Deposition features and wettability behavior of fluoropolymer coatings from hexafluoropropylene oxide activated by NiCr wire

Сафонов, А. И.; Sulyaeva, V. S.; Gatapova, Elizaveta Ya.; Starinskiy, S. V.; Тимошенко, Н. И.; Kabov, Oleg

doi:10.1016/j.tsf.2018.03.015

Cited by 31 publications

(26 citation statements)

References 29 publications

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“…The spray cooling curve has been observed by many researchers to be quite linear at low superheats, indicating that single-phase convection is the primary heat transfer mechanism. Pautsch and Shedd [8] verified this using a novel technique to measure the local film thickness produced by sprays.…”

Section: Introductionmentioning

confidence: 80%

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Heat transfer during drop impact on a heated foil

Ponomarenko

Сафонов

2019

EPJ Web Conf.

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Section: Introductionmentioning

confidence: 80%

“…Our foil was coated with thin fluoropolymer film by HWCVD method. The method and experimental setup were described in [8]. The thickness of film is 100 nm.…”

Section: Methodsmentioning

confidence: 99%

Heat transfer during drop impact on a heated foil

Ponomarenko

Сафонов

2019

EPJ Web Conf.

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“…Поток активируемого газа движется к поверхности образца, где происходит осаждение покрытия путем полимеризации активных частиц. Изменение параметров процесса осаждения приводит к изменению поверхностного строения покрытия [13]. В настоящей работе было использовано вращение цилиндрического образца во время процесса осаждения, что позволило избежать неравномерности толщины покрытия, характерной для осаждения из газовой фазы [14].…”

Section: поступило в редакцию 29 июля 2020 г в окончательной редакциunclassified

“…Экспериментальная установка и схема метода HW CVD подробно представлены в работе [13]. В вакуумной камере установки был размещен механизм, позволяющий вращать цилиндрические образцы малого диаметра (трубки, стержни).…”

Section: поступило в редакцию 29 июля 2020 г в окончательной редакциunclassified

Осаждение Фторполимерных Покрытий На Вращающиеся Цилиндрические Поверхности Методом Химического Осаждения Из Газовой Фазы, Активированной Горячей Нитью

Сафонов¹,

Старинский²,

Суляева³

2021

Письма В Журнал Технической Физики

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The Hot Wire Chemical Vapor Deposition method has been adapted to deposit fluoropolymer coatings onto rotating cylindrical surfaces with a small radius (less than 20 mm). The effect of the surface rotation frequency on the structure of a thin fluoropolymer coating deposited on it has been investigated. A significant change in the morphology of the formed fluoropolymer coating was found depending on the rotational frequency of the cylindrical surface. One more parameter has been established that makes it possible to change the structure of the formed fluoropolymer coating during the deposition process.

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“…The thickness of the films in different modes was varied by changing the deposition time. Detailed description of HWCVD method can be found in [10]. After the synthesis, the physico-chemical properties of each sample were analyzed using a complex of methods, including nanoprofiometry, electronic spectroscopy and microscopy (EDX, SEM), and KRUSS setup for measuring free surface energy and contact angle.…”

Section: Surface Modificationmentioning

confidence: 99%

Characteristics of Boiling Heat Transfer on Hydrophobic Surface

2019

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The paper presents the results of an experimental study of the effect of hydrophobic fluoropolymer coating on the multiscale characteristics of heat transfer at water boiling. New experimental data on dynamics of vapor bubble growth and detachment, evolution of contact line, nucleation site density, heat transfer coefficient were obtained using high-speed imaging techniques, including infrared thermography and video recording from the bottom side of transparent ITO heater. It was shown, that the using of hydrophobic fluoropolymer coating leads to heat transfer enhancement, to decrease of the superheat temperature at the onset of boiling, to increase of the active nucleation site density and to significant change in the dynamics of growth and departure of vapor bubbles and the evolution of the triple contact line.

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Deposition features and wettability behavior of fluoropolymer coatings from hexafluoropropylene oxide activated by NiCr wire

Cited by 31 publications

References 29 publications

Heat transfer during drop impact on a heated foil

Heat transfer during drop impact on a heated foil

Осаждение Фторполимерных Покрытий На Вращающиеся Цилиндрические Поверхности Методом Химического Осаждения Из Газовой Фазы, Активированной Горячей Нитью

Characteristics of Boiling Heat Transfer on Hydrophobic Surface

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