Solid colloidal particles inducing coalescence in bitumen-in-water emulsions

被引：34
|
作者：
Legrand, J
Chamerois, M
Placin, F
Poirier, JE
Bibette, J
Leal-Calderon, F
机构：
[1] ISTAB, Lab Milieux Disperses Alimentaires, F-33405 Talence, France
[2] ESPCI, Lab Colloides & Mat Divises, F-75231 Paris 05, France
[3] COLAS, Cent Rech Lab, F-78771 Magny Les Hameaux, France
来源：
LANGMUIR | 2005年 / 21卷 / 01期
关键词：
D O I：
10.1021/la047649s
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
Silica particles are dispersed in the continuous phase of bitumen-in-water emulsions. The mixture remains dispersed in quiescent storage conditions. However, rapid destabilization occurs once a shear is applied. Observations under the microscope reveal that the bitumen droplets form a colloidal gel and coalesce upon application of a shear. We follow the kinetic evolution of the emulsions viscosity, eta, at constant shear rate: eta remains initially constant and exhibits a dramatic increase after a finite time, tau. We study the influence of various parameters on the evolution of tau: bitumen droplet size and volume fraction, silica diameter and concentration, shear rate, etc.
引用
收藏
页码：64 / 70
页数：7
相关论文
共 50 条
  • [1] THE COMBUSTION OF BITUMEN-IN-WATER EMULSIONS
    MARCANO, N
    POURKASHANIAN, M
    WILLIAMS, A
    FUEL, 1991, 70 (08) : 917 - 923
  • [2] Bitumen-in-water emulsions stabilized with natural surfactants
    Acevedo, S
    Gutierrez, X
    Rivas, H
    JOURNAL OF COLLOID AND INTERFACE SCIENCE, 2001, 242 (01) : 230 - 238
  • [3] Bitumen-in-water emulsions: An overview on formation, stability, and rheological properties
    Gutierrez, X
    Silva, F
    Chirinos, M
    Leiva, J
    Rivas, H
    JOURNAL OF DISPERSION SCIENCE AND TECHNOLOGY, 2002, 23 (1-3) : 405 - 418
  • [4] Stability of highly charged particles:: bitumen-in-water dispersions
    Rodríguez-Valverde, MA
    Cabrerizo-Vílchez, MA
    Páez-Dueñas, A
    Hidalgo-Alvarez, R
    COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS, 2003, 222 (1-3) : 233 - 251
  • [5] Rupturing of bitumen-in-water emulsions:: experimental evidence for viscous sintering phenomena
    Bonakdar, L
    Philip, J
    Bardusco, P
    Petkov, J
    Potti, JJ
    Méléard, P
    Leal-Calderon, F
    COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS, 2001, 176 (2-3) : 185 - 194
  • [6] Thermal destabilisation of bitumen-in-water emulsions - A spinning drop tensiometry study
    Taylor, Spencer E.
    FUEL, 2011, 90 (10) : 3028 - 3039
  • [7] Stability of bitumen in water emulsions .3. Coalescence
    Cardenas, A
    Rossi, S
    Pazos, D
    Rivas, H
    VISION TECNOLOGICA, 1997, 4 (02): : 105 - 118
  • [8] Properties and energy prospects of bitumen-in-water fuel emulsions stabilized by carboxymethylated lignins
    Li, Shuai
    Mazloumpour, Maryam
    Willoughby, Julie
    Rojas, Orlando J.
    ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY, 2014, 247
  • [9] COLLOID CHEMICAL STUDIES ON BITUMEN-IN-WATER EMULSIONS .1. ABSORPTION OF WATER IN THE BITUMEN DROPLETS AND OTHER FACTORS AFFECTING EMULSION VISCOSITY
    TAUSK, RJM
    WILSON, PN
    COLLOIDS AND SURFACES, 1981, 2 (01): : 71 - 80
  • [10] Stability of bitumen in water emulsions. Part III. Coalescence
    Cardenas, Antonio
    Rossi, Sylvia
    Pazos, Dolores
    Rivas, Hercilio
    Vision Tecnologica, 1997, 4 (02): : 105 - 108
12345