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A Model of a “Smart” Thermoresponsive Composite with Convertible Surface Geometry Controlled by the Magnetocaloric Effectстатья
- Авторы: Amirov A.A., Koliushenkov M.A., Yusupov D.M., Murliev E.K., Chirkova A.M., Kamantsev A.P.
- Журнал: Journal of Composites Science
- Том: 9
- Номер: 3
- Год издания: 2025
- Издательство: MDPI
- Местоположение издательства: Basel, Switzerland
- Первая страница: 97
- DOI: 10.3390/jcs9030097
- Аннотация: A model of a “smart” composite based on a thermosensitive PNIPAM polymer deposited on a FeRh substrate with a modified periodic microstructure was proposed. The initial parameters of the model were determined from the properties of the actual composite sample and its components. Cooling of the sample using a magnetic field was shown by two independent methods, and at ~37 °C, it was −5.5 °C when a magnetic field of 1.8 T was applied. Based on experimental data, models of traditional and modified PNIPAM/FeRh composites were constructed. Calculations show that surface modification allows for an increase in the activation time for a polymer layer that is 20 µm thick from ~20 ms for a conventional composite to ~60 ms for a modified composite. Modification of the surface in the form of wells can be used to more effectively implement the idea of loading and releasing drugs for potential biomedical applications.
- Добавил в систему: Колюшенков Максим Андреевич