Exfoliation of clays in PDMS rubber using an unexpected couple: a silicone surfactant and water

[en] Poly(dimethylsiloxane) (PDMS)/montmorillonite (MMT) composites have been prepared using a newly synthesized omega-ammonium functionalized poly(dimethylsiloxane) compatibilizer coupled with a dispersion technique in water. The organoclay containing the new siloxane surfactant was characterized by TGA and XRD. For the first time, a nanoscopic dispersion of MMT nanoplatelets in the PDMS composite cured by hydrosilylation and a good compatibility between clay layers and matrix were obtained. The beneficial effect of both the surfactant and the water onto clay nanoplatelet dispersion was evaluated by different microscopy techniques and by measuring different properties such as the viscosity of the uncured PDMS/MMT nanodispersions, and the swelling rate and Young's modulus of the cured PDMS/MMT nanocomposites.

Disciplines :

Chemistry

Author, co-author :

Labruyère, Céline

Monteverde, F.

Alexandre, M.

Dubois, Philippe ; Université de Mons > Faculté des Sciences > Matériaux Polymères et Composites

Language :

English

Title :

Exfoliation of clays in PDMS rubber using an unexpected couple: a silicone surfactant and water

Publication date :

01 April 2009

Journal title :

Journal of Nanoscience and Nanotechnology

ISSN :

1533-4880

Publisher :

American Scientific Publishers, Canada

Volume :

Issue :

Pages :

2731-2738

Peer reviewed :

Peer Reviewed verified by ORBi

Research unit :

S816 - Matériaux Polymères et Composites

Research institute :

R400 - Institut de Recherche en Science et Ingénierie des Matériaux

Available on ORBi UMONS :

since 10 July 2010

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