КФУ. Карточка публикации. Determination of Sessile Drop Wetting Angle Based on μCT without the Direct Angle Measurement

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DETERMINATION OF SESSILE DROP WETTING ANGLE BASED ON μCT WITHOUT THE DIRECT ANGLE MEASUREMENT

Форма представления

Статьи в зарубежных журналах и сборниках

Год публикации

2023

Язык

русский

Авторы, сотрудники КФУ

Кадыров Раиль Илгизарович, автор

Мухаматдинов Ирек Изаилович, автор

Стаценко Евгений Олегович, автор

Библиографическое описание на языке оригинала

Kadyrov R. et al. Determination of Sessile Drop Wetting Angle Based on μCT without the Direct Angle Measurement / Kadyrov, Rail, Mukhamatdinov, Irek, Statsenko, Evgeny // Langmuir. -. American Chemical Society, 2023. -. Vol. 39, No. 8. P. 2966–2973

Аннотация

Wettability is an important factor that controls the position and transport of fluids in the porous structure of a hydrocarbon reservoir. Direct quantitative wettability measurement methods include determination of the contact angle. One of the popular laboratory methods for its measurement is the sessile drop method, where the droplet of liquid is set onto the solid sample surface and the angle between liquid and solid phases in a 2D profile image is measured using a high-resolution optical subsystem. However, this method has disadvantages connected with three complex factors: two-dimensionality of data, image resolution, and the presence of wetting domains on the solid surface. In this work, we propose a method based on 3D μCT scanning of a sessile drop on the surface of a material and determination of the value of the wetting angle using drop height and volume measurements. Since the contact angle is not measured directly, this makes it possible to obtain averaged contact angle values for the entire droplet and leads to more stable values for individual measurements in comparison with the standard optical method. The results demonstrate that contact angles obtained using the μCT method differ from the values obtained by various fitting techniques of the 2D optical method: μCT-values are higher for hydrophilic interaction by 4-6? and lower for hydrophobic interaction by 12-17?. Such differences are associated with the lower susceptibility of the proposed method to the influence of the gravitational effect, which leads to a flattening of the droplet shape and distortion of angle measurements on the 2D projections. However, the described method showed close contact angles for water drops on a polytetrafluoroethylene surface with values obtained in microgravity and can be helpful for its prediction. It also has relatively low sensitivity to the absolute values of the drop volume and drop segmentation errors.

Ключевые слова

Amorphous materials, Contact angle, Liquids, Materials, Wetting

Название журнала

LANGMUIR

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https://repository.kpfu.ru/?p_id=298061

Полная запись метаданных

Поле DC	Значение	Язык
dc.contributor.author	Кадыров Раиль Илгизарович	ru_RU
dc.contributor.author	Мухаматдинов Ирек Изаилович	ru_RU
dc.contributor.author	Стаценко Евгений Олегович	ru_RU
dc.date.accessioned	2023-01-01T00:00:00Z	ru_RU
dc.date.available	2023-01-01T00:00:00Z	ru_RU
dc.date.issued	2023	ru_RU
dc.identifier.citation	Kadyrov R. et al. Determination of Sessile Drop Wetting Angle Based on μCT without the Direct Angle Measurement / Kadyrov, Rail, Mukhamatdinov, Irek, Statsenko, Evgeny // Langmuir. -. American Chemical Society, 2023. -. Vol. 39, No. 8. P. 2966–2973	ru_RU
dc.identifier.uri	https://repository.kpfu.ru/?p_id=298061	ru_RU
dc.description.abstract	LANGMUIR	ru_RU
dc.description.abstract	Wettability is an important factor that controls the position and transport of fluids in the porous structure of a hydrocarbon reservoir. Direct quantitative wettability measurement methods include determination of the contact angle. One of the popular laboratory methods for its measurement is the sessile drop method, where the droplet of liquid is set onto the solid sample surface and the angle between liquid and solid phases in a 2D profile image is measured using a high-resolution optical subsystem. However, this method has disadvantages connected with three complex factors: two-dimensionality of data, image resolution, and the presence of wetting domains on the solid surface. In this work, we propose a method based on 3D μCT scanning of a sessile drop on the surface of a material and determination of the value of the wetting angle using drop height and volume measurements. Since the contact angle is not measured directly, this makes it possible to obtain averaged contact angle values for the entire droplet and leads to more stable values for individual measurements in comparison with the standard optical method. The results demonstrate that contact angles obtained using the μCT method differ from the values obtained by various fitting techniques of the 2D optical method: μCT-values are higher for hydrophilic interaction by 4-6? and lower for hydrophobic interaction by 12-17?. Such differences are associated with the lower susceptibility of the proposed method to the influence of the gravitational effect, which leads to a flattening of the droplet shape and distortion of angle measurements on the 2D projections. However, the described method showed close contact angles for water drops on a polytetrafluoroethylene surface with values obtained in microgravity and can be helpful for its prediction. It also has relatively low sensitivity to the absolute values of the drop volume and drop segmentation errors.	ru_RU
dc.language.iso	ru	ru_RU
dc.subject	Amorphous materials	ru_RU
dc.subject	Contact angle	ru_RU
dc.subject	Liquids	ru_RU
dc.subject	Materials	ru_RU
dc.subject	Wetting	ru_RU
dc.title	Determination of Sessile Drop Wetting Angle Based on μCT without the Direct Angle Measurement	ru_RU
dc.type	Статьи в зарубежных журналах и сборниках	ru_RU