The effect of coated rutile titanium dioxide (TiO2) and a disazopyrazolone dye (azo dye) on the mechanism and the kinetic of photo-oxidation of unvulcanized styrene butadiene rubber (SBR) composites under accelerated UV-visible irradiation (λ > 290 nm at 35 °C) has been investigated using several techniques such as infrared spectroscopy, UV-visible spectrophotometry, and gel fraction measurements. Different photo-products resulting from the photo-ageing such as alcohol, ketone, or acids as well as cross-linked network were identified. The incorporation of TiO2 rutile and an azo dye into the matrix did not modify the mechanism of photo-oxidation. However, they have a significant effect on the kinetic of photoproducts accumulation. Both fillers protect the matrix from photo-oxidation. TiO2 rutile, thanks to its inorganic coating at the surface, dissipates part of the UV-visible radiation received by the polymer. The activity mechanism of azo dye consisting of a combination of its function as an antioxidant and light absorber, presents a better stabilizing effect compared with TiO2 rutile.
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e-mail: fatima.hassouna@tudor.lu
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January 2012
Bridging Microstructure, Properties, And Processing Of Polymer-Based Advanced Materials
Effect of Coated Rutile TiO2 and Disazopyrazolone Dye Additives on Unvulcanized Styrene Butadiene Rubber During Photo-Ageing
Grégory Mertz,
Grégory Mertz
Department of Advanced Materials and Structures, CRP Henri Tudor, 66 rue de Luxembourg, L-4002 Esch-sur-Alzette, Luxembourg; Institut Jean Lamour - UMR CNRS 7198, Ecole des Mines de Nancy, Parc de Saurupt, F-54042 Nancy cedex,
France
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Fatima Hassouna,
Fatima Hassouna
Department of Advanced Materials and Structures, CRP Henri Tudor, 66 rue de Luxembourg, L-4002 Esch-sur-Alzette, Luxembourg
e-mail: fatima.hassouna@tudor.lu
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Valérie Toniazzo,
Valérie Toniazzo
Department of Advanced Materials and Structures, CRP Henri Tudor, 66 rue de Luxembourg, L-4002 Esch-sur-Alzette, Luxembourg
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Abdesselam Dahoun,
Abdesselam Dahoun
Institut Jean Lamour - UMR CNRS 7198, Ecole des Mines de Nancy, Parc de Saurupt, F-54042 Nancy cedex,
France
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David Ruch
David Ruch
Department of Advanced Materials and Structures, CRP Henri Tudor, 66 rue de Luxembourg, L-4002 Esch-sur-Alzette, Luxembourg
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Grégory Mertz
Department of Advanced Materials and Structures, CRP Henri Tudor, 66 rue de Luxembourg, L-4002 Esch-sur-Alzette, Luxembourg; Institut Jean Lamour - UMR CNRS 7198, Ecole des Mines de Nancy, Parc de Saurupt, F-54042 Nancy cedex,
France
Fatima Hassouna
Department of Advanced Materials and Structures, CRP Henri Tudor, 66 rue de Luxembourg, L-4002 Esch-sur-Alzette, Luxembourg
e-mail: fatima.hassouna@tudor.lu
Valérie Toniazzo
Department of Advanced Materials and Structures, CRP Henri Tudor, 66 rue de Luxembourg, L-4002 Esch-sur-Alzette, Luxembourg
Abdesselam Dahoun
Institut Jean Lamour - UMR CNRS 7198, Ecole des Mines de Nancy, Parc de Saurupt, F-54042 Nancy cedex,
France
David Ruch
Department of Advanced Materials and Structures, CRP Henri Tudor, 66 rue de Luxembourg, L-4002 Esch-sur-Alzette, Luxembourg
J. Eng. Mater. Technol. Jan 2012, 134(1): 010903 (7 pages)
Published Online: December 12, 2011
Article history
Received:
May 27, 2011
Revised:
July 28, 2011
Accepted:
October 25, 2011
Online:
December 12, 2011
Published:
December 12, 2011
Citation
Mertz, G., Hassouna, F., Toniazzo, V., Dahoun, A., and Ruch, D. (December 12, 2011). "Effect of Coated Rutile TiO2 and Disazopyrazolone Dye Additives on Unvulcanized Styrene Butadiene Rubber During Photo-Ageing." ASME. J. Eng. Mater. Technol. January 2012; 134(1): 010903. https://doi.org/10.1115/1.4005418
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