Rheological modifiers clay
In exploring the field of efficient gelling of organic liquids with low and medium polarity, clay rheology modifiers ensure that pigments and fillers float in the liquid with extraordinary suspending power, effectively resisting the challenge of hard settling.
Density and Moisture: A density of 1.75g/cm³ with a moisture content of ≤3.5% (@105°C, 2 hours) ensures a stable and pure product.
The recommended proportion of polar activator (e.g. 95% ethanol, methanol, acetone or propylene carbonate) is 30%-50% by weight of the organobentonite, but the optimum proportion needs to be precisely determined experimentally to avoid under- or over-development of viscosity.
It not only exhibits excellent gelling efficiency in these media, but also maintains impressive thickening properties over a wide temperature span, and its viscosity is among the best in the industry.
Rheological modifiers clay
Rheological modifiers clay can be used in: greases: to optimize lubrication and reduce wear. Also in printing inks: for precise color rendering and improved print quality.
In adhesives and sealants and anti-corrosion coatings as well as in container coatings and asphalt coatings, it optimizes road performance and improves driving safety.
As a member of the conventional organoclay family, its potential is unlocked by mechanical energy, the shear force of highly efficient dispersing equipment, and the right amount of polar activator.
The amount to be added depends entirely on the characteristics of the target organic system and the desired degree of thickening or other specific properties.
Properties
Composition Organic derivative of a montmorillonite clay
Appearance Fine powder, light yellow
Moisture content (105℃, 2hr) ≤3.5%
Loss on ignition max, %( 1000℃) (26.0±1.5) %
Bulk density 0.40~0.60g/cm3
Fineness (<74μm, %) ≥99%
Dispersion fineness (μm) ≤10
Advantages
- High purity, low silica content.
- Fine dispersion and particle size.
- Good self-activated property.
- Gel is very transparent and of light color
- High
- Cost effective.
Application
CP-21A is used in the following applications:
- Lubricating grease, mainly in grease based on mineral oil.
- Paints including decorative paint, industrial paint.
- Ink.
- Sealants and adhesive.
Using
It is a super dispersible grade that can increase flexibility in paint manufacturing. It can be added directly in powder under high shear condition. Addition level is commonly 0.1%~1.0% (7%-10% in greases) of total formulation by weight. Polar activator can be eliminated, but small dosage of polar activator is helpful to achieve better performance.
When non-aliphatic solvent presents, the effectiveness of CP-21A should be evaluated.
