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Journal Articles Macromolecular Materials and Engineering Year : 2008

Morphology and viscoelastic behaviour of a silica filled styrene/butadiene random copolymer

Abstract

An investigation into styrene-butadiene rubber and styrene-butadiene rubber/butadiene rubber composites was conducted, aimed at investigating the influence of surface modification of silica on polymer-filler interactions. Two silanes, bis-triethoxysilylpropyltetrasulfane and octadecyltriethoxysilane, were used as surface modifiers. A morphological investigation by transmission electron microscopy and automated image analysis provided a quantitative evaluation of the filler distribution in the rubber matrix by using morphometric descriptors, such as projected area, perimeter and area/perimeter ratio. The better dispersion of the surface-modified silica nicely relates with the improved dynamic-mechanical and tensile properties and accounts for the higher critical concentration necessary to the formation of the secondary network, thus confirming that the surface modification reduces filler-filler and enhances polymer-filler interactions.

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Polymers
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Dates and versions

hal-00373748 , version 1 (07-04-2009)

Identifiers

  • HAL Id : hal-00373748 , version 1

Cite

Lucia Conzatti, Giovanna Costa, Maila Castellano, Antonio Turturro, Fabio Michele Negroni, et al.. Morphology and viscoelastic behaviour of a silica filled styrene/butadiene random copolymer. Macromolecular Materials and Engineering, 2008, 293 (3), pp.178-187. ⟨hal-00373748⟩
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