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Gauthier A, Ovarlez G, Colin A. Shear thickening in presence of adhesive contact forces: The singularity of cornstarch. J Colloid Interface Sci 2023; 650:1105-1112. [PMID: 37467639 DOI: 10.1016/j.jcis.2023.07.017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2023] [Revised: 06/30/2023] [Accepted: 07/04/2023] [Indexed: 07/21/2023]
Abstract
HYPOTHESIS A number of dense particle suspensions experience a dramatic increase in viscosity with the shear stress, up to a solid-like response. This shear-thickening process is understood as a transition under flow of the nature of the contacts - from lubricated to frictional - between initially repellent particles. Most systems are now assumed to fit in with this scenario, which is questionable. EXPERIMENT Using an in-house pressure sensor array, we provide a spatio-temporal map of the normal stresses in the flows of two shear-thickening fluids: a stabilized calcium carbonate suspension, known to fit in with the standard scenario, and a cornstarch suspension, which spectacular thickening behavior remains poorly understood. FINDINGS We evidence in cornstarch a unique, stable heterogeneous structure, which moves in the velocity direction and does not appear in calcium carbonate. Its nature changes from a stress wave to a rolling solid jammed aggregate at high solid fraction and small gap width. The modeling of these heterogenities points to an adhesive force between cornstarch particles at high stress, also evidenced in microscopic measurements. Cornstarch being also attractive at low stress, it stands out of the classical shear-thickening frame, and might be part of a larger family of adhesive and attractive shear-thickening fluids.
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Affiliation(s)
- Anaïs Gauthier
- MIE - Chemistry, Biology and Innovation (CBI) UMR 8231, ESPCI Paris, CNRS, PSL Research University, 10 rue Vauquelin, Paris, France.
| | | | - Annie Colin
- MIE - Chemistry, Biology and Innovation (CBI) UMR 8231, ESPCI Paris, CNRS, PSL Research University, 10 rue Vauquelin, Paris, France
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Vibration Characteristics of Shear Thickening Fluid-Based Sandwich Structures. ADVANCES IN POLYMER TECHNOLOGY 2022. [DOI: 10.1155/2022/6959485] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
The vibration attenuation mechanism of shear thickening fluid- (STF-) filled sandwich structures was investigated in this study. Structural equivalent damping, stiffness, and mass increased simultaneously with the increase in the volume fraction of shear thickening fluid. However, the damping ratio decreased and natural frequency increased with the increase in structural mass. Thus, the damping ratio was not a monotonically increasing function of the volume fraction of STF. A modified shear strain model of the damping layer was developed based on the following conditions: (1) under the condition of small strain, shear thickening fluid was regarded as linear viscoelastic material, and (2) the warpage of the sandwich beam was considered during deformation and the influence of STF on the shear strain of sandwich beam. According to the modified shear strain model of the damping layer, the shear thickening occurred at 1 Hz to 20 Hz during vibration. Therefore, the resonance point of the structure shifted to the left. The predictions were in excellent agreement with the experimental results. The results demonstrated that shear thickening fluid improved the vibration damping performance of the sandwich structure, while the thickening ability was not the higher, the better.
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Küçüksönmez E, Servantie J. Shear thinning and thickening in dispersions of spherical nanoparticles. Phys Rev E 2020; 102:012604. [PMID: 32794894 DOI: 10.1103/physreve.102.012604] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2020] [Accepted: 06/19/2020] [Indexed: 11/07/2022]
Abstract
We present a molecular dynamics study of the flow of rigid spherical nanoparticles in a simple fluid. We evaluate the viscosity of the dispersion as a function of shear rate and nanoparticle volume fraction. We observe shear-thinning behavior at low volume fractions; as the shear rate increases, the shear forces overcome the Brownian forces, resulting in more frequent and more violent collisions between the nanoparticles. This in turn results in more dissipation. We show that in order to be in the shear-thinning regime the nanoparticles have to order themselves into layers longitudinal to the flow to minimize the collisions. As the nanoparticle volume fraction increases there is less room to form the ordered layers; consequently as the shear rate increases the nanoparticles collide more, which results in turn in shear thickening. Most interestingly, we show that at intermediate volume fractions the system exhibits metastability, with successions of ordered and disordered states along the same trajectory. Our results suggest that for nanoparticles in a simple fluid the hydroclustering phenomenon is not present; instead the order-disorder transition is the leading mechanism for the transition from shear thinning to shear thickening.
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Affiliation(s)
- E Küçüksönmez
- Department of Physics, Istanbul Technical University, Maslak 34469, Istanbul, Turkey
| | - J Servantie
- Department of Physics, Istanbul Technical University, Maslak 34469, Istanbul, Turkey
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Wei M, Lv Y, Sun L, Sun H. Rheological properties of multi-walled carbon nanotubes/silica shear thickening fluid suspensions. Colloid Polym Sci 2020. [DOI: 10.1007/s00396-020-04599-3] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Enhanced shear thickening of polystyrene-poly(acrylamide) and polystyrene-poly(HEMA) particles. Colloid Polym Sci 2019. [DOI: 10.1007/s00396-018-4445-1] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Chen Y, Zeng G, Liu W. The effect of surface grafting polymer chains on the shear thickening of hard microsphere suspensions. Colloids Surf A Physicochem Eng Asp 2018. [DOI: 10.1016/j.colsurfa.2018.07.041] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Xu J, Li J, Cao J. Effects of fumed silica weight fraction on rheological properties of magnetorheological polishing fluids. Colloid Polym Sci 2018. [DOI: 10.1007/s00396-018-4332-9] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Zabet M, Trinh K, Toghiani H, Lacy TE, Pittman CU, Kundu S. Anisotropic Nanoparticles Contributing to Shear-Thickening Behavior of Fumed Silica Suspensions. ACS OMEGA 2017; 2:8877-8887. [PMID: 31457416 PMCID: PMC6645521 DOI: 10.1021/acsomega.7b01484] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/04/2017] [Accepted: 11/27/2017] [Indexed: 06/10/2023]
Abstract
Rheological characteristics of a concentrated suspension can be tuned using anisotropic particles having various shapes and sizes. Here, the role of anisotropic nanoparticles, such as surface-functionalized multiwall carbon nanotubes (MWNTs) and graphene oxide nanoplatelets (GONPs), on the rheological behavior of fumed silica suspensions in poly(ethylene glycol) (PEG) is investigated. In these mixed-particle suspensions, the concentrations of MWNTs and GONPs are much lower than the fumed silica concentration. The suspensions are stable, and hydrogen-bonded PEG solvation layers around the particles inhibit their flocculation. Fumed silica suspensions over the concentration range considered here display shear-thickening behavior. However, for a larger concentration of MWNTs and with increasing aspect ratios, the shear-thickening behavior diminishes. In contrast, a distinct shear-thickening response has been observed for the GONP-containing suspensions for similar mass fractions (MFs) of MWNTs. For these suspensions, shear thickening is achieved at a lower solid MFs compared to the suspensions consisting of only fumed silica. A significant weight reduction of shear-thickening fluids that can be achieved by this approach is beneficial for many applications. Our results provide guiding principles for controlling the rheological behavior of mixed-particle systems relevant in many fields.
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Affiliation(s)
- Mahla Zabet
- Dave
C. Swalm School of Chemical Engineering, Mechanical Engineering Department, Aerospace Engineering
Department, and Department of Chemistry, Mississippi State University, Mississippi State, Mississippi 39762, United States
| | - Kevin Trinh
- Dave
C. Swalm School of Chemical Engineering, Mechanical Engineering Department, Aerospace Engineering
Department, and Department of Chemistry, Mississippi State University, Mississippi State, Mississippi 39762, United States
| | - Hossein Toghiani
- Dave
C. Swalm School of Chemical Engineering, Mechanical Engineering Department, Aerospace Engineering
Department, and Department of Chemistry, Mississippi State University, Mississippi State, Mississippi 39762, United States
| | - Thomas E. Lacy
- Dave
C. Swalm School of Chemical Engineering, Mechanical Engineering Department, Aerospace Engineering
Department, and Department of Chemistry, Mississippi State University, Mississippi State, Mississippi 39762, United States
| | - Charles U. Pittman
- Dave
C. Swalm School of Chemical Engineering, Mechanical Engineering Department, Aerospace Engineering
Department, and Department of Chemistry, Mississippi State University, Mississippi State, Mississippi 39762, United States
| | - Santanu Kundu
- Dave
C. Swalm School of Chemical Engineering, Mechanical Engineering Department, Aerospace Engineering
Department, and Department of Chemistry, Mississippi State University, Mississippi State, Mississippi 39762, United States
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Swarna, Pattanayek SK, Ghosh AK. Role of hydrogen bond interactions in water–polyol medium in the thickening behavior of cornstarch suspensions. Colloid Polym Sci 2017. [DOI: 10.1007/s00396-017-4107-8] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Liu M, Jiang W, Chen Q, Wang S, Mao Y, Gong X, Cham-Fai Leung K, Tian J, Wang H, Xuan S. A facile one-step method to synthesize SiO2@polydopamine core–shell nanospheres for shear thickening fluid. RSC Adv 2016. [DOI: 10.1039/c5ra25759j] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
An illustration of the synthesis of SiO2@PDA core/shell nanospheres, in which the coating on the surface of the SiO2nanospheres improves the rheological behavior of the resulting STFs.
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Hongbin Y, Wanli K, Jian Z, Bin Z. Energy dissipation behaviors of a dispersed viscoelastic microsphere system. Colloids Surf A Physicochem Eng Asp 2015. [DOI: 10.1016/j.colsurfa.2015.09.049] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Liu XQ, Bao RY, Wu XJ, Yang W, Xie BH, Yang MB. Temperature induced gelation transition of a fumed silica/PEG shear thickening fluid. RSC Adv 2015. [DOI: 10.1039/c4ra16261g] [Citation(s) in RCA: 73] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
An interesting gelation transition of fumed SiO2/PEG shear thickening fluid induced by elevating the temperature.
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Affiliation(s)
- Xi-Qiang Liu
- College of Polymer Science and Engineering
- Sichuan University
- State Key Laboratory of Polymer Materials Engineering
- Chengdu
- China
| | - Rui-Ying Bao
- College of Polymer Science and Engineering
- Sichuan University
- State Key Laboratory of Polymer Materials Engineering
- Chengdu
- China
| | - Xiao-Jun Wu
- College of Polymer Science and Engineering
- Sichuan University
- State Key Laboratory of Polymer Materials Engineering
- Chengdu
- China
| | - Wei Yang
- College of Polymer Science and Engineering
- Sichuan University
- State Key Laboratory of Polymer Materials Engineering
- Chengdu
- China
| | - Bang-Hu Xie
- College of Polymer Science and Engineering
- Sichuan University
- State Key Laboratory of Polymer Materials Engineering
- Chengdu
- China
| | - Ming-Bo Yang
- College of Polymer Science and Engineering
- Sichuan University
- State Key Laboratory of Polymer Materials Engineering
- Chengdu
- China
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