Theimpactoforganictanlonfiberonperformanceindicators of polychlorotrifluoroethylene

Burya, A. I.; Калиниченко, С. В.; Томина, А.-М. В.; Nachovniy, I.I.

doi:10.31891/2079-1372-2019-92-2-61-66

Cited by 2 publications

(4 citation statements)

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“…8) times in the contact zone between the counter body and the sample is probably [15] due to an increase in the thermal conductivity of the CP, which provides heat removal from the friction zone. In general, the improvement of the tribotechnical characteristics of the original polymer can be explained by the fact that, in the process of friction on the steel counter-friction transfer, film is formed, resulting in friction occurring according to the 'polymer-polymer' scheme [12].…”

Section: Parametermentioning

confidence: 99%

“…However, low wear resistance hinders its widespread use in tribological compounds. It is known from the literature [12,13] that low-and high-modulus CF improve the tribological properties of aliphatic and aromatic polyamides, because of which the developed PCM is actively used in the agricultural, metallurgical and automotive industries instead of serial materials.…”

Section: Introductionmentioning

confidence: 99%

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Influence of Carbon Fibres on Properties of Composites Based on Sulfaryl-BSP-7 Copolymer

2023

Nanosistemi, Nanomateriali, Nanotehnologii

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БСП-7, вуглецеві волокна, композити БСП-7/ВВ, -демонструють наявність парамагнетних сиґналів, характеристики яких визначено зі спектрів електронного парамагнетного резонансу (ЕПР), в тому числі виявлено роль взаємодії матриці з наповнювачами. Форма спектру ЕПР ВВ Урал визначається електронами провідности в залежності від співвідношення товщини зразка та товщини скін-шару для мікрохвиль. Ізотропність ЕПР-спектрів досліджених ВВ встановлює їхню природу як карбонізованих матеріялів. ВВ Углен мають значну питому поверхню, що приводить до сильного (в  25 разів) розширення лінії ЕПР завдяки взаємодії електронних спінів Углену зі спінами молекулярного кисню повітря. Технологія синтези композитів, яка включає магнетне перемішування компонентів, приводить до появи сиґналів феромагнетного (ФМ) та суперпарамагнетного вбирання у БСП-7/Урал і БСП-7/Углен. Магнетно-резонансні характеристики композитів залежать від пористости зразків, природи та концентрації наповнювачів і ФМдомішок. Трибологічні дослідження показали, що додавання волокон Углен-9 і Урал-Н-24/320 в БСП-7 приводить до значного позитивного ефекту: зменшення коефіцієнта тертя, інтенсивности лінійного зношування та тепловиділення по відновлювальній поверхні вихідного полімера у 1,

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Section: Parametermentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Influence of Carbon Fibres on Properties of Composites Based on Sulfaryl-BSP-7 Copolymer

2023

Nanosistemi, Nanomateriali, Nanotehnologii

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“…Discrete BF (Research Institute of Fiberglass and Fibers PJSC (NDISV in Ukrainian), Ukraine) was chosen as filler for PTFE. BF was produced using compression moulding according to the method given in the paper [3].…”

Section: Technique For Researching the Properties Of Compositesmentioning

confidence: 99%

“…Using fluoropolymer composite materials (FPCM) allows us to solve this problem and obtain a number of advantages. Thus, sliding [3] and rolling bearings (like anti-friction protection) [4], as well as piston and seal rings [5] made of FPCM, made it possible to increase the service life of the friction units of KINZE-7600 seeding-machine and sintering pallet cars, piston compressors of SO-7B and 4GМ 2,5 U-3,4/2,8-251 2,5 times on average. The effectiveness of using these FPCM consists in the complete rejection of lubricants, increased wear resistance, reduced coefficients of friction and linear expansion, the number of planned preventive maintenances and equipment downtime.…”

Section: Introductionmentioning

confidence: 99%

Effect of discrete basalt fiber on operational properties of polytetrafluoroethylene

Yeromenko

Томина

Рула

2022

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The article examines the effect of discrete basalt fibers on the tribotechnical characteristics of DF-101 polytetrafluoroethylene according to the “disk-pad” scheme under conditions of friction without lubrication. It was established that the introduction of filler leads to decrease in the intensity of wear and the coefficient of friction of the base polymer 1,7 and 360 times, respectively. The improvement of these properties occurs because “anti-friction layer” that is more stable compared to unfilled polytetrafluoroethylene is formed in the process of friction of basalt plastics. As a result, friction occurs according to the “polymer-polymer” scheme. This is confirmed by a profound change in the morphology of the friction surface. For example, deep ploughing furrows and traces of adhesion with the counterbody are observed for polytetrafluoroethylene, while basalt plastics are more resistant to deformations, which, in turn, leads to a reduction of ploughing furrows. A sharp decrease in wear resistance 1,35-3,3 times is observed for basalt plastics containing 30-40 mass.% of fiber. It is probably a consequence of the growth of defects in the volume of the material due to the uneven location of the fiber in the polymer matrix. The confirmation of the presence of defects in the volume of basalt plastics is confirmed by a comparison of the calculated and experimental (hydrostatic) density. It was found that polytetrafluoroethylene loses 10% of its mass at a temperature of 823K, while the temperature of losing 10% of mass increases by 10 degrees for basalt plastic. It was determined that the effective content of the filler in the polymer matrix is 20 mass.%. The obtained basalt plastic (20 mass.% fiber) is recommended in manufacturing rolling and sliding bearings (as anti-friction protection) for tribological units of modern technology operating under the influence of high temperatures, aggressive environments and friction conditions without lubrication.

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Theimpactoforganictanlonfiberonperformanceindicators of polychlorotrifluoroethylene

Cited by 2 publications

References 0 publications

Influence of Carbon Fibres on Properties of Composites Based on Sulfaryl-BSP-7 Copolymer

Influence of Carbon Fibres on Properties of Composites Based on Sulfaryl-BSP-7 Copolymer

Effect of discrete basalt fiber on operational properties of polytetrafluoroethylene

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