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Baldi, A. (author), Grande, A.M. (author), Bose, R.K. (author), Airoldi, A. (author), Garcia Espallargas, S.J. (author), Di Liandro, L. (author), Van der Zwaag, S. (author)
Several polymeric systems with intrinsic Self-Healing (SH) capabilities have been reported in literature. Many of them showed healing upon contact across the crack interface. Different parameters such as contact time, temperature, pressure or chemical activity determine the degree of healing obtained. In this work, a numerical simulation of the...
conference paper 2013
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Kötteritzsch, J. (author), Hager, M.D. (author), Schubert, U.S. (author), Bose, R.K. (author), Garcia Espallargas, S.J. (author), Van der Zwaag, S. (author)
Because of its thermal reversibility, the retro-Diels-Alder (RDA) reaction represents an appealing possibility to produce self-healing polymers with well-defined architectures and tunable properties [1]. However, the polymer architecture for which the Diels-Alder (DA) reaction can best be used to contribute to the healing process is still not...
conference paper 2013
document
Mathis, C. (author), Garcia Espallargas, S.J. (author)
Encapsulation of reactive agents embedded within a matrix is the most studied concept to develop self-healing materials. The most common approaches employ either a single component with catalyst dispersed in the matrix or a single environment-reactive component for corrosion protection [1]. Recently an approach for corrosion protection based on...
conference paper 2013
document
AbdolahZadeh, M. (author), Esteves, A.C.C. (author), Van der Zwaag, S. (author), Garcia Espallargas, S.J. (author)
Sol-gel technology is increasingly being used in coatings for corrosion protection and adhesion improvement. So far, the self-healing concept in sol-gel coatings has only been approached from extrinsic healing perspective (i.e. use of nano and micro carriers of corrosion inhibitors) [1]. Despite the benefits of this approach, the damaged area...
conference paper 2013
document
Bose, R.K. (author), Garcia Espallargas, S.J. (author), Van der Zwaag, S. (author)
Supramolecular rubbers based on 2-aminoethylimidazolidone and fatty acids with epoxy crosslinks have been shown to self-heal via multiple hydrogen bonding sites. In this work, several tools are used to investigate the molecular mechanisms taking place at the interface to understand cohesive healing in these polymers. The quantification of self...
conference paper 2013
document
Prajer, M. (author), Wu, X. (author), Garcia Espallargas, S.J. (author), Van der Zwaag, S. (author)
Polymers reinforced with high performance fibres are successfully replacing metal alloys in lightweight aircraft structures. A critical factor in structural design is the resistance of a structure to progressive damage which develops during its service time. The brittle nature of matrix cracking is the main source of composite failure initiating...
conference paper 2013
document
Vega, J.M. (author), Van der Zwaag, S. (author), Garcia Espallargas, S.J. (author)
Poly(ethylene-co-methacrylic acid) (EMAA) ionomers have shown healing capabilities in both ballistic and static tests. In previous studies it was shown that the degree of crosslinking (clusters) affects (positively or negatively) the healing under impact tests. Moreover, it has also been reported that the modification of the ionomers by...
conference paper 2013
document
Javierre, E. (author), Camanes, V. (author), Garcia Espallargas, S.J. (author), Van der Zwaag, S. (author), Garcia-Aznar, J.M. (author)
A long-lasting barrier protection at damaged sites of coated system can be achieved by means of an active response of the primer. This may be attained through the release of reactive liquids from dispersed containers, the increase of the local mobility of the polymeric network, or the expansion of (dispersed elements in) the primer [1]. Such...
conference paper 2013
document
Garcia Espallargas, S.J. (author), Wu, X. (author)
Recently, encapsulated silyl esters have been shown to act as efficient healing agents for self-healing anticorrosive coatings. While the positive protective effects were irrefutable, the actual protection mechanism has not been clarified yet. In this study, x-ray computed ?-tomography and electrochemical impedance spectroscopy have been...
conference paper 2013
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