RT Journal Article
T1 Hybrid Rubberised Bitumen from Reactive and Non-Reactive Ethylene Copolymers
A1 Senise, Simona
A1 Carrera Páez, Virginia
A1 Cuadri Vega, Antonio Abad
A1 Navarro Domínguez, Francisco Javier
A1 Partal López, Pedro
AB Hybrid modification is a relatively new concept of incorporating two or more polymericmodifiers of different nature to a bitumen, in order to take advantage of their complementary features.Aiming to this, in this paper, the so-called Hybrid Systems (HSs) were prepared by the addition ofan ethylene-based copolymer (reactive or non-reactive) to a model rubberised binder (Crumb TyreRubber Modified Bitumen). The resulting binders (referred to as reactive and non-reactivate HSs,depending on copolymer used) were evaluated by means of thermorheological analysis, technologicalcharacterisation, fluorescence microscopy and modulated differential scanning calorimetry. From theexperimental results, it may be deduced a positive synergistic effect of non-dissolved CrumbTyre Rubber (CTR) particles and a second polymeric phase that not only improves the in-serviceperformance but also the high-temperature storage stability. This enhancement is attributed to thedevelopment of a multiphasic system composed of non-dissolved CTR particles, a polymer-rich phaseand an asphaltene-rich phase. In the case of non-reactive HSs, droplets of swollen ethylene copolymerform a well-defined dispersed phase. By contrast, reactive HSs display a different morphology, almostinvisible by optical microscopy, related to the development of a chemical network that yields, by far,the highest degree of modification.
PB MDPI
SN 2073-4360
YR 2019
FD 2019-11
LK http://hdl.handle.net/10272/18270
UL http://hdl.handle.net/10272/18270
LA eng
NO Senise, S., Carrera Páez, V., Cuadri Vega, A. A., Navarro Domínguez, F. J., & Partal López, P. (2019). Hybrid Rubberised Bitumen from Reactive and Non-Reactive Ethylene Copolymers. Polymers, 11(12), 1974. DOI: https://doi.org/10.3390/polym11121974
DS Repositorio Institucional de la Universidad de Huelva
RD 31 may 2026