Development of Methods for Determining Molecular Weights of Epoxy Resin

Abstract Molecular weight, as one of the characteristic indexes of the intrinsic structure of epoxy resin, has a decisive impact on the curing process of epoxy resin, the structure of cured products and even the properties of composites. It is an important indicator for the quality evaluation of epo...

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Published inJournal of physics. Conference series Vol. 2460; no. 1; pp. 12115 - 12120
Main Authors Hou, QQ, Liu, X, Gong, W, Xu, F, Zhang, WS, Dong, YZ, Xun, QN, Ji, KJ
Format Journal Article
LanguageEnglish
Published Bristol IOP Publishing 01.04.2023
Subjects
Epoxy resins
Liquid chromatography
Mass spectrometry
Molecular weight
NMR spectroscopy
Physics
Quality assessment
Vapor pressure
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Summary:Abstract Molecular weight, as one of the characteristic indexes of the intrinsic structure of epoxy resin, has a decisive impact on the curing process of epoxy resin, the structure of cured products and even the properties of composites. It is an important indicator for the quality evaluation of epoxy resin. This paper introduces various instrumental analysis techniques for molecular weight testing, including gel permeation chromatography, nuclear magnetic resonance spectroscopy, vapor pressure osmometry and mass spectrometry, and also compares and reviews the principles, characteristics, applications, and problems of each method, and finally looks into the research prospects.
ISSN:1742-6588
1742-6596
DOI:10.1088/1742-6596/2460/1/012115