Effectively reinforcing roles of the networked silica prepared using 3,3′-bis(triethoxysilylpropyl)tetrasulfide in the physical properties of SBR compounds

Seo, Gon; Park, Suk Moon; Ha, Kwang; Choi, Kyoung Tae; Hong, Chang Kook; Kaang, Shinyoung

doi:10.1007/s10853-009-4175-3

Cited by 40 publications

(13 citation statements)

References 12 publications

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“…• the coupling reaction produces alcohols as by-products which may cause chronic defects in the final product [14]; • the higher material costs of the coupling agents; and • the higher production costs due to the difficult processing behavior.…”

Section: Introductionmentioning

confidence: 99%

Synthesis and utilization of epoxidized polybutadiene rubber as an alternate compatibilizer in green-tire composites

et al. 2017

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In the present study, epoxidized polybutadiene rubber (EBR) was synthesized from commercial-grade cispolybutadiene rubber (BR) and was characterized by NMR, FTIR, differential scanning calorimetry, thermogravimetric analysis and surface energy by contact angle measurement. To circumvent the drawback of the existing compatibilizers, the EBR was successfully used as an alternate compatibilizer for a silica-based 'green-tire' composite. The significant rise of surface energy was observed after epoxidation of BR, which represents the enhancement of the polar character of the rubber chains and eventually leads to improved compatibility between silica fillers and rubber chains. Out of various epoxidation levels, EBR with 30 mol% epoxidation showed the best compatibilizing effect. The optimum loading of EBR was found to be 12% with respect to total silica content. Apart from using EBR alone as a compatibilizer, combination of EBR with commercial silane-coupling agents, namely, bis(triethoxy-silylpropyl) tetrasulphide (TESPT) and 3-aminopropyltrimethoxy silane, was also investigated. The physico-mechanical and dynamic properties of the compounds with a combination of were comparable with those of the compound prepared using TESPT compatibilizer. The results observed with EBR-compatibilized samples revealed that EBR has a potential to be an effective compatibilizer which eventually could minimize the drawbacks associated while using commercial silane as a compatibilizer at the industrial scale.

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Section: Introductionmentioning

confidence: 99%

Synthesis and utilization of epoxidized polybutadiene rubber as an alternate compatibilizer in green-tire composites

et al. 2017

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“…The networked silica was prepared by connecting silica particles with amine and glycidoxy groups, which was then compounded in SBR, exhibiting a significant enhancement of the tensile strength accompanied with a moderate increase of the modulus at a high loading of 70 phr even without using any coupling reagents. In another study 29 , they prepared a networked silica using bis-(triethoxysilylpropyl)-tetrasulfide (TESPT) as a connecting chemical at various loading levels. They found that the styrene-butadiene rubber (SBR) compounds reinforced with the networked silica exhibited low filler-filler interaction and high rubber-filler interactions due to the entanglements between the rubber molecules and the connecting chains of the networked silica.…”

Section: Introductionmentioning

confidence: 99%

Designing polymer nanocomposites with a semi-interpenetrating or interpenetrating network structure: toward enhanced mechanical properties

Wang

Hou

Zheng

et al. 2017

Phys. Chem. Chem. Phys.

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Using short polymer chains and through molecular dynamics simulation, we designed a well-dispersed nanoparticle (NP) network, which was then incorporated with the polymer matrix. First, we examined the effects of the dual-end grafted chains flexibility and density on the spatial distribution of this particular polymer nanocomposites system. By changing the interaction strength between the matrix polymer chains and the dual-end grafted chains in the semi-interpenetrating network system (NP network), we analyzed the interpenetration state between the linear polymer matrix and the NP network via calculating the total interfacial interaction energy. Moreover, the uniaxial tensile stress-strain and orientation behavior influenced by the interaction strength between the matrix polymer and the grafted chains were investigated for both the semi-interpenetrating network system and the interpenetrating network system (NP network and matrix network). Furthermore, for the interpenetrating network system, we modulated the integrity of the NP network ranging from 0% to 100%, corresponding to the gradual transition of the dispersion morphology of the NPs from the aggregation state to the uniform dispersion state, to examine the effect of the NP network on the tensile mechanical behavior. In particular, by simulating the dynamic shear process in the semi-interpenetrating network system, the composites were found to exhibit a lower non-linear behavior (the famous Payne effect), a higher storage modulus, and a lower tangent loss at large strain amplitude with increasing NP network integrity. In general, our results could provide a new approach for the design of high-performance polymer nanocomposites by taking advantage of the semi-interpenetrating or interpenetrating network reinforcing structure.

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“…The SBR compounds were mixed according to the procedure (ISO 5794-3-2011) described in our previous paper. 18,19 Mixing was carried out using an internal mixer (Namyang Co.) with a capacity of 300 cm…”

Section: Preparation Of Rubber Compoundsmentioning

confidence: 99%

The Effect of Surface Area of Silicas on Their Reinforcing Performance to Styrene-butadiene Rubber Compounds

Ryu¹,

Kim²,

Kim³

et al. 2016

Elastomers and Composites

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The effect of the surface area of silicas on their reinforcing performance to styrene-butadiene rubber (SBR) compounds was systematically investigated. The feasibility of the Brunauer-Emmett-Teller surface area (S BET ) as a parameter representing the characteristics of the silicas was discussed compared to the mesopore volume, c value, oil absorption, and uptake of silane. The increase in S BET of silicas caused a considerable increase in Mooney viscosity, minimum torque, and hysteresis loss of the silica-filled SBR compounds, while significantly enhancing their abrasion property. These changes were explained by the attrition between the hydrophilic silica surface and the hydrophobic rubber chains. As expected, the change in S BET did not induce any remarkable changes in the cure, processing, tensile, and dynamic properties of the silicafilled SBR compounds because the crosslinking density of the rubber chains mainly determined these properties.

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Effectively reinforcing roles of the networked silica prepared using 3,3′-bis(triethoxysilylpropyl)tetrasulfide in the physical properties of SBR compounds

Cited by 40 publications

References 12 publications

Synthesis and utilization of epoxidized polybutadiene rubber as an alternate compatibilizer in green-tire composites

Synthesis and utilization of epoxidized polybutadiene rubber as an alternate compatibilizer in green-tire composites

Designing polymer nanocomposites with a semi-interpenetrating or interpenetrating network structure: toward enhanced mechanical properties

The Effect of Surface Area of Silicas on Their Reinforcing Performance to Styrene-butadiene Rubber Compounds

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