標題: Study on curing kinetics and curing mechanism of epoxy resin based on diglycidyl ether of bisphenol A and melamine phosphate
作者: Chen, WY
Wang, YZ
Chang, FC
應用化學系
Department of Applied Chemistry
關鍵字: epoxy resin;melamine phosphate;kinetics (polym.);FTIR;activation energy
公開日期: 15-Apr-2004
摘要: The curing kinetics of the diglycidyl ether of bisphenol A/melamine phosphate (DGEBA/MP) was analyzed by the DSC technique. The Kissinger and Flynn-Wall-Ozawa methods were applied to determine the dynamic kinetics of the DGEBA/MP system. The activation energies obtained by these two methods were 83.9 and 85.6 kJ/mol, respectively. An autocatalytic equation was applied to determine the isothermal curing kinetics of the DGEBA/MP system. The DGEBA/MP system exhibits autocatalytic behavior in the isothermal curing procedure, whose kinetics fits well with the autocatalytic mechanism. The obtained isothermal curing activation energy of the DGEBA/MP system was 110.0 kJ/mol. The curing mechanism of DGEBA with melamine phosphate was investigated using FTIR, C-13 solid-state NMR, and P-31 solid-state NMR. It involved an epoxide-amine reaction, etherification of phosphoric acid and epoxy, dehydration, and thermal oxidation of the hydroxyl group of the DGEBA/MP system. (C) 2004 Wiley Periodicals, Inc.
URI: http://hdl.handle.net/11536/26869
ISSN: 0021-8995
期刊: JOURNAL OF APPLIED POLYMER SCIENCE
Volume: 92
Issue: 2
起始頁: 892
結束頁: 900
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