Change in viscosity of a gel or fluid caused by stress
Mānuka honey is an example of a thixotropic material.
Thixotropy is a time-dependent shear thinning property. Certain gels or fluids that are thick or viscous under static conditions will flow (become thinner, less viscous) over time when shaken, agitated, shear-stressed, or otherwise stressed (time-dependent viscosity). They then take a fixed time to return to a more viscous state.[1]
Some non-Newtonian pseudoplastic fluids show a time-dependent change in viscosity; the longer the fluid undergoes shear stress, the lower its viscosity. A thixotropic fluid is a fluid which takes a finite time to attain equilibrium viscosity when introduced to a steep change in shear rate. Some thixotropic fluids return to a gel state almost instantly, such as ketchup, and are called pseudoplastic fluids. Others such as yogurt take much longer and can become nearly solid. Many gels and colloids are thixotropic materials, exhibiting a stable form at rest but becoming fluid when agitated. Thixotropy arises because particles or structured solutes require time to organize.[2]
Some fluids are anti-thixotropic: constant shear stress for a time causes an increase in viscosity or even solidification. Fluids which exhibit this property are sometimes called rheopectic. Anti-thixotropic fluids are less well documented than thixotropic fluids.[2]
^Morrison, Ian (2003). "Dispersions". Kirk-Othmer encyclopedia of Chemical Technology. doi:10.1002/0471238961.0409191613151818.a01. ISBN 978-0471238966.
^ abMewis, J; Wagner, N J (2009). "Thixotropy". Advances in Colloid and Interface Science. 147–148: 214–227. doi:10.1016/j.cis.2008.09.005. PMID 19012872.
Thixotropy is a time-dependent shear thinning property. Certain gels or fluids that are thick or viscous under static conditions will flow (become thinner...
and is usually defined as excluding time-dependent effects, such as thixotropy. Shear thinning is the most common type of non-Newtonian behavior of fluids...
Bulldust Dry quicksand Grain entrapment Quick condition Sapric Tar pit Thixotropy Khaldoun, A., E. Eiser, G. H. Wegdam, and Daniel Bonn. 2005. "Rheology:...
Liquid air Liquid helium Liquid hydrogen Liquid nitrogen Liquid oxygen Thixotropy Some authors contend that there is a distinction between liquefaction...
which fluids become less viscous the longer they undergo shear, is called thixotropy. Examples of rheopectic fluids include gypsum pastes and printer inks...
Properties Hydraulic conductivity Water content Void ratio Bulk density Thixotropy Reynolds' dilatancy Angle of repose Friction angle Cohesion Porosity Permeability...
emulsion paint (US terminology latex paint or acrylic paint), exhibiting thixotropy, where an increase in relative flow velocity will cause a reduction in...
Properties Hydraulic conductivity Water content Void ratio Bulk density Thixotropy Reynolds' dilatancy Angle of repose Friction angle Cohesion Porosity Permeability...
Your Project". Home Reference. 2019. Retrieved 2021-03-31. "Influence of thixotropy on stability characteristics of cement grout and concrete". Research Gate...
Properties Hydraulic conductivity Water content Void ratio Bulk density Thixotropy Reynolds' dilatancy Angle of repose Friction angle Cohesion Porosity Permeability...
gum. It is very thixotropic above 1% concentration, but below 0.3%, the thixotropy is slight. Guar gum shows viscosity synergy with xanthan gum.[clarification...
Properties Hydraulic conductivity Water content Void ratio Bulk density Thixotropy Reynolds' dilatancy Angle of repose Friction angle Cohesion Porosity Permeability...
Properties Hydraulic conductivity Water content Void ratio Bulk density Thixotropy Reynolds' dilatancy Angle of repose Friction angle Cohesion Porosity Permeability...
Properties Hydraulic conductivity Water content Void ratio Bulk density Thixotropy Reynolds' dilatancy Angle of repose Friction angle Cohesion Porosity Permeability...
sandwiched between inner and outer steel layers. Through a mechanism called thixotropy, the resin changes to a fluid under constant pressure, allowing the armour...
Properties Hydraulic conductivity Water content Void ratio Bulk density Thixotropy Reynolds' dilatancy Angle of repose Friction angle Cohesion Porosity Permeability...
Simulation#Soil liquefaction research Paleoseismology Sand boil Subsidence Thixotropy Hazen, A. (1920). "Hydraulic Fill Dams". Transactions of the American...
theory Suspension (chemistry) Power-law fluid Pseudoplastic Silly Putty Thixotropy Liquid armor D3O Coleman, Paul C. Painter, Michael M. (1997). Fundamentals...
affecting the rate of formation of the cast piece include: the viscosity and thixotropy of the slip, which are invariably modified immediately before casting...
Properties Hydraulic conductivity Water content Void ratio Bulk density Thixotropy Reynolds' dilatancy Angle of repose Friction angle Cohesion Porosity Permeability...
Properties Hydraulic conductivity Water content Void ratio Bulk density Thixotropy Reynolds' dilatancy Angle of repose Friction angle Cohesion Porosity Permeability...
typical thickener is stearalkonium hectorite. Thickening agents exhibit thixotropy, their solutions are viscous when still but free-flowing when agitated...
Properties Hydraulic conductivity Water content Void ratio Bulk density Thixotropy Reynolds' dilatancy Angle of repose Friction angle Cohesion Porosity Permeability...
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