Hydrolytic damage study of the silane coupling region in coated silica microfibres: pH and coating type effects

Olmos Díaz, Dania; González Benito, Francisco Javier; Aznar Jiménez, Antonio; Baselga Llidó, Juan

Publication:
Hydrolytic damage study of the silane coupling region in coated silica microfibres: pH and coating type effects

dc.affiliation.dpto	UC3M. Departamento de Ciencia e Ingeniería de Materiales e Ingeniería Química	es
dc.affiliation.grupoinv	UC3M. Grupo de Investigación: Polímeros y Composites	es
dc.contributor.author	Olmos Díaz, Dania
dc.contributor.author	González Benito, Francisco Javier
dc.contributor.author	Aznar Jiménez, Antonio
dc.contributor.author	Baselga Llidó, Juan
dc.date.accessioned	2017-11-21T10:50:33Z
dc.date.available	2017-11-21T10:50:33Z
dc.date.issued	2003-12-20
dc.description	Publicación derivada de la comunicación presentada en: International Conference on Advanced Materials Processing Technologies [AMPT'01] y publicada en: Proceedings of the International Conference on Advanced Materials Processing Technologies [AMPT'01]: Universidad Carlos III de Madrid, Leganés, Spain, 18-21 September, 2001	es
dc.description.abstract	Aqueous solutions of three silanes to cover silica microfibres were used, being the 3-aminopropyltriethoxysilane (APTES) and the 3-aminopropylmethyldiethoxysilane (APDES) the reagents for preparing them at the proportion of (APTES/APDES): 1/0, 1/1 and 0/1. The 1-pyrene sulphonyl chloride (PSC) fluorescent moiety was chemically attached to the silanised substrate via the sulphonamide formation. The hydrolytic degradation phenomenon of the silane coupling layer was studied as a function of: (i) temperature, (ii) coating layer type and (iii) pH (4, 7 and 10). The hydrolytic damage in the coupling region of the silica microfibres composite materials occurs under an equilibrium process. It was obtained the activation energies (Ea) for the hydrolytic damage considering the rate to reach the equilibrium. The values of Ea depended on the type of coating and on the pH. As a consequence, the rate of hydrolytic damage could be related to the proportion of Sisilane–O–Sisilane, while the OH− groups were thought to catalyse the reaction.	es
dc.format.extent	5
dc.format.mimetype	application/pdf
dc.identifier.bibliographicCitation	Olmos, D., González-Benito, J., Aznar, A. J. & Baselga, J. (2003). Hydrolytic damage study of the silane coupling region in coated silica microfibres: pH and coating type effects. Journal of Materials Processing Technology, 143-144, pp. 82-86.	en
dc.identifier.doi	https://doi.org/10.1016/S0924-0136(03)00325-X
dc.identifier.issn	0924-0136
dc.identifier.publicationfirstpage	82
dc.identifier.publicationlastpage	86
dc.identifier.publicationtitle	Journal of Materials Processing Technology	en
dc.identifier.publicationvolume	143-144
dc.identifier.uri	https://hdl.handle.net/10016/25914
dc.identifier.uxxi	AR/0000020511
dc.language.iso	eng
dc.publisher	Elsevier	en
dc.relation.eventdate	18-21 de septiembre de 2001	es
dc.relation.eventplace	Leganés, Madrid	es
dc.relation.eventtitle	International Conference on Advanced Materials Processing Technologies [AMPT'01]	en
dc.rights	© Elsevier, 2003
dc.rights	Atribución-NoComercial-SinDerivadas 3.0 España
dc.rights.accessRights	open access
dc.rights.uri	http://creativecommons.org/licenses/by-nc-nd/3.0/es/
dc.subject.eciencia	Materiales	es
dc.subject.eciencia	Química	es
dc.subject.other	Silane coating	en
dc.subject.other	Silica	en
dc.subject.other	Hydrolytic damage	en
dc.title	Hydrolytic damage study of the silane coupling region in coated silica microfibres: pH and coating type effects	en
dc.type	conference paper	*
dc.type.hasVersion	AM	*
dspace.entity.type	Publication