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resin glass epoxy

 
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MessagePosté le: Ven 22 Déc - 03:57 (2017)    Sujet du message: resin glass epoxy Répondre en citant

Epoxy resin glass epoxy indicators of the current indicators of the current system of industrial epoxy resin has a variety of models, each with different properties, performance can be determined by the characteristics of indicators. (1) Epoxy equivalent (or epoxy value): Epoxy equivalent (or epoxy value) is the most important characteristic index of epoxy resin, which indicates the content of epoxy in resin molecule. Epoxy equivalent means the mass grams of epoxy resin containing 1 mol of epoxy groups, expressed as EEW. The epoxy value refers to the number of moles of epoxy groups in 100 g of epoxy resin. Determination of epoxy equivalent of chemical and spectroscopic methods. The international common chemical analysis perchloric acid method, there are other hydrochloric acid acetone method, a variety of epoxy resin models, each with different properties, the performance can be determined by the characteristics of indicators. Epoxy equivalent (or epoxy value): Epoxy equivalent (or epoxy value) is the most important characteristic of epoxy resin, indicating the content of epoxy in resin molecule. Epoxy equivalent means the mass grams of epoxy resin containing 1 mol of epoxy groups, expressed as EEW. The epoxy value refers to the number of moles of epoxy groups in 100 g of epoxy resin. epoxy value Determination of epoxy equivalent of chemical and spectroscopic methods. The internationally accepted method of chemical analysis of perchloric acid method, there are other hydrochloric acid acetone method, pyridine hydrochloride and hydrochloric acid dioxane method. Acetone method is simple, easy to get reagents, easy to use. The resin's epoxy equivalent can be calculated from the amount of hydrochloric acid consumed by the resin.
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MessagePosté le: Ven 22 Déc - 03:57 (2017)    Sujet du message: Publicité

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