Journal ArticleDOI
The influence of in situ modification of silica on filler network and dynamic mechanical properties of silica‐filled solution styrene–butadiene rubber
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In this article, the influence of in situ modification of silica with bis-(3-(triethoxysilyl)-propyl)-tetrasulfide (TESPT) on filler network in silica filled solution SBR compound was investigated.Abstract:
The influence of in situ modification of silica with bis-(3-(triethoxysilyl)-propyl)-tetrasulfide (TESPT) on filler network in silica filled solution SBR compound was investigated. In situ modification greatly increased the bound rubber content. TEM observation of silica gel showed that bridging and interlocking of absorbed chains on the surface of silica particles formed the filler network. Rubber processing analyzer (RPA) was used to characterize the filler network and interaction between silica and rubber by strain and temperature sweeps. In situ modification improved the dispersion of silica, and in the meantime, the chemical bonds were formed between silica and rubber, which conferred the stability of silica dispersion during the processing. Compared to the compound without in situ modification, the compound with in situ modification of silica exhibited higher tan δ at low strains and lower tan δ at high strains, which can be explained in terms of filler network in the compounds. After in situ modification, DMTA results showed silica-filled SSBR vulcanizate exhibited higher tan δ in the temperature range of −30 to 10°C, and RPA results showed that it had lower tan δ at 60°C when the strain was more than 3%. © 2007 Wiley Periodicals, Inc. J Appl Polym Sci, 2008read more
Citations
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Journal ArticleDOI
Preparation, structure, and properties of solution-polymerized styrene-butadiene rubber with functionalized end-groups and its silica-filled composites
TL;DR: In this paper, a solution-polymerized styrene-butadiene rubber with alkoxysilane functionalization at two ends of macromolecular chains (A-SSBR) was synthesized by dilithium as initiator.
Journal ArticleDOI
The filler–rubber interface and reinforcement in styrene butadiene rubber composites with graphene/silica hybrids: A quantitative correlation with the constrained region
TL;DR: In this article, the dispersion status of SiO 2 @rGO and the filler-rubber interfacial interaction were investigated and the amount of constrained region was quantified.
Journal ArticleDOI
Interface Engineering toward Promoting Silanization by Ionic Liquid for High-Performance Rubber/Silica Composites
TL;DR: In this article, the authors utilized a phosphonium ionic liquid (PIL) as a novel catalyst for the silanization reaction between silica and bis(3-triethoxysilylpropyl)-tetrasulfide (TESPT), a commonly used silane in the tire industry, in the styrene-butadiene rubber (SBR) matrix.
Journal ArticleDOI
Preparation of nano-zinc oxide/EPDM composites with both good thermal conductivity and mechanical properties
TL;DR: In this article, nano-zinc oxide (ZnO) filled EPDM composites are prepared, and the mechanical properties and thermal conductivity are investigated respectively, which are further compared with the tradi- tional reinforcing fillers, such as carbon black and nano- silica.
Journal ArticleDOI
Novel functional silica nanoparticles for rubber vulcanization and reinforcement
TL;DR: In this article, a high reactive sulfocompound, sulfur monochloride, was chemically supported onto the surface of silica by the reaction between chloric atom and silanol hydroxyl to obtain a novel vulcanizing agent, silica-s-S2Cl2.
References
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Journal ArticleDOI
The Dynamic Properties of Carbon Black-Loaded Natural Rubber Vulcanizates. Part I
TL;DR: In this article, the dynamic shear modulus at very high strains, (G∞), of carbon black filler loaded vulcanizates is regarded as due to the product of hydrodynamic interaction due to filler particles, and a second factor for which evidence is given suggesting that it arises from a few strong linkages which are known to link filler particles to the matrix.
Journal ArticleDOI
Effect of Polymer-Filler and Filler-Filler Interactions on Dynamic Properties of Filled Vulcanizates
TL;DR: In the past few years, an enormous amount of work has been reported on the progress in the application of conventional fillers and the development of new products to improve the reinforcement of rubber, dynamic properties in particular as mentioned in this paper.
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The effect of filler–filler and filler–elastomer interaction on rubber reinforcement
TL;DR: The role of active fillers like carbon black and silica has been studied in the rubber matrix for a better understanding of the rubber performance and the mechanism of reinforcement as mentioned in this paper, in particular the influence of basic properties of carbon blacks, such as specific surface area, structure and surface activity on the Payne-effect, was investigated with the Rubber-Process-Analyzer (RPA) which allows a testing of the strength of the filler network and the filler-polymer interaction in the green compound as well as in the vulcanizate in a wide range of shear amplitudes.
Journal ArticleDOI
Mechanistic aspects of the role of coupling agents in silica–rubber composites
TL;DR: In this paper, the authors investigated the role of the chemical composition of the coupling agent in the formation of a proper bond between the silica and the coupling agents, while avoiding a premature reaction with the rubber polymers leading to premature scorch during mixing.
Journal ArticleDOI
The glass transition and interfacial layer in styrene-butadiene rubber containing silica nanofiller
TL;DR: In this article, the authors examined the mechanical behavior of a styrene-butadiene rubber, containing 23.5% styrene and filled with up to 55% by weight with silica nanoparticles, and showed that the tan δ spectra of these composites show a second relaxation of relatively low intensity located about 40 °C above the main α relaxation.