Rheology and internal dynamics of colloidal gels from the dilute to the concentrated regime

被引：25
作者：
Romer, S. [1 ]
Bissig, H. [1 ]
Schurtenberger, P. [1 ]
Scheffold, F. [1 ]
机构：
[1] Univ Fribourg, Dept Phys, CH-1700 Fribourg, Switzerland
来源：
EPL | 2014年 / 108卷 / 04期
基金：
瑞士国家科学基金会;
关键词：
AGGREGATION; TRANSITION; ELASTICITY; BEHAVIOR; MODEL;
D O I：
10.1209/0295-5075/108/48006
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
We explore the relations between dynamical, rheological and structural properties of colloidal gels extending the range previously considered towards higher particle volume fractions phi(0). Up to phi(0) similar to 0.1 the spectrum of the time-dependent mean-square displacement is shown to be fully described by models accounting for the fractal character of gels. Beyond that, the direct relations between structural and stress-bearing properties used in fractal descriptions do not hold anymore. However, by considering the concepts of passive tracer rheology we show that the macroscopic shear modulus G(0) can be derived from the dynamical properties up to even higher volume fractions. Copyright (C) EPLA, 2014
引用
收藏
页数：5
相关论文
共 50 条
  • [31] ELASTIC PROPERTIES OF POROUS SILICA DERIVED FROM COLLOIDAL GELS
    ASHKIN, D
    HABER, RA
    WACHTMAN, JB
    [J]. JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 1990, 73 (11) : 3376 - 3381
  • [32] Aluminosilicate colloidal gels: from the early age to the precipitation of zeolites
    Poulesquen, Arnaud
    Gomes Rodrigues, Donatien
    Keshavarz, Bavand
    Courtois, Nicolas
    Ilavsky, Jan
    McKinley, Gareth H.
    [J]. SOFT MATTER, 2024, 20 (28) : 5538 - 5552
  • [33] Depletion gels from dense soft colloids: Rheology and thermoreversible melting
    Truzzolillo, Domenico
    Vlassopoulos, Dimitris
    Munam, Abdul
    Gauthier, Mario
    [J]. JOURNAL OF RHEOLOGY, 2014, 58 (05) : 1441 - 1462
  • [34] Start-up shear of concentrated colloidal hard spheres: Stresses, dynamics, and structure
    Koumakis, N.
    Laurati, M.
    Jacob, A. R.
    Mutch, K. J.
    Abdellali, A.
    Schofield, A. B.
    Egelhaaf, S. U.
    Brady, J. F.
    Petekidis, G.
    [J]. JOURNAL OF RHEOLOGY, 2016, 60 (04) : 603 - 623
  • [35] Small and large deformation rheology of acid gels from transglutaminase treated milks
    Jaros, Doris
    Paetzold, Janett
    Schwarzenbolz, Uwe
    Rohm, Harald
    [J]. FOOD BIOPHYSICS, 2006, 1 (03) : 124 - 132
  • [36] Small and Large Deformation Rheology of Acid Gels from Transglutaminase Treated Milks
    Doris Jaros
    Janett Pätzold
    Uwe Schwarzenbolz
    Harald Rohm
    [J]. Food Biophysics, 2006, 1 : 124 - 132
  • [37] Multiscale relaxation in aging colloidal gels: From localized plastic events to system-spanning quakes
    Filiberti, Zeno
    Piazza, Roberto
    Buzzaccaro, Stefano
    [J]. PHYSICAL REVIEW E, 2019, 100 (04)
  • [38] Dilute gels with exceptional rigidity from self-assembling silk-collagen-like block copolymers
    Martens, Aernout A.
    van der Gucht, Jasper
    Eggink, Gerrit
    de Wolf, Frits A.
    Stuart, Martien A. Cohen
    [J]. SOFT MATTER, 2009, 5 (21) : 4191 - 4197
  • [39] Static and Dynamics of Concentrated Colloidal System Close to the Freezing Transition: Effect of Varying Particle Softness
    Samukcham, Jimpaul
    Shagolsem, Lenin S.
    [J]. MACROMOLECULAR SYMPOSIA, 2021, 399 (01)
  • [40] Nanostructures and Viscosities of Nafion Dispersions in Water/Ethanol from Dilute to Concentrated Regimes
    Gupit, Caidric Indaya
    Li, Xiang
    Maekawa, Ryosuke
    Hasegawa, Naoki
    Iwase, Hiroki
    Takata, Shinichi
    Shibayama, Mitsuhiro
    [J]. MACROMOLECULES, 2020, 53 (04) : 1464 - 1473
12345