술대회논문집)

The Institute of Electronics and Information Engineers (대한전자공학회)
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Curing Behavior of Epoxy Resins Using Aminolysis Products of Waste Polyurethanes as Hardeners

  • Lee, Dai-Soo (Faculty of Chemical Engineering and Technology, Research Center of Industrial Technology, Chonbuk National University) ;
  • Hyun, Song-Won (Faculty of Chemical Engineering and Technology, Research Center of Industrial Technology, Chonbuk National University) ;
  • Seo, Seung-Wook (Faculty of Chemical Engineering and Technology, Research Center of Industrial Technology, Chonbuk National University) ;
  • Kim, Kyoung-Jong (Faculty of Chemical Engineering and Technology, Research Center of Industrial Technology, Chonbuk National University)
  • Published : 2001.10.01
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Abstract

We carried out aminolyses of various rigid polyurethane foams (PUFs) using diethylene triamine and studied application of the aminolysis products as hardners of epoxy resins. Diglycidyl ether of bisphenol A was used for the study on the curing behavior of epoxy resin with the aminolysis product employing differential scanning calorimeter. Curing reaction of the epoxy resin is generally known to be autocatalytic second order reaction. We found that the curing reaction of the epoxy resin with the aminolysis product of rigid PUF did not show autocatalytic characteristics but followed the n-th order kinetics. The activation energy of the curing reaction of the epoxy resin with the aminolysis product of rigid PUF made from sugar based polyol was slightly lower than that of the epoxy resin with aminolysis product of rigid with made from amine based polyol.

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