Microgel particle deposition patterns after impinging on nanofiber-based coatings

Microgel particle deposition patterns after impinging on nanofiber-based coatings

Bibliographic Details
Parent link:Physics of Fluids.— .— New York: AIP Publishing
Vol. 36, iss. 1.— 2024.— 013119, 14 p.
Main Author: Piskunova A. E. Aleksandra Evgenjevna
Corporate Author: Национальный исследовательский Томский политехнический университет Инженерная школа энергетики Научно-образовательный центр И. Н. Бутакова (НОЦ И. Н. Бутакова)
Other Authors: Khomutov N. A. Nikita Andreevich, Piskunov M. V. Maksim Vladimirovich
Summary:Title screen
The study focuses on predicting the hydrodynamics of sodium alginate-based microgel “liquid core–gel shell” particles for droplet-based bioprinting. Hydrophobic polytetrafluoroethylene nanofiber-based coating (NBC #1) and hydrophilic polycaprolactone–polyvinylpyrrolidone NBC #2 are manufactured to serve as the basis for microgel deposition. An approach is proposed to model the flow of a Maxwell gel-like liquid with different fluidity, surface tension, and initial velocity along an inhomogeneous interface after microgel particle–NBC collision. Wetting and anti-wetting pressure differences allow estimating liquid impalement into NBCs at We = 10–50. For NBC #2, the initial particle velocity plays mainly a decisive role in predicting the contact diameter and height at maximum spreading and receding. For NBC #1, the pinning is considered by introducing the complex parameter resolving particle inertia, microgel rheology and surface tension, and NBC characteristics. The flow along the porous interface physically correlates with the extended Freundlich model, explaining the surface inhomogeneity caused by multilayer adsorption.
Текстовый файл
AM_Agreement
Language:English
Published: 2024
Subjects:
электронный ресурс
труды учёных ТПУ
Online Access:https://doi.org/10.1063/5.0185711
Format: Electronic Book Chapter
KOHA link:https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=670964

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