|
Designation |
Properties |
Functionalities |
|
Sepiolites |
Acicular, non-swelling |
Rheological additives, for polar systems, high structural viscosity, formation of chain-like particulate networks, more effective than attapulgite, increased resistance to cleaners and abrasives, reduced tendency to adhere in grouts and mortars, improved flow, reduced sedimentation tendency, usable in pH range from 3-14, minimal sensitivity to electrolytes, require high shear forces to disperse. |
|
Organo-sepiolites |
Acicular, non-swelling |
Rheological additives for non-polar to medium-polar systems; high structural viscosity; formation of particulate networks, more effective than attapulgite, increased resistance to cleaners and abrasives, reduced tendency to adhere in grouts and mortars, improved flow, reduced sedimentation tendency, usable in pH range from 3-14, minimal sensitivity to electrolytes, require high shear forces to disperse |
|
Attapulgites |
Acicular, non-swelling |
Rheological additives for polar systems, high structural viscosity, formation of chain-like particle networks, not as effective as sepiolite, increased resistance to cleaners and abrasives, reduced tendency to stick in grouts and mortars, improved flow, reduced sedimentation tendency, usable in pH range from 3-14, minimal sensitivity to electrolytes, require medium shear forces to disperse, cost-effective |
|
Bentonites |
Montmorillonite,and swellable |
high structural viscosity, good to excellent thickening effect, massive water absorption with simultaneous swelling, sensitive to electrolytes, reduced tendency to stick in grouts and mortars, improved flow, massive reduction of sedimentation tendency, for aqueous and highly polar systems only, easily dispersed, cost-effective |
|
Organo-bentonites |
Montmorillonite, and swellable |
high structural viscosity, good to excellent thickening effect, massive water absorption with simultaneous swelling, sensitive to electrolytes, reduced tendency to stick in grouts and mortars, improved flow, massive reduction of sedimentation tendency, depending on surface treatment for non-polar or for medium to highly polar systems, activation may be necessary in certain circumstances. |
