Journal ArticleDOI
Curing of epoxy resins with dicyandiamide : reaction behaviour of glycidyl ethers
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TLDR
Etude par chromatographie HPLC des produits obtenus par reaction du phenyl glycidyl ether and d'une resine (DGEBA) avec le dicyandiamide dans le DMF en presence d'un accelerateur (N,N-dimethyl benzylamine) influence de la temperature and du solvant.Abstract:
Etude par chromatographie HPLC des produits obtenus par reaction du phenyl glycidyl ether et d'une resine (DGEBA) avec le dicyandiamide dans le DMF en presence d'un accelerateur (N,N-dimethyl benzylamine). Influence de la temperature et du solvantread more
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Control of reactions and network structures of epoxy thermosets
TL;DR: In this paper, a review of the chemistry of epoxy resins, an almost century-old chemistry, is also involved in the movement of macromolecular chemistry and how this type of control affects the structure of the growing network.
Journal ArticleDOI
Thermosetting resin based on epoxidised linseed oil and bio-derived crosslinker
TL;DR: In this article, a bio-derived, highly flexible transparent film was synthesized from epoxidised linseed oil (ELO) in combination with a bio derived diacid cross linker (Pripol 1009) in the presence of amine catalysts (triethylamine (TEA), 1-methylimidazole (1-MeIm), 2-methyl-dimethylaminopyridine (2-MEIm), 1,8-diazabicyclo [5.4.0] undec-7
Journal ArticleDOI
Facile preparation of a phosphinated bisphenol and its low water-absorption epoxy resins for halogen-free copper clad laminates
TL;DR: In this article, a series of advanced epoxy resins with low water absorption for halogen-free copper clad laminates (CCL) were developed based on the advancement reaction of (1) and diglycidyl ether of bisphenol A (DGEBA), and the properties of the resulting thermosets such as glass transition temperature, coefficient of thermal expansion, thermal decomposition temperature, water absorption, and flame retardancy were evaluated.
Journal ArticleDOI
Improving adhesion of powder coating on PEEK composite: Influence of atmospheric plasma parameters
Aurélie Dupuis,Thu Huong Ho,Ahmad Fahs,Aurore Lafabrier,Guy Louarn,Jalal Bacharouche,Aissam Airoudj,Emmanuel Aragon,Jean-François Chailan +8 more
TL;DR: In this paper, the atmospheric plasma treatment has been chosen and the influence of plasma parameters has been studied to increase the surface adhesion with increasing wettability, polarity and nanoroughness.
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Efficient accelerating effect of carbonyldiimidazole on epoxy‐dicyandiamide curing system
TL;DR: In this paper, the accelerating mechanism of CDI involves acylation of DICY with CDI to give the corresponding adduct with enhanced solubility, and the consequent release of imidazole that can react with epoxide.
References
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Journal ArticleDOI
Direct Titration of Epoxy Compounds and Aziridines.
TL;DR: In this article, a stable, readily available, titrant which can be used for the direct titration of oxiranes and certain aziridines is presented, where the sample is dissolved in chloroform and titrated to a crystal violet end point with standard perchloric acid in the presence of an excess of a soluble quaternary ammonium bromide or iodide.
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Mechanism of the tertiary amine-catalyzed dicyandiamide cure of epoxy resins
TL;DR: In this paper, the early exothermic curing reaction is shown to be ring opening of the resin epoxy groups by dicyandiamide imino and amino anionic species, giving rise to N-alkyl cyanoguanidines; a minor amount of polyether formation also occurs at this time.
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Dicyandiamide analysis and solubility in epoxy resins
Gary L. Hagnauer,David A. Dunn +1 more
TL;DR: In this paper, a simple procedure is described for the rapid, quantitative analysis of dicyandiamide in epoxy resins and epoxy resin prepregs, and the formation of soluble amine-epoxy reaction products and Epoxy resin additives such as Monuron are found to enhance the solubility of Diamide.
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Reaktionsverlaut während der härtung eines epoxidharzes mit dizyandiamid
TL;DR: In this paper, the Reaktionsverlauf eines handelsublichen dizyandiamidhartenden Epoxidharzes mittels Ultrarotspektroskopie verfolgt and with den Ergebnissen fruherer anderer Methoden am gleichen system verglichen.
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Acceleration mechanisms in curing reactions involving model systems
TL;DR: Etude avec le glycidyl phenyl ether comme compose modele; oligomerisation du cycle oxiranne en presence d'amine tertiaire as mentioned in this paper.