Studies of molecular dynamics of carboxylated acrylonitrile-butadiene rubber composites containing in situ synthesized silica particles

Pietrasik, Joanna; Gaca, Magdalena; Zaborski, Marian; Okrasa, Lidia; Boiteux, Gisèle; Gain, Olivier

doi:10.1016/j.eurpolymj.2009.10.002

Cited by 22 publications

(13 citation statements)

References 54 publications

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“…The affinity of silica particles grown in situ by sol–gel process toward NR phase in NR/NBR blend system was revealed by one of our previous studies . There are also some reports available in the literature on in situ silica generation into NBR latex and carboxylated nitrile rubber (XNBR) by sol–gel reaction . Nevertheless, in situ silica generation in NBR matrix before crosslinking has not been reported till now where simultaneously silane coupling agent is used.…”

Section: Introductionmentioning

confidence: 87%

Effect of silane integrated sol–gel derived in situ silica on the properties of nitrile rubber

Kapgate

Das

Basu

et al. 2014

J of Applied Polymer Sci

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Nitrile rubber/silica composites are prepared by a sol-gel process using tetraethoxysilane as precursor in the presence of cmercaptopropyltrimethoxysilane as a silane coupling agent. Here, we follow a novel processing route where the silica particles are generated inside the rubber matrix before compounding with vulcanizing ingredients. The effect of in situ generated silanized silica on the properties of the rubber composite has been evaluated by studying curing characteristics, morphology, mechanical and dynamic mechanical properties. Enhanced rubber-filler interaction of these composites is revealed from stress-strain studies and dynamic mechanical analysis. Excessive use of silane shows an adverse effect on mechanical properties of the composites. Due to finer dispersed state of the in situ silica and enhanced rubber-filler interaction, the mechanical properties and thermal stability of the composites are improved compared to corresponding ex situ processed composite.

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Section: Introductionmentioning

confidence: 87%

Effect of silane integrated sol–gel derived in situ silica on the properties of nitrile rubber

Kapgate

Das

Basu

et al. 2014

J of Applied Polymer Sci

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“…The literature contains very interesting reports indicating the use of both pyrogenic and precipitated silica in the formation of modern polymer composites, e.g., natural rubber [1], polyurethane (PUR) [2], polyethylene (PE) [3], polypropylene (PP) [4], polystyrene (PS) [5], poly(vinyl chloride) (PVC) [6], polyhydroxyethylmethacrylate (pHEMA) [7], poly(methyl acrylate) (PMA) [8], poly(butylene terephthalate) (PBT) [9], acrylonitrile-butadiene elastomer (NBR) [10] or carboxylated acrylonitrile-butadiene elastomer (XNBR) [11], and epoxy resin [12]. Motivation for the use of silicon dioxide as a polymer filler comes primarily from its high thermal stability and the favorable strength properties of the resulting composites.…”

Section: Introductionmentioning

confidence: 99%

Preparation and Characterization of Novel PVC/Silica–Lignin Composites

et al. 2015

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An advanced SiO 2 -lignin hybrid material was obtained and tested as a novel poly(vinyl chloride) (PVC) filler. The processing of compounds of poly(vinyl chloride) in the form of a dry blend with silica-lignin hybrid material and, separately, with the two components from which that material was prepared, was performed in a Brabender mixing chamber. An analysis was made of processing (mass melt flow rate, MFR), thermal (thermogravimetric analysis, Congo red and Vicat softening temperature test) and tensile properties of the final PVC composites with fillers in a range of concentrations between 2.5 wt % and 10 wt %. Additionally, the effects of filler content on the fusion characteristics of PVC composites were investigated. The homogeneity of dispersion of the silica-lignin hybrid material in the PVC matrix was determined by optical microscopy and SEM. Finally, it should be noted that it is possible to obtain a PVC composite containing up to 10 wt % of silica-lignin filler using a melt processing method. The introduction of hybrid filler into the PVC matrix results in a homogeneous structure of the composites and positive processing and functional properties, especially thermal stability and Vicat softening temperature.

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“…Polymeric materials containing pendant ionic groups are called ionomers [7]. It is possible to form elastomers with different kinds of crosslinks by the selection of the crosslinking agents and crosslinking procedures, which will modify the properties of the ionomers and hence their specific applications [14,19,20]. The exceptional properties of elastomers containing ionic crosslinks have generated extensive interest in the production of such elastomers [6,21,22,23,24,25].…”

Section: Introductionmentioning

confidence: 99%

Effect of Zinc Oxide Modified Silica Particles on the Molecular Dynamics of Carboxylated Acrylonitrile-Butadiene Rubber Composites

et al. 2017

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This work examines the molecular dynamics of carboxylated acrylonitrile-butadiene rubber crosslinked with zinc oxide modified silica particles. ZnO/SiO 2 with the wide range of ZnO concentrations were used as both a crosslinking agent and filler. A series of thermal measurements were applied to the characterization of the samples: differential scanning calorimetry, dynamical mechanical thermal analysis, and dielectric relaxation spectroscopy. A complementary experimental technique, which is equilibrium swelling in solvents, confirms the presence of ionic crosslinks, which are created between zinc ions and the functional carboxyl groups of the rubber, within the structure of the vulcanizates. These interactions influenced not only the affinity of the vulcanizates to solvents, but also their dynamic mechanical and dielectric properties. In these investigations, the influence of concentration of ZnO on the surface of the ZnO/SiO 2 on the properties of the vulcanizates are described.

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Studies of molecular dynamics of carboxylated acrylonitrile-butadiene rubber composites containing in situ synthesized silica particles

Cited by 22 publications

References 54 publications

Effect of silane integrated sol–gel derived in situ silica on the properties of nitrile rubber

Effect of silane integrated sol–gel derived in situ silica on the properties of nitrile rubber

Preparation and Characterization of Novel PVC/Silica–Lignin Composites

Effect of Zinc Oxide Modified Silica Particles on the Molecular Dynamics of Carboxylated Acrylonitrile-Butadiene Rubber Composites

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