Synthesis, structure, properties, and tribological behavior of materials based on polythio urethanes modified by polyfluorine- and copper-containing Na+-montmorillonite under conditions of thermo-oxidative and light aging

Novakov, I. A.; Нистратов, А. В.; Kudashev, S. V.; Gugina, S. Yu.

doi:10.3103/s1068366611050084

Cited by 11 publications

(3 citation statements)

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“…Owing to its distinctive twodimensional layered nanostructure and cation exchange characteristics, many efforts have been made to expand its application by exploring its physical and chemical properties [36][37][38]. In addition, Na-MMT nanoparticles also have strong adsorption ability and good dispersibility in polymer-matrix composites and therefore can be employed as nanofillers to increase the mechanical strength, thermal stability, and wear resistance of polymer materials [39][40][41]. However, to the best of our knowledge, few investigations of the friction and wear properties of PES and PTFE blend composites reinforced with Na-MMT nanoparticles have been reported.…”

Section: Introductionmentioning

confidence: 99%

RETRACTED ARTICLE: Thermal, mechanical, and tribological properties of sodium-montmorillonite-nanoparticle-reinforced polyethersulfone and polytetrafluoroethylene ternary composites

Yan

Xue

et al. 2020

Friction

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Polyethersulfone (PES) and polytetrafluoroethylene (PTFE) blend composites reinforced with sodiummontmorillonite (Na-MMT) nanoparticles were prepared by cold molding and vacuum sintering. The effects of the Na-MMT content on the thermal, nanomechanical, and tribological properties of the Na-MMT/PES/PTFE ternary composites were investigated in detail. The results indicate that at the optimal content, Na-MMT nanoparticles can be uniformly dispersed in the PES/PTFE binary blend composites and generate strong interfacial bonding with the polymeric matrix. Both the thermal stability and the nanomechanical properties of the PES/PTFE binary blend composites are clearly improved by the incorporation of Na-MMT nanoparticles. Among these PTFE-based composites, the Na-MMT/PES/PTFE ternary composite containing 10.0 wt% of Na-MMT nanoparticles exhibits the optimal friction and wear performance. Compared with those of the PES/PTFE blend composite, the friction coefficient (μ = 0.16) and wear rate (k = 2.63 × 10 −14 m 3 /(N•m)) of the 10.0 wt% Na-MMT/PES/PTFE ternary composite are 19.1% and 97.2% lower, respectively. The significant enhancement of the wear resistance of the Na-MMT/PES/PTFE ternary composite is attributable to the formation of PTFE self-lubricating transfer films. The transfer films generated on the worn surfaces of GCr15 steel balls can prevent direct contact between the PTFE composites and their metal counterparts, thereby protecting the polymer composites from damage.

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Section: Introductionmentioning

confidence: 99%

RETRACTED ARTICLE: Thermal, mechanical, and tribological properties of sodium-montmorillonite-nanoparticle-reinforced polyethersulfone and polytetrafluoroethylene ternary composites

Yan

Xue

et al. 2020

Friction

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“…One of typical and widely used silicate minerals is montmorillonite (MMT) [26][27][28][29]. Polyfluoralkyl organophilic layered Na-MMT improved both mechanical and tribological properties of polydiene urethanes [30,31]. The natural layered structure of silicate makes it possess good solid lubrication [32] with the well-studied interaction mechanism [33].…”

Section: Introductionmentioning

confidence: 99%

Tribological Properties of Fabric Self-Lubricating Liner Based on Organic Montmorillonite (OMMT) Reinforced Phenolic (PF) Nanocomposites as Hybrid Matrices

et al. 2015

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Organic montmorillonite (OMMT) reinforced phenolic (PF) nanocomposites with OMMT contents of 2 and 5 wt% were fabricated by the two-step OMMT intercalation process, resulting in the further increase of interlayer spacing of OMMT from 2.07 nm to 4.27 nm. Prepared OMMT/PF composites were found to possess a mix of intercalated and agglomerated clay structures via X-ray diffraction (XRD) analysis and transmission electron microscopy (TEM). TG-DTG and DSC results revealed that the thermal stability of PF matrices was enhanced by the incorporation of OMMT. With OMMT/PF nanocomposites as hybrid matrices, fabric self-lubricating liners were prepared to evaluate their tribological properties. Effects of OMMT on friction coefficient, wear loss and wear morphology of fabric self-lubricating liner, based on OMMT/PF nanocomposites, were studied via long-term friction and wear tests. Tribological properties of liners with different OMMT contents were investigated by imitating high velocity/light load condition. The addition of OMMT appears to enhance the friction and wear properties of fabric self-lubricating liner and the preferable addition content of the OMMT is around 2 wt%.

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“…Previous studies [1][2][3][4][5][6][7] showed the promise of using polyfluorinated alcohols H(CF 2 CF 2 ) n CH 2 OH (n = 2-5) in the form of their organomineral complexes with layered-structure inorganic polymer montmorillonite as fillers for heterochain polymers such as polydiene-and polythiourethanes, polysulphides, and polyamide-6, which can be used for the manufacture of non-porous sports surfaces, waterproofing and roofing coatings, structural seals, and articles of tribotechnical designation.…”

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confidence: 99%

The Production of Fluorine-Containing Composite Materials Based on Polydieneurethane and Montmorillonite

Kudashev

Нистратов

Арисова

et al. 2018

International Polymer Science and Technology

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The effect of organomineral complexes of 1,1,3-trihydroperfluoropropanol-1 (modifier) with layered aluminosilicate montmorillonite (LAM) as filler on the structure and properties of fluorine-containing polydieneurethane (FPU) was investigated. The modifier and the LAM were introduced into the FPU at the stage of its production. Using a combination of methods – X-ray diffraction analysis (DRON-3), electron microscopy (Versa 3D DualBeam, USA), and Fourier IR spectroscopy (Nicolet-6700, USA) – we studied features of the layer separation of LAM in the elastomer matrix as a function of the modifier concentration. It was shown that FPU specimens filled with LAM containing 5.0% polyfluorinated alcohol disintegrate better and possess a higher resistance to thermooxidative ageing.

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Synthesis, structure, properties, and tribological behavior of materials based on polythio urethanes modified by polyfluorine- and copper-containing Na+-montmorillonite under conditions of thermo-oxidative and light aging

Cited by 11 publications

References 0 publications

RETRACTED ARTICLE: Thermal, mechanical, and tribological properties of sodium-montmorillonite-nanoparticle-reinforced polyethersulfone and polytetrafluoroethylene ternary composites

RETRACTED ARTICLE: Thermal, mechanical, and tribological properties of sodium-montmorillonite-nanoparticle-reinforced polyethersulfone and polytetrafluoroethylene ternary composites

Tribological Properties of Fabric Self-Lubricating Liner Based on Organic Montmorillonite (OMMT) Reinforced Phenolic (PF) Nanocomposites as Hybrid Matrices

The Production of Fluorine-Containing Composite Materials Based on Polydieneurethane and Montmorillonite

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