Tribological properties investigation of the thermoplastic elastomers surface with the AFM lateral forces mode

Кузнецова, Т. А.; Zubar, T.I.; Lapitskaya, V. A.; Sudzilouskaya, K A; Чижик, С. А.; Диденко, А. Л.; Svetlichnyi, V. M.; Вылегжанина, М. Э.; Kudryavtsev, V. V.; Sukhanova, T. E.

doi:10.1088/1757-899x/256/1/012022

Cited by 26 publications

(20 citation statements)

References 7 publications

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“…The tip radius was specially blunted by pre-scanning to curvature 100 nm. Such preparation prevents the probe from further blunting and keeps the contact condition stable [8]. C fr is calculated from a ratio of the force of friction between two bodies and the normal force pressing them together and their measurement as described previously [8,10].…”

Section: Methodsmentioning

confidence: 99%

“…Atomic force microscopy is an indispensable technique to study the various surface phenomena [4][5][6]. AFM allows not only to evaluate the roughness of the surface but also recognize the different localized phases and reveal the distribution of friction forces over the surface and evaluate the tribological characteristics of polymer materials in the micro-and nanoscale [6][7][8][9].…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Characterization of Multiblock (Segmented) Copolyurethane- Imides and Nanocomposites Based Thereof Using AFM, Nanotribology, and Nanoindentation Methods

Sukhanova¹,

Кузнецова²,

Lapitskaya³

et al. 2019

Atomic-Force Microscopy and Its Applications

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This chapter reviews our results on the morphology, tribological, and local mechanical property investigations of new copoly(urethane-imide)s (coPUIs) and nanocomposites based thereof using atomic force microscopy (AFM) and nanoindentation (NI) methods. AFM in the contact mode of lateral forces revealed the presence of different contrast phases on the surface of synthesized films which depends on the chemical structure of monomers used. Single-walled carbon nanotubes (SWCNTs), carbon nanofibers, graphene, tungsten disulfide and tungsten diselenide were introduced into coPUI matrices. Dependencies of microhardness and modulus of elasticity on the depth of indentation have been obtained. It was found that for each synthesized coPUI, there is only one type of carbon nanomaterials that exerts the greatest influence on their characteristics. The improvement of mechanical properties is found to mainly depend on the nature of the polymer matrix and filler. Our results showed that effective methods for improving of tribological characteristics can be either modification by SWCNTs (up to 1 wt.%) or heating at 30°C. Synthesized coPUI films and nanocomposites are very promising materials and can be used as thermoplastic elastomers for tribological applications, and their physical-mechanical properties can be controlled both by temperature and by mechanical action.

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Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Characterization of Multiblock (Segmented) Copolyurethane- Imides and Nanocomposites Based Thereof Using AFM, Nanotribology, and Nanoindentation Methods

Sukhanova¹,

Кузнецова²,

Lapitskaya³

et al. 2019

Atomic-Force Microscopy and Its Applications

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“…As shown in Figure 1, the tensile strength and compressive strength of NRTCPM are one order ofmagnitude, and the tensile strength has a much better performance than cement [22]. In terms of the mechanical and tribological properties, scanning electron microscope (SEM) [23] and the atomic force microscopy method (AFM) [24] have been applied to measure the mechanical and tribological properties of polymer and copoly. Gao Xiang et al (2017) applied SEM to test NRCPM specimens with different densities.…”

Section: Introductionmentioning

confidence: 99%

“…The higher the density of the specimen is, the more stable the microstructure is. Specimens with a lower density are polyhedrons, and their contact area is large [24]. Based on the mechanical properties and microstructure of NRTCPM, it has many advantages.To be specific, NRTCPM has a better waterproof performance and durability than traditional expansive polymer.…”

Section: Introductionmentioning

confidence: 99%

Seismic Isolation Effect of Non-Water Reacted Two-Component Polymeric Material Coating on Tunnels

Wang

Guo

et al. 2020

Applied Sciences

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An isolation layer is one of the countermeasures to promote the anti-seismic performance of tunnels. A newly invented polymeric material, non-water reacted two-component polymeric material (NRTCPM), is superior in impermeability and construction efficiency. In this study, covering a tunnel with NRTCPM coating to mitigate the damage caused by an earthquake is discussed, and an Impact Resonance Test (IRT) is firstly used to obtain the damping ratios and dynamic elastic modulus of NRTCPM. By using infinite element boundary, eight dynamic numerical modelsare made to study the isolation effects based on different density, Poisson’s ratio, dynamic elastic modulus and thickness of isolation layer values. Three different conditions are explored in this paper, namely (1) no NRTCPM layer coating around tunnel; (2) different densities, Poisson’s ratios and dynamic elastic moduli of a polymeric layer; and (3) various thicknesses of polymeric isolation layers around the lining. Tensile and compressive stresses are compared under these different conditions. The results show that retrofitting tunnel lining with this material has a good effect on seismic isolation. An optimum density and thickness of the NRTCPM layer is suggested considering cost and strength.

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“…Для улучшения магнитных и функциональных свойств BaFe 12 O 19 обычно используют замещение ионов железа изовалентными диамагнитны-ми ионами D 3+ (изовалентное замещение) [31][32][33][34] или гетеровалентными диамагнитными ионами D 4+ или D 2+ (гетеровалентное замещение). Диамагнитное замещение в BFO изменяет особенности кристаллической структу-ры (искажения элементарной ячейки, микродеформации и изменения длин связей Fe−O) и магнитную структуру (ослабление магнитного обменного взаимодействия и фрустрации магнитной структуры).…”

Section: Introductionunclassified

Мессбауэровские исследования и микроволновые свойства гексаферритов бария с замещением ионами Al-=SUP=-3+-=/SUP=- и In-=SUP=-3+-=/SUP=-

Труханов¹,

Костишин²,

Коровушкин³

et al. 2018

Физика Твердого Тела

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The correlation of the chemical composition, the structure, and the microwave characteristic of solid solutions of the BaFe_12 – x D_ x O_19 (0.1 ≤ x ≤ 1.2) barium hexaferrite substituted with diamagnetic Al^3+ and In^3+ ions has been studied. The precise data on the crystal structure have been obtained by powder neutron diffraction using a high-resolution Fourier diffractometer (Dubna, JINR). The data on the distribution of the diamagnetic substituting ions in the hexaferrite structure have been obtained by Mössbauer spectroscopy. The microwave properties (the transmittance and the reflectance) have been studied in the frequency range 20–65 GHz and in external magnetic fields to 8 kOe. It is found that the transmission spectra are characterized by a peak that corresponds to the resonant frequency of the electromagnetic energy absorption, which is due to the ferromagnetic resonance phenomenon. The correlation of the chemical composition, the features of the ion distribution in the structure, and the electromagnetic properties has been revealed. It is shown that external magnetic fields shift the absorption peak of electromagnetic radiation to higher frequencies due to an increase in the magnetocrystal anisotropy. The results enable the conclusion that the features of the intrasublattice interactions and the electromagnetic properties should be explained using the phenomenological Goodenough–Kanamori model.

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Tribological properties investigation of the thermoplastic elastomers surface with the AFM lateral forces mode

Cited by 26 publications

References 7 publications

Characterization of Multiblock (Segmented) Copolyurethane- Imides and Nanocomposites Based Thereof Using AFM, Nanotribology, and Nanoindentation Methods

Characterization of Multiblock (Segmented) Copolyurethane- Imides and Nanocomposites Based Thereof Using AFM, Nanotribology, and Nanoindentation Methods

Seismic Isolation Effect of Non-Water Reacted Two-Component Polymeric Material Coating on Tunnels

Мессбауэровские исследования и микроволновые свойства гексаферритов бария с замещением ионами Al-=SUP=-3+-=/SUP=- и In-=SUP=-3+-=/SUP=-

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