Using a sulfur-bearing silane to improve rubber formulations for potential use in industrial rubber articles

Ansarifar, Ali; Saeed, Farhan; Movahed, Saeed Ostad; Wang, L.; Yasin, Khawaja Ansar; Hameed, Shahid

doi:10.1080/01694243.2012.705541

Cited by 14 publications

(21 citation statements)

References 30 publications

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“…Only a few large aggregates roughly 3 μm in size were seen and this was caused by the strong interaction between the PS particles. Normally, the silica surface is treated with bifunctional organosilane to reduce filler–filler interaction and increase dispersibility of the filler particles in rubber . Since no silane was used in this study, filler aggregates were expected to form in the rubber matrix.…”

Section: Resultsmentioning

confidence: 99%

Effect of hybrid reinforcement based on precipitated silica and montmorillonite nanofillers on the mechanical properties of a silicone rubber

Ismail

Ansarifar

Song

2013

Polymer Engineering & Sci

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Silicone rubber (SR) nanocomposites containing precipitated silica (PS), montmorillonite (MMT), and PS/MMT hybrid fillers were prepared through melt‐mixing technique. In the SR/PS/MMT nanocomposite, the hybrid filler weight ratio was increased progressively from 0.4 to 1.7 while keeping the MMT weight constant. The viscosity, cure characteristics, and mechanical properties of the nanocomposites were subsequently measured. The optimum cure time increased, and the scorch time and rate of cure decreased. Furthermore, when the hybrid filler weight ratio was raised to its optimum, the tensile strength, Young's modulus, modulus at 100 and 300% elongation (M100 and M300), elongation at break, stored energy density at break, and hardness of the nanocomposite improved. The stress–strain properties of the nanocomposite with the hybrid filler improved at high deformation in comparison with those containing the PS and MMT fillers. The MMT filler exfoliated in the SR/MMT nanocomposite but did not in the nanocomposites containing the hybrid filler. Notably, the mechanical properties of the nanocomposite benefitted from the hybrid filler. This was due to the filler–filler and filler–rubber network formation in the rubber by the PS particles. Finally, effect of the PS, MMT, and hybrid fillers on the energy loss or hysteresis of the rubber was measured. POLYM. ENG. SCI., 54:1909–1921, 2014. © 2013 Society of Plastics Engineers

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Section: Resultsmentioning

confidence: 99%

Effect of hybrid reinforcement based on precipitated silica and montmorillonite nanofillers on the mechanical properties of a silicone rubber

Ismail

Ansarifar

Song

2013

Polymer Engineering & Sci

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“…The metal-oxide nanoparticles have weak interfacial interactions with the rubber matrix due to their hydrophilic nature that causes their agglomeration and poor dispersion in the rubber matrix. This lowers the mechanical/chemical properties of the prepared rubbery nanocomposite. , For instance, it has been reported that silica nanoparticles disrupt the rubber curing process due to their acidic nature and surface hydroxyl groups. , In addition, nanoparticles tend to agglomerate in the rubber matrix due to their high surface energies, which is related to their high surface area …”

Section: Introductionmentioning

confidence: 99%

Improving the Mechanical/Anticorrosive Properties of a Nitrile Rubber-Based Adhesive Filled with Cerium Oxide Nanoparticles Using a Two-Step Surface Modification Method

et al. 2022

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To prepare a nanocomposite adhesive based on nitrile rubber (NBR) with excellent mechanical/anticorrosion properties, cerium oxide (CeO2) nanoparticles were grafted with bis-[3-(triethoxysilyl)propyl]tetrasulfide silane (TESPT) at different concentrations (i.e., 1, 5, 10, and 20 times the stoichiometric content). The surface-modified nanoparticles were characterized by Fourier transform infrared spectroscopy (FTIR), ζ-potential, X-ray photoelectron spectroscopy (XPS), thermogravimetric analysis (TGA), and field emission scanning electron microscopy (FE-SEM) techniques. The results showed that the steaming process resulted in an increase in the grafting ratio (R g) by 2.35 times. Pure and modified cerium oxide nanoparticles were added at 1.5, 4.5, and 7.5 wt % to a mixture of a phenolic resin and NBR compound to prepare adhesive samples. The prepared adhesives were evaluated for curing behavior and thermomechanical properties. The morphology of the adhesives was also characterized using SEM analysis. The bonding of adhesives to steel plates was measured by a cathodic disbonding test. The adhesive-coated steel plates were evaluated for anticorrosion performances using a salt spray test. It was found that surface-modified hydrothermally steamed CeO2 nanoparticles that had the highest silane grafting ratio enhanced the anticorrosion properties and cathodic disbonding of NBR-based adhesives. The curing rate index (CRI) and crosslinking of the NBR compound were enhanced using the modified and steamed nanoparticles. This also improved the interfacial interactions between rubber chains and nanoparticle surface, resulting in a 6 °C increase in the glass-transition temperature (T g) of NBR compared to the pristine rubber.

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“…Si‐69 treated PLFs (Si‐69/PLFs) were found to be effective filler in improving the storage modulus of NR compounds due to their excellent dispersion into the rubber matrix 75 . As claimed by the authors, Si‐69 can form chemical bridge bonds between rubber matrix and fibers surface 76–77 . More importantly, the storage modulus value at 25°C was found be much higher in Si‐69/PLFs filled NR sample than that of synthetic aramid fibers filled NR sample at same filler loading level.…”

Section: Properties Of Various Natural Fibers Based Rubber Compositesmentioning

confidence: 90%

Recent advances of natural fibers based green rubber composites: Properties, current status, and future perspectives

Roy

Debnath

Pongwisuthiruchte

et al. 2021

J of Applied Polymer Sci

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The searching of suitable alternatives to petroleum‐based fillers is an uncompromising challenge in present day rubber research. Recently, natural fibers are the part of great attention of both academic and industrial researchers due to their easy availability, environmental friendliness, and biodegradability. Natural fiber is cellulose‐rich material, which is preferentially used as alternative filler in rubber technology. This article reviews current advances in natural fibers filled rubber composites in terms of mechanical, thermal, and biodegradable properties (2010–2020). The incorporation of unmodified natural fibers as filler is not able to offer desired reinforcement in rubber composites. Several surface modification methods can be introduced to improve the overall performances of natural fibers filled rubber composites. Finally, the review clarifies present status and future prospects of natural fibers based advanced rubber composites in automobile industry. The successful designing of natural fibers based sustainable rubber composites can introduce a new era in green rubber technology.

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Using a sulfur-bearing silane to improve rubber formulations for potential use in industrial rubber articles

Cited by 14 publications

References 30 publications

Effect of hybrid reinforcement based on precipitated silica and montmorillonite nanofillers on the mechanical properties of a silicone rubber

Effect of hybrid reinforcement based on precipitated silica and montmorillonite nanofillers on the mechanical properties of a silicone rubber

Improving the Mechanical/Anticorrosive Properties of a Nitrile Rubber-Based Adhesive Filled with Cerium Oxide Nanoparticles Using a Two-Step Surface Modification Method

Recent advances of natural fibers based green rubber composites: Properties, current status, and future perspectives

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