Buscar
Mostrando ítems 1-10 de 35
Analysis of the damage zone around the crack tip for two rubber-modified epoxy matrices exhibiting different toughenability
(Elsevier, 2003-02)
One inevitable effect of adding soft rubber particles to a rigid polymer is that its yield stress, σY, is lowered by the stress concentration effect produced by dispersed particles. This effect may be enhanced if a fraction ...
Epoxy-urethane copolymers: Relation between morphology and properties
(Wiley, 2001-09-20)
The modification of an amine-cured epoxy resin by the addition of polyurethanes (PU) was investigated, and their mechanical and impact properties were related to their microstructure and morphology. For the study, two ...
Recycling of waste tire rubber: microwave devulcanization and incorporation in a thermoset resin
(Elsevier, 2016-11)
This study focused on the possibility of recycling Waste Tire Rubber (WTR) to be used as polymer modifier. Thus, WTR was grinded into powder, at ambient temperature, with a disc mill PQ500 and microwave electromagnetic ...
Chemorheology and ultimate behavior of epoxy-amine mixtures modified with a liquid oligomer
(John Wiley & Sons Inc, 2000-05)
Rubber toughening of epoxy resins has been actively studied since the 1960s with clear progress in understanding of the ultimate properties: microstructure relationships. The morphology, obtained after curing of the modified ...
Monofunctional epoxy-POSS dispersed in epoxy - Amine networks: Effect of a prereaction on the morphology and crystallinity of POSS domains
(American Chemical Society, 2007-02)
Several studies have recently reported the use of monofunctional octahedral oligomeric silsesquioxanes (monofunctional POSS) to modify polymer networks. In most of these studies the final material is depicted as a network ...
Rubber modified vinyl ester resins of different molecular weights
(Springer, 2002-12)
The morphology, as well as the related fracture and mechanical behavior of vinyl ester resins (DVER) of different molecular weights cured with styrene (S) and modified with two different liquid rubbers are presented and ...
Liquid rubber modified vinyl ester resins: Fracture and mechanical behavior
(Elsevier, 2001-01-12)
The fracture and mechanical behavior of vinyl ester resins (DVER) cured with styrene (S) and modified with two different liquid rubbers has been determined and related to the microstructure of the resulting modified ...
Morphology of rubber-modified vinyl ester resins cured at different temperatures
(John Wiley & Sons Inc, 2003-07-05)
The morphologies of styrene (St) crosslinked divinylester resins (OVER) modified with elastomers were analyzed. The primary focus of this study was on the effect of the molecular weight of the resins, the reactivity of the ...