{"title":"粉煤灰/硅基剪切增稠流体的流变特性和内在机理","authors":"Li Sun, Geng Wang, Chunwei Zhang, Tianqi Liang","doi":"10.1007/s00397-024-01459-7","DOIUrl":null,"url":null,"abstract":"<div><p>We have found that the unique particle properties of fly ash can be applied to the modification of shear thickening fluid. In this paper, rheological properties and microscopic thickening mechanism of fly ash/silicon-based shear thickening fluid (subsequently abbreviated as FA/SiO<sub>2</sub>-STF) are studied. Ultrasonic technology and mechanical stirring method were used to prepare FA/SiO<sub>2</sub>-STF with different mass fractions of fly ash, and then rheometer was used to carry out steady-state rheological testing for FA/SiO<sub>2</sub>-STF, and 4%FA/SiO<sub>2</sub>-STF dynamic rheological test and temperature sensitivity testing, respectively. The thickening mechanism of FA/SiO<sub>2</sub>-STF was analyzed by scanning electron microscope. The rheological test results show that the FA/SiO<sub>2</sub>-STF with 4% fly ash content exhibits remarkable shear thickening effect. Finally, the relationship between the viscosity and shear rate of FA/SiO<sub>2</sub>-STF is numerically described by a mathematical model, which can accurately reflect the viscosity thickening effect.</p></div>","PeriodicalId":755,"journal":{"name":"Rheologica Acta","volume":null,"pages":null},"PeriodicalIF":2.3000,"publicationDate":"2024-06-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Rheological properties and the intrinsic mechanisms of fly ash/silicon-based shear thickening fluid\",\"authors\":\"Li Sun, Geng Wang, Chunwei Zhang, Tianqi Liang\",\"doi\":\"10.1007/s00397-024-01459-7\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>We have found that the unique particle properties of fly ash can be applied to the modification of shear thickening fluid. In this paper, rheological properties and microscopic thickening mechanism of fly ash/silicon-based shear thickening fluid (subsequently abbreviated as FA/SiO<sub>2</sub>-STF) are studied. Ultrasonic technology and mechanical stirring method were used to prepare FA/SiO<sub>2</sub>-STF with different mass fractions of fly ash, and then rheometer was used to carry out steady-state rheological testing for FA/SiO<sub>2</sub>-STF, and 4%FA/SiO<sub>2</sub>-STF dynamic rheological test and temperature sensitivity testing, respectively. The thickening mechanism of FA/SiO<sub>2</sub>-STF was analyzed by scanning electron microscope. The rheological test results show that the FA/SiO<sub>2</sub>-STF with 4% fly ash content exhibits remarkable shear thickening effect. Finally, the relationship between the viscosity and shear rate of FA/SiO<sub>2</sub>-STF is numerically described by a mathematical model, which can accurately reflect the viscosity thickening effect.</p></div>\",\"PeriodicalId\":755,\"journal\":{\"name\":\"Rheologica Acta\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":2.3000,\"publicationDate\":\"2024-06-18\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Rheologica Acta\",\"FirstCategoryId\":\"5\",\"ListUrlMain\":\"https://link.springer.com/article/10.1007/s00397-024-01459-7\",\"RegionNum\":3,\"RegionCategory\":\"工程技术\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"MECHANICS\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Rheologica Acta","FirstCategoryId":"5","ListUrlMain":"https://link.springer.com/article/10.1007/s00397-024-01459-7","RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"MECHANICS","Score":null,"Total":0}
Rheological properties and the intrinsic mechanisms of fly ash/silicon-based shear thickening fluid
We have found that the unique particle properties of fly ash can be applied to the modification of shear thickening fluid. In this paper, rheological properties and microscopic thickening mechanism of fly ash/silicon-based shear thickening fluid (subsequently abbreviated as FA/SiO2-STF) are studied. Ultrasonic technology and mechanical stirring method were used to prepare FA/SiO2-STF with different mass fractions of fly ash, and then rheometer was used to carry out steady-state rheological testing for FA/SiO2-STF, and 4%FA/SiO2-STF dynamic rheological test and temperature sensitivity testing, respectively. The thickening mechanism of FA/SiO2-STF was analyzed by scanning electron microscope. The rheological test results show that the FA/SiO2-STF with 4% fly ash content exhibits remarkable shear thickening effect. Finally, the relationship between the viscosity and shear rate of FA/SiO2-STF is numerically described by a mathematical model, which can accurately reflect the viscosity thickening effect.
期刊介绍：
"Rheologica Acta is the official journal of The European Society of Rheology. The aim of the journal is to advance the science of rheology, by publishing high quality peer reviewed articles, invited reviews and peer reviewed short communications.
The Scope of Rheologica Acta includes:
- Advances in rheometrical and rheo-physical techniques, rheo-optics, microrheology
- Rheology of soft matter systems, including polymer melts and solutions, colloidal dispersions, cement, ceramics, glasses, gels, emulsions, surfactant systems, liquid crystals, biomaterials and food.
- Rheology of Solids, chemo-rheology
- Electro and magnetorheology
- Theory of rheology
- Non-Newtonian fluid mechanics, complex fluids in microfluidic devices and flow instabilities
- Interfacial rheology
Rheologica Acta aims to publish papers which represent a substantial advance in the field, mere data reports or incremental work will not be considered. Priority will be given to papers that are methodological in nature and are beneficial to a wide range of material classes. It should also be noted that the list of topics given above is meant to be representative, not exhaustive. The editors welcome feedback on the journal and suggestions for reviews and comments."
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