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This Nano-Precipitated Calcium Carbonate
(NPCC) product is designed for use as
special functional filler/additive in
architectural paint. NPCC-111 can be added
as a functional filler or opacifier in
paint and coating with exceptional
rheological properties. Under high shear,
NPCC-111 exhibits shear thinning in the
coating, making it flow easily and
facilitating the application of the
coating onto a surface. Once shear is
removed, viscosity returns enabling the
coating to adhere to the surface without
sagging or running.
NPCC-111 can be used to partially replace
titanium dioxide while maintaining similar
hiding power, whiteness and finish.
Studies have shown that up to 20% of the
TiO2 can be replaced without
affecting the hiding power, while
improving the thixotropic properties of
the paint.
TYPICAL
VALUES
|
dNPCC-111
|
Technical
guidelines |
| Appearance |
White
filtered cake |
| Specific
gravity, dry basis (g/cm3) |
2.5-2.6 |
| Particle
size (avg), (nm) |
15-40 |
| Particle
shape |
Cubic |
| Whiteness
(%) |
¡Ý90 |
| PH |
8.0-9.0 |
| Moisture
content (wt) (%) |
50¡À2 |
| CaCO3
(wt) dry basis (unmodified) (%) |
¡Ý97.5 |
| MgO
(wt) (%) |
¡Ü0.5 |
| Surface
modification |
None |
|
