Bio-inspired polydopamine-coated clay and its thermo-oxidative stabilization mechanism for styrene butadiene rubber

RSC Advances ◽  
2015 ◽  
Vol 5 (12) ◽  
pp. 9314-9324 ◽  
Author(s):  
Lu Wang ◽  
Linjia Hu ◽  
Shangbing Gao ◽  
Detao Zhao ◽  
Liqun Zhang ◽  
...  
Keyword(s):  
Electron Spin Resonance ◽  
Styrene Butadiene Rubber ◽  
Radical Scavenger ◽  
Butadiene Rubber ◽  
Stabilization Mechanism ◽  
Oxidative Stabilization ◽  
Spin Resonance ◽  
Styrene Butadiene ◽  
Oxidative Ageing

In situ thermal-oxidative ageing tests by electron spin resonance (ESR) evidence that polydopamine (PDA) deposited onto clay can act as excellent radical-scavenger and thus significantly diminish the thermolysis of styrene butadiene rubber (SBR).

scholarly journals Synthesis of Modified Styrene-Butadiene Rubber Latex Containing Triethoxysilyl Group and Its in situ Silica Filling

2003 ◽  
Vol 76 (7) ◽  
pp. 234-239 ◽  
Author(s):  
Kiyoshi SUNADA ◽  
Hiroki TAKESHITA ◽  
Masamitsu MIYA ◽  
Tsukasa NAKAMURA ◽  
Katsuhiko TAKENAKA ◽  
...  
Keyword(s):  
Styrene Butadiene Rubber ◽  
Butadiene Rubber ◽  
Rubber Latex ◽  
In Situ Silica ◽  
Styrene Butadiene

A new method of styrene-butadiene rubber curing using in situ generated Lewis acids

Polimery ◽  
2015 ◽  
Vol 61 (11/12) ◽  
pp. 742-746
Author(s):  
Paulina Dmowska-Jasek ◽  
Wladyslaw M. Rzymski ◽  
Emilia Koscista ◽  
Kinga Bociong
Keyword(s):  
Lewis Acids ◽  
New Method ◽  
Styrene Butadiene Rubber ◽  
Butadiene Rubber ◽  
Styrene Butadiene

REACTIONS OF SILICA–SILANE RUBBER AND PROPERTIES OF SILANE–SILICA/SOLUTION-POLYMERIZED STYRENE–BUTADIENE RUBBER COMPOSITE

2016 ◽  
Vol 89 (3) ◽  
pp. 526-539 ◽  
Author(s):  
Yan-Chun Tao ◽  
Bin Dong ◽  
Li-Qun Zhang ◽  
You-Ping Wu
Keyword(s):  
Temperature Effects ◽  
Rolling Resistance ◽  
Rubber Matrix ◽  
Styrene Butadiene Rubber ◽  
Cross Linking ◽  
Butadiene Rubber ◽  
Silane Coupling Agents ◽  
In Situ Modification ◽  
Styrene Butadiene

ABSTRACT Silane coupling agents can effectively improve the silica dispersion in rubber matrix and strengthen the interfacial interaction, and they have been widely used in tire treads to achieve low rolling resistance. 3-mercaptopropyl-ethoxy-bis(tridecyl-pentaethoxy-siloxane) (Si747) is a new coupling agent, and the temperature effects on the reactions between Si747 and silica and between Si747 and solution-polymerized styrene–butadiene rubber (SSBR) were investigated via Fourier transform infrared spectroscopy, thermogravimetric analysis, and solid-state 13C nuclear magnetic resonance in the present study. The results show that the Si747 grafting degree on the silica surface increases with increasing temperature, the cross-linking reaction between Si747 and SSBR can occur at 130 °C, and the reaction degree gradually increases with enhancing temperature. The silane–silica/SSBR composites were prepared at different in situ modification temperatures, and the temperature effects on the bound rubber content, filler dispersion, mechanical properties, and viscoelastic properties were investigated. It reveals that slightly pre-cross-linking between Si747 and SSBR lowers the tanδ at 60 °C of the SSBR/silane–silica composites, and in situ modification at 150 °C achieves a combination of low rolling resistance and high wet grip for silane–silica/SSBR composites.

Fabrication of a Novel Water Swellable Styrene-butadiene Rubber through the In-situ Polymerization of Lithium Acrylate

Polymer Korea ◽  
2016 ◽  
Vol 40 (5) ◽  
pp. 684 ◽  
Author(s):  
Xueliang Jiang ◽  
Xiong Xu ◽  
Tongchuan Geng ◽  
Feng You ◽  
Wei Wang ◽  
...  
Keyword(s):  
In Situ Polymerization ◽  
Styrene Butadiene Rubber ◽  
Butadiene Rubber ◽  
Styrene Butadiene

scholarly journals Styrene-Butadiene Rubber by Miniemulsion Polymerization Using In Situ Generated Surfactant

Polymers ◽  
2020 ◽  
Vol 12 (7) ◽  
pp. 1476
Author(s):  
Anderson M. S. Medeiros ◽  
Elodie Bourgeat-Lami ◽  
Timothy F. L. McKenna
Keyword(s):  
Particle Diameter ◽  
Weight Ratio ◽  
Miniemulsion Polymerization ◽  
Styrene Butadiene Rubber ◽  
Butadiene Rubber ◽  
Secondary Nucleation ◽  
Potassium Oleate ◽  
Solids Content ◽  
Styrene Butadiene

An alternative approach for the synthesis of styrene butadiene rubber (SBR) copolymer latexes was explored in order to obtain low gel fractions and high solid contents. The ultra-turrax-assisted miniemulsion stabilized by in situ surfactant generation was adopted as the main strategy since this technique can inhibit the eventual presence of secondary nucleation producing polybutadiene particles and also control the cross-linking degree. Styrene monomer was first miniemulsified using an ultra-turrax and in situ generated surfactant using either hexadecane (HD) or octadecyl acrylate (ODA) as the hydrophobe. Dynamic light scattering (DLS) measurements of droplet size indicated faster stabilization and the production of smaller droplet diameters ca. 190 nm (PdI = 0.08) when employing in situ generated potassium oleate (K-Oleate) in comparison to SDS-based miniemulsions. High butadiene-level SBR latexes with ca. 50% solids content, a glass transition temperature (Tg) of −52 °C, and a butadiene to styrene weight ratio of 75:25, were then obtained using the miniemulsion droplets as seeds. Turbiscan and DLS measurements revealed a very stable resulting latex with SBR particle diameter of ca. 220 nm and a low polydispersity index (PdI). Secondary nucleation was prevented as indicated by the low Np/Nd value. Cryo-TEM images showed a narrow distribution of particle size as well as the absence of agglomeration. The gel content was below 10% when tert-dodecyl mercaptan (t-DM) was used as chain transfer agent (CTA).

Rubber Blend of 80/20 NR/SBR Reinforced with Nanosilica and PS-Encapsulated Nanosilica

2011 ◽  
Vol 695 ◽  
pp. 332-335 ◽  
Author(s):  
Anyaporn Boonmahitthisud ◽  
Zheng Hua Song
Keyword(s):  
Sodium Dodecyl ◽  
Dry Weight ◽  
Rubber Matrix ◽  
Styrene Butadiene Rubber ◽  
Mechanical And Thermal Properties ◽  
Butadiene Rubber ◽  
Rubber Blends ◽  
Rubber Blend ◽  
Styrene Butadiene

In this study, rubber blend of natural rubber (NR) and styrene butadiene rubber (SBR) at 80/20 NR/SBR was reinforced with nanosilica (nSiO2) and polystyrene-encapsulated nanosilica (PS-nSiO2) in the latex state. The latex of PS-nSiO2 was synthesized by in situ differential microemulsion polymerization using sodium dodecyl sulfate and azobisisobutyronitrile as the surfactant and initiator, respectively. The nanoparticles at the amount of 0.1, 0.2, 0.3 and 0.4 parts per hundred of rubber (based on dry weight of nSiO2) were dispersed in the rubber blend compound and subsequently cured at 80°C for 3 h to prepare rubber nanocomposites. Using this technique, nanoparticles could be well dispersed in the rubber matrix. The influences of the nSiO2 and PS-nSiO2 on the mechanical and thermal properties of the resulting nanocomposites were quantified and compared. It is found that the tensile properties and thermal stability of the rubber blends were improved with the appropriate amounts of the nanofillers. However, the PS-nSiO2 exhibited reinforcing efficiency superior to nSiO2 with the same nSiO2 content due to the stronger rubber-filler interfacial adhesion.

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