2019
DOI: 10.1155/2019/5670439
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Frost-Resistant Epoxy-Urethane Binders Containing Diglycidyl Urethane

Abstract: A novel method for developing frost-resistant epoxy-urethane binders is proposed that is based on mixtures of epoxy-urethane oligomers and diglycidyl urethane formed during synthesis. The microheterogeneous elastic materials obtained by curing these mixtures by the cycloaliphatic amines have a low glass transition temperature and high mechanical properties.

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Cited by 7 publications
(4 citation statements)
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“…40 A further study evaluated materials cured with aminoethyl piperazine (AEP) as well as IPDA. 41,42 Two glass transitions were observed using DSC, indicating that the materials were phase separated. Properties such as adhesion strength and hardness increased as the amount of DGU in the system increased; however, the glass transition temperature of the elastic phase was not affected by DGU content.…”
Section: Adhesives and Elastomersmentioning
confidence: 99%
“…40 A further study evaluated materials cured with aminoethyl piperazine (AEP) as well as IPDA. 41,42 Two glass transitions were observed using DSC, indicating that the materials were phase separated. Properties such as adhesion strength and hardness increased as the amount of DGU in the system increased; however, the glass transition temperature of the elastic phase was not affected by DGU content.…”
Section: Adhesives and Elastomersmentioning
confidence: 99%
“…Because of this, the GC resins are different from PUs in terms of their reaction chemistry, properties, and applications. GC resins find applications in the areas of medical devices and marine coatings, , frost-resistant binders, impact modifiers for polyoxymethylene, flame-resistant foams for electronics, and space industry . Apart from that, an essential advantage of GC resins is the presence of self-cross-linking reactions of epoxide groups toward the active hydrogens of the carbamate, and the secondary hydroxyl group derived from the ring-opening reaction of epoxide group. , The ring-opening reaction of an epoxide group would generate a secondary hydroxyl group, which reacts with other epoxide groups to produce a cross-linked network, thereby resulting in a high cross-linking density in the epoxy resin .…”
Section: Introductionmentioning
confidence: 99%
“…Известно, что более высокие прочностные свой ства отвержденных материалов на основе эпоксиуре тановых олигомеров можно получить при использо вании в качестве базовых олигомердиолов введением некоторого количества эпоксидиановых смол или применением при синтезе эпоксиуретановых оли гомеров условий, обусловливающих образование повышенных количеств диглицидилуретана [11]. В этом случае в полимерной системе реализуется, как правило, фазовое разделение с выделением от дельной жесткой фазы, состоящей в основном из бо лее полярных фрагментов полимерных цепей.…”
unclassified
“…Такое фазовое разделение позволяет не только повышать прочностные свойства, но и при определенных усло виях сохранять температуру стеклования эластичной матрицы, что важно для достижения высокой моро зостойкости. Однако модификация эпоксиуретановых олигомеров указанными выше методами часто при водит к существенному ухудшению деформационных характеристик [11].…”
unclassified