The study presents a novel method for the protection of Grubbs' catalyst, by incorporation in polystyrene fibres via electrospinning technique. Epoxy-glass fibre composite with embedded self-healing agents (polystyrene fibres with Grubbs' and microcapsules with dicyclopentadiene) was processed. Fibres retained pale purple colour during processing, revealing that fibres provided good protection of the catalyst from the amine hardener. The influence of self-healing agents' content and thermal treatment on self-healing efficiency was investigated. Fourier transform infrared spectroscopy revealed that a polydicyclopentadiene formed at the healed interface. Thermal analysis revealed that bleed' at the healing sites from different samples had similar concentration of polydicyclopentadiene, indicating that the same amount of the catalyst has been provided to dicyclopentadiene for polymerization. This finding lead to assumption that electrospun polymer fibres enabled good dispersion of the cat...alyst in the composites. The low energy impact tests of the samples showed a recovery of 90% after 24h at room temperature and up to 111% after repeated heating cycles.
TY - JOUR
AU - Radović, Ivana M.
AU - Stojanović, Dušica
AU - Kojović, Aleksandar
AU - Petrović, Miloš
AU - Uskoković, Petar
AU - Radojević, Vesna
AU - Aleksić, Radoslav
PY - 2017
UR - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/3592
AB - The study presents a novel method for the protection of Grubbs' catalyst, by incorporation in polystyrene fibres via electrospinning technique. Epoxy-glass fibre composite with embedded self-healing agents (polystyrene fibres with Grubbs' and microcapsules with dicyclopentadiene) was processed. Fibres retained pale purple colour during processing, revealing that fibres provided good protection of the catalyst from the amine hardener. The influence of self-healing agents' content and thermal treatment on self-healing efficiency was investigated. Fourier transform infrared spectroscopy revealed that a polydicyclopentadiene formed at the healed interface. Thermal analysis revealed that bleed' at the healing sites from different samples had similar concentration of polydicyclopentadiene, indicating that the same amount of the catalyst has been provided to dicyclopentadiene for polymerization. This finding lead to assumption that electrospun polymer fibres enabled good dispersion of the catalyst in the composites. The low energy impact tests of the samples showed a recovery of 90% after 24h at room temperature and up to 111% after repeated heating cycles.
PB - Sage Publications Ltd, London
T2 - Journal of Composite Materials
T1 - Healing efficiency of polystyrene electrospun nanofibers with Grubbs' catalyst in thermosetting composite
EP - 3016
IS - 21
SP - 3003
VL - 51
DO - 10.1177/0021998316681832
ER -
@article{
author = "Radović, Ivana M. and Stojanović, Dušica and Kojović, Aleksandar and Petrović, Miloš and Uskoković, Petar and Radojević, Vesna and Aleksić, Radoslav",
year = "2017",
abstract = "The study presents a novel method for the protection of Grubbs' catalyst, by incorporation in polystyrene fibres via electrospinning technique. Epoxy-glass fibre composite with embedded self-healing agents (polystyrene fibres with Grubbs' and microcapsules with dicyclopentadiene) was processed. Fibres retained pale purple colour during processing, revealing that fibres provided good protection of the catalyst from the amine hardener. The influence of self-healing agents' content and thermal treatment on self-healing efficiency was investigated. Fourier transform infrared spectroscopy revealed that a polydicyclopentadiene formed at the healed interface. Thermal analysis revealed that bleed' at the healing sites from different samples had similar concentration of polydicyclopentadiene, indicating that the same amount of the catalyst has been provided to dicyclopentadiene for polymerization. This finding lead to assumption that electrospun polymer fibres enabled good dispersion of the catalyst in the composites. The low energy impact tests of the samples showed a recovery of 90% after 24h at room temperature and up to 111% after repeated heating cycles.",
publisher = "Sage Publications Ltd, London",
journal = "Journal of Composite Materials",
title = "Healing efficiency of polystyrene electrospun nanofibers with Grubbs' catalyst in thermosetting composite",
pages = "3016-3003",
number = "21",
volume = "51",
doi = "10.1177/0021998316681832"
}
Radović, I. M., Stojanović, D., Kojović, A., Petrović, M., Uskoković, P., Radojević, V.,& Aleksić, R.. (2017). Healing efficiency of polystyrene electrospun nanofibers with Grubbs' catalyst in thermosetting composite. in Journal of Composite Materials
Sage Publications Ltd, London., 51(21), 3003-3016.
https://doi.org/10.1177/0021998316681832
Radović IM, Stojanović D, Kojović A, Petrović M, Uskoković P, Radojević V, Aleksić R. Healing efficiency of polystyrene electrospun nanofibers with Grubbs' catalyst in thermosetting composite. in Journal of Composite Materials. 2017;51(21):3003-3016.
doi:10.1177/0021998316681832 .
Radović, Ivana M., Stojanović, Dušica, Kojović, Aleksandar, Petrović, Miloš, Uskoković, Petar, Radojević, Vesna, Aleksić, Radoslav, "Healing efficiency of polystyrene electrospun nanofibers with Grubbs' catalyst in thermosetting composite" in Journal of Composite Materials, 51, no. 21 (2017):3003-3016,
https://doi.org/10.1177/0021998316681832 . .
