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Dépôt Institutionnel de l'Université Ferhat ABBAS - Sétif 1 >
Revues Scientifiques >
Verres, Céramiques & Composites >
Volume 2, numéro 01 >
Grafting of kaolin with trifunctional silanes >
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http://dspace.univ-setif.dz:8888/jspui/handle/123456789/318
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| Titre: | Grafting of kaolin with trifunctional silanes |
| Auteur(s): | Issaoui, Mansour
Bouaziz, Jamel
Fourati, Mohieddine |
| Mots-clés: | C CP/MAS NMR
grafting
Si CP/MAS NMR
kaolin |
| Date de publication: | 2012 |
| Collection/Numéro: | Volume 2;N°1 |
| Résumé: | Silane-grafted-kaolin was synthesized by using octadecyltrichlorosilane, octyltrichlorosilane and
phenyltrichlorosilane. These different silanes used have a prominent effect on the mechanism of the
condensation reactions with the clay. The NMR spectroscopy indicated that there are various bonding
possibilities of the trichlorosilanes molecules with the kaolin surface. The increase in the relative
intensity of Q
3
and the appearance of Q
2
, T
3
, T
2
and T
1
signals clearly indicates the grafting of silane
molecules to kaolin surface silanol groups. The samesuccessful graft of silanes was demonstrated by
the appearance of characteristic absorption bands in the range of 2800-3000 cm
-1
in the FTIR spectra,
assigned to the C-H stretching and bending vibration. |
| URI/URL: | http://dspace.univ-setif.dz:8888/jspui/handle/123456789/318 |
| Collection(s) : | Grafting of kaolin with trifunctional silanes
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