Synergistic impact of ionic liquid on interfacial interaction and viscoelastic behaviors of silica filled nitrile butadiene rubber nanocomposites

Hussain, Munir; Yasin, Sohail; Ali, Amjad; Li, Zhi-Yun; Fan, Xinpeng; Song, Yihu; Zheng, Qiang; Wang, Wanjie

doi:10.1016/j.compositesa.2022.107202

Cited by 18 publications

(4 citation statements)

References 99 publications

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“…Toward this dilemma, many efforts have been made, including silane coupling agents [110], physical coating [111], ionizing radiation [112], chemical reactions [113], and macromolecular functionalization [114] methods. With the development of ionic liquid-modified nanofiller technology, many studies have reported that ILs could improve silica dispersion within matrix materials and enhance the interfacial bond strength [39,40,95,115].…”

Section: Silicamentioning

confidence: 99%

Multifunctional Applications of Ionic Liquids in Polymer Materials: A Brief Review

et al. 2023

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As a new generation of green media and functional materials, ionic liquids (ILs) have been extensively investigated in scientific and industrial communities, which have found numerous ap-plications in polymeric materials. On the one hand, much of the research has determined that ILs can be applied to modify polymers which use nanofillers such as carbon black, silica, graphene oxide, multi-walled carbon nanotubes, etc., toward the fabrication of high-performance polymer composites. On the other hand, ILs were extensively reported to be utilized to fabricate polymeric materials with improved thermal stability, thermal and electrical conductivity, etc. Despite substantial progress in these areas, summary and discussion of state-of-the-art functionalities and underlying mechanisms of ILs are still inadequate. In this review, a comprehensive introduction of various fillers modified by ILs precedes a systematic summary of the multifunctional applications of ILs in polymeric materials, emphasizing the effect on vulcanization, thermal stability, electrical and thermal conductivity, selective permeability, electromagnetic shielding, piezoresistive sensitivity and electrochemical activity. Overall, this review in this area is intended to provide a fundamental understanding of ILs within a polymer context based on advantages and disadvantages, to help researchers expand ideas on the promising applications of ILs in polymer fabrication with enormous potential.

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Section: Silicamentioning

confidence: 99%

Multifunctional Applications of Ionic Liquids in Polymer Materials: A Brief Review

et al. 2023

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“…Many studies have been conducted to uncover the principles governing the use of ionic liquids in rubber applications, to address this issue. For example, Hussain et al 18 modified the silica filled nitrile butadiene rubber (NBR) with 1‐ethyl‐3‐methylimidazolium. By analyzing the rheological behaviors, the addition of ionic liquids enhances the interfacial interaction between the rubber and the filler.…”

Section: Introductionmentioning

confidence: 99%

Effect of 1‐ethylpyridinium bromide on enhancing the dispersion of silica and interfacial strength in rubber‐silica composite

Sun,

Liu,

Fan

et al. 2024

Polymer Composites

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Improving the interfacial interaction between silica and rubber is always a key issue to be solved for silica‐filled rubbers. In this paper, composites are prepared by an in‐situ modification method using 1‐ethylpyridinium bromide ([EPy]Br) as the raw material, and the effect of its dosage on the interfacial interactions and macroscopic properties of silica‐filled natural rubber (NR) composites is investigated. The effect of [EPy]Br on silica dispersion and interfacial interaction between silica and NR is verified through rheological tests and calculations of glass layers. Compared with the original samples, composite performance is optimized when the usage amount is at 1phr which increases tensile strength by 5 MPa, enhances abrasion resistance by 24%, and shortens optimum curing time in half. This study is expected to provide a new strategy for improving the processability of silica‐containing composites while reducing energy consumption.Highlights [EPy]Br enhances the interaction between rubber and filler while modifying the surface of silica. Increasing the dosage of [EPy]Br leads to a reduction in the Payne effect. The addition of [EPy]Br enhances the dispersion of silica in natural rubber. [EPy]Br significantly reduces the duration of the induction period for vulcanization. The dosage of [EPy]Br allows for controlling the mechanical properties of NR/SiO2.

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“…However, only five metallocene catalysts have been kinetically studied in the literature, partly because there are no efficient methods or rapid kinetic models for obtaining necessary information, such as active site counts. [7][8][9][10][11][12][13] The basic steps of metallocene-catalyzed olefin polymerization are well known. Clark R.…”

Section: Introductionmentioning

confidence: 99%

Ansa-metallocene Catalyst based on 3-phenyl and 4-methyl Substituted: Catalyst Evaluation in Conjugated and Non-conjugated Diene Polymerization

ALI,

Nadeem,

Naveed

et al. 2023

Preprint

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In this contribution, we describe the kinetics associated with the rac-Me2Si[2-Me-4-Ph-Ind]2ZrCl2 (Cat-1)/borate/TIBA catalyzed copolymerization of E/dienes (isoprene (IP), butadiene (BD), 5-ethylidene-2-norbornene (ENB), 4-vinylcyclohexene (VCH) and vinyl norbornene (VNB)), and E/diene/1-hexene (1H) terpolymerization by using thiophenecarbonyl chloride (TPCC) that was used in Ziegler-Natta (Z-N) and metallocene-catalyzed polyethylene (PE) and polypropylene (PP) and E/P polymerizations. In both types of polymerizations, a higher amount of dienes was incorporated when VNB (2.70 mole %) and VCH (1.56 mole %) were added as comonomer, but IP and BD were incorporated with the moderated rate (0.6-1.1 mole %) with higher activities (3.45x106gm/mmolMt·h). The active center [Zr]/[C*] fraction is higher (61%) than previously reported PE polymerizations, especially in the case of E/IP, E/BD and E/IP/1H but lower than E/P (87%) copolymerization. Significantly, IP and BD activated the inactive catalytic sites that were dormant in the PE. The propagation rate constant (kpE) with IP was higher (kp564 Lmol-1s-1), while kpE with VNB (kp379 Lmol-1s-1) and VCH (kp304 Lmol-1s-1), which were lower than PE. This difference is built because of the diffusion barrier in the system. Compared to E/diene copolymers, kpE values in E/diene/1H terpolymerizations for IP, VCH, and VNB are higher and stable except ENB and determine that 1H prevents the insertion of dienes and reduces the crystalline properties resultant moderate kpE. Even though the E/BD copolymers decreased butadiene content of over 2 mol% resulted in better crystalline characteristics, lower diffusion barriers, and a higher kpE value. In concept, IP and BD are linear and readily available for coordination. While VCH, ENB and VNB are cyclic and bulky, metallocene in contact ion pairs cannot accept ENB, VNB, and VCH for coordination and subsequently act as dormant in the polymerization.

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Synergistic impact of ionic liquid on interfacial interaction and viscoelastic behaviors of silica filled nitrile butadiene rubber nanocomposites

Cited by 18 publications

References 99 publications

Multifunctional Applications of Ionic Liquids in Polymer Materials: A Brief Review

Multifunctional Applications of Ionic Liquids in Polymer Materials: A Brief Review

Effect of 1‐ethylpyridinium bromide on enhancing the dispersion of silica and interfacial strength in rubber‐silica composite

Ansa-metallocene Catalyst based on 3-phenyl and 4-methyl Substituted: Catalyst Evaluation in Conjugated and Non-conjugated Diene Polymerization

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