Degradation of epoxy polymers: Part 4—Thermal degradation of bisphenol-A diglycidyl ether cured with ethylene diamine
Abstract
The principal characteristics and products of thermal degradation of a commercial epoxy resin prepared by reaction of 2,2-bis-(4′-hydroxyl phenyl)propane (bisphenol-A) with 1-chloro-2,3-epoxy propane (epichlorhydrin) and cross-linked (cured) with ethylene diamine have been studied. The principal products are small amounts of hydrogen and methane, ethane, propene, ammonia, methylamine with a trace of trimethylamine, water, phenol, cresols, 4-isopropyl phenol, 4-isopropenyl phenol, bisphenol-A, 2-(benzo-fur-5-yl)-2-(p-hydroxy phenyl)propane and 2-(benzo-pyran-6-yl)-2-(p-hydroxy phenyl)propane. These products appear from about 300°C and mechanisms for their formation are proposed.
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Experimental study on the thermal decomposition of epoxy/anhydride thermoset matrix in composite insulator core rods
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Hygrothermal aging of particle-filled epoxy-based composites
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Chemical structure construction of DOPO-containing compounds for flame retardancy of epoxy resin: A review
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Preparation and properties of hydrophobic and transparent wood
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