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Styrene-butadiene

About: Styrene-butadiene is a research topic. Over the lifetime, 5568 publications have been published within this topic receiving 62099 citations. The topic is also known as: styrene-butadiene rubber & SBR.


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Journal ArticleDOI
TL;DR: In this article, the effects of high vinyl solution styrene-butadiene rubber (SSBR) containing different macrostructures and chain-end functional groups were investigated with respect to the dispersion of silica in the compounds.
Abstract: In this study, the effects of high vinyl solution styrene-butadiene rubber (SSBR) containing different macrostructures and chain-end functional groups were investigated with respect to the dispersion of silica in the compounds. The microstructures and functional groups of three polymers were analyzed by using 1H nuclear magnetic resonance (NMR). According to the 1H NMR analysis, the star-shaped SSBR-E has a relatively higher numbers of ethoxy group in the polymer chain. All compounds showed good silica dispersion based on transmission electron microscopy (TEM) observation. According to analysis of the Payne effect, longer mixing times showed better dispersion of silica in the rubber compounds, and functional group differences in the SSBR also had an effect on the degree of silica dispersion that led to a decrease in storage modulus. In particular, the compound with star-shaped polymer containing ethoxy silyl groups showed the lowest storage modulus due to a higher number of functional groups compared to the other polymers. The abrasion resistance was closely related to the silica dispersion as well as the filler-rubber interaction. The abrasion loss decreased slightly when the mixing time was extended; however, this significantly decreased when the number of functional groups in the polymer chain was increased. Accordingly, the star-shaped polymer containing higher numbers of the functional group contributed to a better dispersion of silica in the compound. Mixing time was also considered as an important parameter to improve dispersion of silica and for reduction of silica flocculation in the rubber compounds.

25 citations

Journal ArticleDOI
TL;DR: In this article, carbon-black filled styrene-butadiene rubbers are subjected to monotonic uniaxial tension tests in order to investi-gate the effects of the amount of fillers and of the crosslink density on their mechanical properties.
Abstract: Several carbon-black filled styrene-butadiene rubbers are subjected to monotonic uniaxial tension tests in order to investi-gate the effects of the amount of fillers and of the crosslink density on their mechanical properties. The Young modulus, the volume changes associated with material damage and the stretch to failure are extracted and discussed. Results compare well to the literature results when exist and quantitative analysis are proposed when possible. Results show that filled rubbers are not incompressible when submitted to uniaxial tension tests and their volume changes are strongly dependent of the amount of fillers but are unaffected by the crosslink density. The latter shows strong impact on the filled rubbers stretch to failure but more interestingly this impact is com-parable to what is encountered in unfilled rubbers. The stretch to failure is improved by the addition of fillers with an optimum for material filled around 30 phr.

25 citations

Journal ArticleDOI
TL;DR: In this paper, a carbon black-reduced graphene (CB-RG) hybrid filler was fabricated and blended with styrene-butadiene rubber (SBR) via simple two-roll mill mixing.
Abstract: Graphene has become an attractive reinforcing filler for rubber materials, but its dispersion in rubber is still a big challenge. In this work, a novel carbon black-reduced graphene (CB-RG) hybrid filler was fabricated and blended with styrene-butadiene rubber (SBR) via simple two-roll mill mixing. The prepared CB-RG hybrids had a microstructure with small CB agglomerates adsorbed onto graphene surfaces. CB acted as a barrier preventing the RG sheets from restacking even after drying. Homogeneous dispersion of graphene sheets in SBR matrix was observed by the mechanical mixing method based on the application of the CB-RG hybrid fillers. Dynamic mechanical analysis showed that Tg of the SBR/CB-RG blend was higher than that of the SBR/CB blend indicating strong interfacial interactions between RG and SBR due to the high surface area of graphene and the π-π interaction between SBR and graphene. The tensile properties of SBR/CB-RG composites improved significantly and the volume resistivity decreased compared with the SBR/CB blends. The thermal stability of SBR composites filled with CB and CB-RG showed slight difference. © 2014 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2015, 132, 41309.

25 citations

Journal ArticleDOI
TL;DR: In this article, a modified rapid-hardening cement using calcium sulfoaluminate clinker combined with a styrene butadiene (SB) polymer was used to resolve the problem of cracks caused by the rapid hydration heat produced during the early setting stages of rapid-Hardening cement.
Abstract: This study was performed to resolve the problem of cracks caused by the rapid hydration heat produced during the early setting stages of rapid-hardening cement. To address the hydration heat of rapid-hardening cement, we prepared a modified rapid-hardening cement using calcium sulfoaluminate clinker combined with a styrene butadiene (SB) polymer. The performance of SB polymeric emulsion-modified concrete made from modified rapid-hardening cement was assessed by determining shrinkage (change in length, and plastic and autogenous shrinkage). The modified rapid-hardening cement in combination with SB polymeric emulsion effectively reduced cracking. © 2009 Wiley Periodicals, Inc. J Appl Polym Sci, 2009

25 citations

Journal ArticleDOI
TL;DR: In this paper, a styrene-butadiene-styrene block copolymer (SBS) membrane was prepared by solution casting method and then was epoxidized with peroxyformic acid generated in situ to yield the epoxifiedized styrene -butadienes-structure and properties of ESBS membrane.

25 citations


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Performance
Metrics
No. of papers in the topic in previous years
YearPapers
2023118
2022229
2021159
2020239
2019313
2018348