2010
DOI: 10.1590/s0104-14282010005000021
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Influência da Estrutura química do co-monômero nas propriedades mecânicas e adesivas de redes epoxídicas

Abstract: Resumo: As propriedades mecânicas e adesivas de formulações à base do prepolímero do éter diglicidílico do bisfenol A curadas com várias aminas alifáticas foram avaliadas no estado vítreo. Ensaios de impacto do tipo Izod e compressão uniaxial foram usados para determinar a energia de impacto, o módulo de elasticidade e a tensão de escoamento. Ensaios de adesão usando substrato de aço para uniões de simples sobreposição, descascamento em T, e de impacto foram realizados. O melhor comportamento mecânico e adesiv… Show more

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Cited by 2 publications
(1 citation statement)
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“…To avoid the influence of undefined adhesion phenomena contribution, the failure of bonded joints are handled as cohesive, it means, the adhesive strength is always higher that the adhesion strength [3] . Even handling the adhesion strength apart from joint strength measurements, taken the failure as cohesive, there are some other parameters, which strongly influence the joint behavior: loading type (shear, tensile or combined loadings) [8] , adhesive thickness [9] and polymer (adhesive) structure [10,11] . Different type of experiments are usually applied to characterize the mechanical behavior of adhesively bonded joints [12,13] , such as peeling and lap shear experiments [10] and Arcan tests, which are able to combine shear and tensile stress loading under different angles [14] .…”
Section: Introductionmentioning
confidence: 99%
“…To avoid the influence of undefined adhesion phenomena contribution, the failure of bonded joints are handled as cohesive, it means, the adhesive strength is always higher that the adhesion strength [3] . Even handling the adhesion strength apart from joint strength measurements, taken the failure as cohesive, there are some other parameters, which strongly influence the joint behavior: loading type (shear, tensile or combined loadings) [8] , adhesive thickness [9] and polymer (adhesive) structure [10,11] . Different type of experiments are usually applied to characterize the mechanical behavior of adhesively bonded joints [12,13] , such as peeling and lap shear experiments [10] and Arcan tests, which are able to combine shear and tensile stress loading under different angles [14] .…”
Section: Introductionmentioning
confidence: 99%