Rheological and Technological Aspects in Designing the Properties of Shear Thickening Fluids

This work focuses on shear thickening fluids (STFs) as ceramic–polymer composites with outstanding protective properties. The investigation aims to determine the influence of raw material parameters on the functional properties of STFs. The following analyses were used to characterize both the raw m...

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Autores principales:	Radosław Żurowski, Paweł Falkowski, Justyna Zygmuntowicz, Mikołaj Szafran
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	ceramic–polymer composites intelligent materials protective properties rheological properties shear thickening fluids Technology T Electrical engineering. Electronics. Nuclear engineering TK1-9971 Engineering (General). Civil engineering (General) TA1-2040 Microscopy QH201-278.5 Descriptive and experimental mechanics QC120-168.85
Acceso en línea:	https://doaj.org/article/8df8ad06319f49be98714590c9640d86
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spelling	oai:doaj.org-article:8df8ad06319f49be98714590c9640d862021-11-11T18:08:24ZRheological and Technological Aspects in Designing the Properties of Shear Thickening Fluids10.3390/ma142165851996-1944https://doaj.org/article/8df8ad06319f49be98714590c9640d862021-11-01T00:00:00Zhttps://www.mdpi.com/1996-1944/14/21/6585https://doaj.org/toc/1996-1944This work focuses on shear thickening fluids (STFs) as ceramic–polymer composites with outstanding protective properties. The investigation aims to determine the influence of raw material parameters on the functional properties of STFs. The following analyses were used to characterize both the raw materials and the STFs: scanning electron microscopy, dynamic light scattering, matrix-assisted laser desorption/ionization time-of-flight, chemical sorption analysis, rheological analysis, and kinetic energy dissipation tests. It was confirmed that the morphology of the solid particles plays a key role in designing the rheological and protective properties of STFs. In the case of irregular silica, shear thickening properties can be obtained from a solid content of 12.5 vol.%. For spherical silica, the limit for achieving shear thickening behavior is 40 vol.%. The viscosity curve analysis allowed for the introduction of a new parameter defining the functional properties of STFs: the technological critical shear rate. The ability of STFs to dissipate kinetic energy was determined using a unique device that allows pure fluids to be tested without prior encapsulation. Because of this, it was possible to observe even slight differences in the protective properties between different STFs, which has not been possible so far. During tests with an energy of 50 J, the dissipation factor was over 96%.Radosław ŻurowskiPaweł FalkowskiJustyna ZygmuntowiczMikołaj SzafranMDPI AGarticleceramic–polymer compositesintelligent materialsprotective propertiesrheological propertiesshear thickening fluidsTechnologyTElectrical engineering. Electronics. Nuclear engineeringTK1-9971Engineering (General). Civil engineering (General)TA1-2040MicroscopyQH201-278.5Descriptive and experimental mechanicsQC120-168.85ENMaterials, Vol 14, Iss 6585, p 6585 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	ceramic–polymer composites intelligent materials protective properties rheological properties shear thickening fluids Technology T Electrical engineering. Electronics. Nuclear engineering TK1-9971 Engineering (General). Civil engineering (General) TA1-2040 Microscopy QH201-278.5 Descriptive and experimental mechanics QC120-168.85
spellingShingle	ceramic–polymer composites intelligent materials protective properties rheological properties shear thickening fluids Technology T Electrical engineering. Electronics. Nuclear engineering TK1-9971 Engineering (General). Civil engineering (General) TA1-2040 Microscopy QH201-278.5 Descriptive and experimental mechanics QC120-168.85 Radosław Żurowski Paweł Falkowski Justyna Zygmuntowicz Mikołaj Szafran Rheological and Technological Aspects in Designing the Properties of Shear Thickening Fluids
description	This work focuses on shear thickening fluids (STFs) as ceramic–polymer composites with outstanding protective properties. The investigation aims to determine the influence of raw material parameters on the functional properties of STFs. The following analyses were used to characterize both the raw materials and the STFs: scanning electron microscopy, dynamic light scattering, matrix-assisted laser desorption/ionization time-of-flight, chemical sorption analysis, rheological analysis, and kinetic energy dissipation tests. It was confirmed that the morphology of the solid particles plays a key role in designing the rheological and protective properties of STFs. In the case of irregular silica, shear thickening properties can be obtained from a solid content of 12.5 vol.%. For spherical silica, the limit for achieving shear thickening behavior is 40 vol.%. The viscosity curve analysis allowed for the introduction of a new parameter defining the functional properties of STFs: the technological critical shear rate. The ability of STFs to dissipate kinetic energy was determined using a unique device that allows pure fluids to be tested without prior encapsulation. Because of this, it was possible to observe even slight differences in the protective properties between different STFs, which has not been possible so far. During tests with an energy of 50 J, the dissipation factor was over 96%.
format	article
author	Radosław Żurowski Paweł Falkowski Justyna Zygmuntowicz Mikołaj Szafran
author_facet	Radosław Żurowski Paweł Falkowski Justyna Zygmuntowicz Mikołaj Szafran
author_sort	Radosław Żurowski
title	Rheological and Technological Aspects in Designing the Properties of Shear Thickening Fluids
title_short	Rheological and Technological Aspects in Designing the Properties of Shear Thickening Fluids
title_full	Rheological and Technological Aspects in Designing the Properties of Shear Thickening Fluids
title_fullStr	Rheological and Technological Aspects in Designing the Properties of Shear Thickening Fluids
title_full_unstemmed	Rheological and Technological Aspects in Designing the Properties of Shear Thickening Fluids
title_sort	rheological and technological aspects in designing the properties of shear thickening fluids
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/8df8ad06319f49be98714590c9640d86
work_keys_str_mv	AT radosławzurowski rheologicalandtechnologicalaspectsindesigningthepropertiesofshearthickeningfluids AT pawełfalkowski rheologicalandtechnologicalaspectsindesigningthepropertiesofshearthickeningfluids AT justynazygmuntowicz rheologicalandtechnologicalaspectsindesigningthepropertiesofshearthickeningfluids AT mikołajszafran rheologicalandtechnologicalaspectsindesigningthepropertiesofshearthickeningfluids
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Rheological and Technological Aspects in Designing the Properties of Shear Thickening Fluids

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