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Effects of Nano-Structure of Silica on Dynamic Properties of Styrene-Butadiene Rubber
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Effects of Nano-Structure of Silica on Dynamic Properties of Styrene-Butadiene Rubber

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Abstract:

Properties of four materials based on styrene-butadiene rubber (SBR), one without filler and the other three with the same amount but different types of silica fillers, are investigated. The fillers used are Vulkasil S and two new fillers, differing in nano-structures: specific surface area and particle aggregate morphology. All other components in the material formulations are the same as well as the procedures of material preparation. Thermal and thermo-mechanical properties of all four materials are investigated by modulated differential scanning calorimetry (MDSC) and dynamic mechanical analysis (DMA). Morphology of the materials is studied using scanning electron microscopy (SEM). The results for glass transition temperature (Tg ) of gum rubber and three filled rubbers, obtained by MDSC are for all four materials Tg = -50±1 0C, and by DMA loss tangent measurements also for all of them Tg = -29±1 0C. It indicates no significant influence of active silica fillers on the rubber network segment dynamics, in the temperature range close to Tg of SBR. But, at higher temperatures MDSC gives insights into dynamic transitions that are under the influence of filler interactions and sensitive to filler structure. The difference in Tg results obtained for the same material by MDSC and DMA can be understood in terms of different sensitivity of network segment dynamics to conditions provided by those two measuring methods.

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Periodical:

Materials Science Forum (Volume 555)

Pages:

473-478

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.555.473

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Online since:

September 2007

Authors:

N.L. Lazić, J. Budinski-Simendić, S. Ostojić, M. Kićanović, M.B. Plavšić

Keywords:

Elastomer Composites, Modulated DSC, Nano-Structured Fillers, Silica Fillers

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© 2007 Trans Tech Publications Ltd. All Rights Reserved

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References

[1] M.B. Plavsic: Polymer Materials Science and Engineering (Naucna Knjiga, Serbia 1996).

Google Scholar

[2] E.A. Turi, Ed: Thermal Characterization of Polymer Materials (Academic Press, New York 1981).

Google Scholar

[3] A.R. Kraus and J.T. Gruvas: J. Polym. Sci., Polym. Phys. Ed. Vol. 8 (1970), p.571.

Google Scholar

[4] A.R. Payne: Dynamic Properties of Filler Loaded Rubbers Ch. 3 in Reinforcement of Elastomers, G. Kraus Ed. (Wiley, New York 1965).

Google Scholar

[5] C.W. Wal, H.W. Bree and F.R. Schwarzl: J. Appl. Polym. Sci. Vol. 9 (1965), p.2143.

Google Scholar

[6] V. Luksameevanish and M. Seadan: Sanklansrin J. Sci. Technol. Vol. 26 (2004), p.637.

Google Scholar

[7] A. Botti, W. Pyckhout-Hintzelen and D. Richter: J. Chem. Phys. Vol. 124 (2006), p.960.

Google Scholar

[8] V.A. Bernstein and V.M. Egorov: Differential Scanning Calorimetry in Physical Chemistry of Polymers (Chemistry, Russia 1990).

Google Scholar

[9] M. Reading, B.K. Hahn and B.S. Crowe: US Patent 5 346 306 (1994).

Google Scholar

[10] N. Lazic : in preparation.

Google Scholar

[11] J.D. Ferry: Viscoelastic Properties of Polymers (Wilwy, New York 1080).

Google Scholar

[12] W.J. Macknight, F.E. Karasz and J.R. Freed: Phase and Relaxation Transitions in Polymer Blends, Ch. 5 in Polymer Blends, D.R. Paul and S. Newman Eds. (Academic Press, New York 1978).

Google Scholar

[13] C.M. Blow: Rubber Tecnology and Manufacture (Butterwords. UK 1982).

Google Scholar

[14] B. Bird, O. Hassager, R.C. Armstrong and C.F. Curtiss: Dynamics of Polymer Liquids (Wiley, New York 1977).

Google Scholar

[15] J. Brendrup and E.H. Immergut Eds.: Polymer Handbook (Wiley, New York 1975).

Google Scholar