Modification of Materials by Carbon Nanoparticles

Shpilevsky, E. M.; Penyazkov, O. G.; Филатов, С. А.; Shilagardi, G.; Tuvshintur, P.; Timur-Bаtor, D.; Duger, Ulam-Orgikh

doi:10.4028/www.scientific.net/ssp.271.70

Cited by 7 publications

(9 citation statements)

References 4 publications

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“…The use of promising methods makes it possible to identify crystalline and partially crystalline polymeric m was a challenging task until now [19].…”

Section: Resultsmentioning

confidence: 99%

Investigation of polymer interaction with nanoscale modifier and development of its identification algorithm

Gudkov¹,

Глотова²,

Шахов³

et al. 2018

Proceedings of the International Conference "Actual Issues of Mechanical Engineering" (AIME 2018)

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The purpose of the work is to substantiate the mechanism of interaction of a mixture of fullerene fractions С 50÷92 with the polymer matrix of natural and synthetic rubbers with the subsequent solution of the task of identifying their compliance with specified technological parameters in terms of the content of a nanoscale component. The authors make a study of an industrial brand of synthetic butadiene rubber: SBR-Nd and SBR-Ti, according to synthesize on neodymium and titanic catalysts such as natural rubber grade NR RSS1. As a modifier of the polymer matrix, a mixture of fullerenes of fraction C 50 -C 92 was used in the following ratio: C 50 -C 58 (14.69%), C 60 (63.12%), C 62 -C 68 (5.88%), C 70 (13.25%), C 72 -C 92 (3.06%). When processing the spectra, we used: autofiltration of the signal by a running spectral window, automatic correction of the baseline, complicated ATR correction for the depth of penetration into the film material. It is revealed that the nature of the interaction of a mixture of fullerenes with rubbers is determined by the uncertainty and chemical nature of the elastomer and does not depend on the nature and activity of the filler. An algorithm is developed for the identification of diene rubbers modified with a mixture of fullerenes. Practical approbation of the algorithm on the example of identification of a mixture of C 50 -C 92 fullerenes in polymer matrices of various chemical nature is carried out based on the IR spectroscopy method. The accuracy of identification was 97-98%.

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“…The use of promising methods makes it possible to identify crystalline and partially crystalline polymeric m was a challenging task until now [19].…”

Section: Resultsmentioning

confidence: 99%

Investigation of polymer interaction with nanoscale modifier and development of its identification algorithm

Gudkov¹,

Глотова²,

Шахов³

et al. 2018

Proceedings of the International Conference "Actual Issues of Mechanical Engineering" (AIME 2018)

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“…Metal-fullerene materials improve a wide range of physical and physico-chemical properties. The addition of fullerenes to the materials, even in small amounts (up to 1.0% by weight), significantly changes the properties of the original material [ 75 ]. These composites are mostly used to produce active elements for sensors, in the field of nano- and micromechanics, or for coatings, and not only in the area of biomedical applications [ 76 ].…”

Section: Carbon Nanostructures and Their Compositesmentioning

confidence: 99%

Carbon Nanostructures, Nanolayers, and Their Composites

2021

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The versatility of the arrangement of C atoms with the formation of different allotropes and phases has led to the discovery of several new structures with unique properties. Carbon nanomaterials are currently very attractive nanomaterials due to their unique physical, chemical, and biological properties. One of these is the development of superconductivity, for example, in graphite intercalated superconductors, single-walled carbon nanotubes, B-doped diamond, etc. Not only various forms of carbon materials but also carbon-related materials have aroused extraordinary theoretical and experimental interest. Hybrid carbon materials are good candidates for high current densities at low applied electric fields due to their negative electron affinity. The right combination of two different nanostructures, CNF or carbon nanotubes and nanoparticles, has led to some very interesting sensors with applications in electrochemical biosensors, biomolecules, and pharmaceutical compounds. Carbon materials have a number of unique properties. In order to increase their potential application and applicability in different industries and under different conditions, they are often combined with other types of material (most often polymers or metals). The resulting composite materials have significantly improved properties.

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“…The most well-known examples include carbon nanotubes and graphene. Carbon nanoparticles (CNPs) are emerging as a nanomaterial with several interesting properties, which encourages their use in several sectors, such as medicine, sensors, optoelectronics, and energy storage [25][26][27][28][29]. CNPs can be synthesized in flames.…”

Section: Introductionmentioning

confidence: 99%

Analysis of Carbon Nanoparticle Coatings via Wettability

Griffo,

Di Natale,

Minale

et al. 2024

Nanomaterials

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Wettability, typically estimated through the contact angle, is a fundamental property of surfaces with wide-ranging implications in both daily life and industrial processes. Recent scientific interest has been paid to the surfaces exhibiting extreme wettability: superhydrophobic and superhydrophilic surfaces, characterized by high water repellency and exceptional water wetting, respectively. Both chemical composition and morphology play a role in the determination of the wettability “performance” of a surface. To tune surface-wetting properties, we considered coatings of carbon nanoparticles (CNPs) in this study. They are a new class of nanomaterials synthesized in flames whose chemistry, dimension, and shape depend on combustion conditions. For the first time, we systematically studied the wettability of CNP coatings produced in a controlled rich ethylene/air flame stabilized over a McKenna burner. A selected substrate was intermittently inserted in the flame at 15 mm above the burner to form a thin coating thanks to a thermophoretic-driven deposition mechanism. The chemical-physical quality and the deposed quantity of the CNPs were varied by opportunely combing the substrate flame insertion number (from 1 to 256) and the carbon-to-oxygen ratio, C/O (from 0.67 to 0.87). The wettability of the coatings was evaluated by measuring the contact angle, CA, with the sessile drop method. When the C/O = 0.67, the CNPs were nearly spherical, smaller than 8 nm, and always generated hydrophilic coatings (CA < 35°). At higher C/O ratios, the CNPs reached dimensions of 100 nm, and fractal shape aggregates were formed. In this case, either hydrophilic (CA < 76°) or superhydrophobic (CA ~166°) behavior was observed, depending on the number of carbon nanoparticles deposed, i.e., film thickness. It is known that wettability is susceptible to liquid surface tension, and therefore, tests were conducted with different fluids to establish a correlation between the flame conditions and the nanostructure of the film. This method offers a fast and simple approach to determining mesoscale information for coating roughness and topographical homogeneity/inhomogeneity of their surfaces.

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Modification of Materials by Carbon Nanoparticles

Cited by 7 publications

References 4 publications

Investigation of polymer interaction with nanoscale modifier and development of its identification algorithm

Investigation of polymer interaction with nanoscale modifier and development of its identification algorithm

Carbon Nanostructures, Nanolayers, and Their Composites

Analysis of Carbon Nanoparticle Coatings via Wettability

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