Preparation of novel fillers, named networked silicas, and their effects of reinforcement on rubber compounds

Seo, Gon; Kaang, Shinyoung; Hong, Chang Kook; Jung, Dong Shin; Ryu, Chang Seok; Lee, Dong Hee

doi:10.1002/pi.2449

Cited by 13 publications

(12 citation statements)

References 12 publications

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“…In experiment, Seo et al 28 first proposed a concept for reinforcing silica, named networked silica, which was used to achieve enhanced reinforcing performance of silica and to eliminate the disadvantage of ethanol production and precure through coupling reagents in the preparation of silica-reinforced SBR compounds. 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.…”

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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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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“…Since TESPT was not added to the rubber compounds reinforced with SAP and SAP‐BGx, the amount of sulfur added increased to 2.5 phr when the amounts of silica added were 80 phr. Following the procedure described by us elsewhere, the silica‐filled rubber compounds were mixed in an internal mixer (Mirae SI Co.) with the capacity of 300 cm 3 at the fill factor of 0.70 and 50 rpm. The additives listed in Table were successively added and mixed following by the final addition of insoluble sulfur and accelerators.…”

Section: Methodsmentioning

confidence: 99%

“…The surface modification of silica with accelerator and antioxidant also causes the considerable improvement of the mechanical properties of the rubber compounds . The introduction of networks among silica particles induces the entanglement of rubber chains with the networks, lowering the hysteresis of the rubber compounds during dynamic deformation . The application of an operando IR spectroscopy, modulated‐temperature differential scanning calorimetry, TEM network visualization, and atomic force microscopy dramatically contributed to the understanding of the reinforcement of silica to SBR, in terms of interface and energy …”

Section: Introductionmentioning

confidence: 99%

“…The networked silicas whose silica particles are combined by chemical bonds formed by the reaction of organic substances exclude the necessity of coupling agents from the SBR compounds . The entanglement of rubber chains with the connection bonds of networked silicas, not by the bond formation through coupling agents, intensifies the physical interaction between rubber chains and silica particles, improving the tensile properties of the rubber compounds.…”

Section: Introductionmentioning

confidence: 99%

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Reinforcement of styrene‐butadiene/polybutadiene rubber compounds by modified silicas with different surface and networked states

Ryu

Yang

Park

et al. 2017

J of Applied Polymer Sci

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In this study, the reinforcement performance of the modified silicas prepared through the incorporation of 3‐aminopropyltriethoxy silane (AP) and further reaction of bisphenol A diglycidyl ether (BG) to styrene‐butadiene/butadiene rubber (SBR/BR) compounds was investigated to discuss the effect of surface and networked states on the properties of silica‐filled rubber compounds. The adjustment of the ratio of BG to AP varied the surface and networked states of silica. The amino and glycidyl groups dispersed on the silica and the networks formed on/between silica particles considerably influenced the properties of SBR/BR compounds reinforced with the modified silicas. The presence of amino group increased viscosity of the rubber compounds due to the attrition between rubber chains and silica particles, while the entanglement of rubber chains with the networks successfully improve both wet traction and rolling resistance, without sacrificing the fundamental properties of the rubber compounds, even though no coupling agents were applied. © 2017 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2017, 134, 44893.

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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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Preparation of novel fillers, named networked silicas, and their effects of reinforcement on rubber compounds

Cited by 13 publications

References 12 publications

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

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

Reinforcement of styrene‐butadiene/polybutadiene rubber compounds by modified silicas with different surface and networked states

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

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