TITANIUM DIOXIDE TIO2 R919

R-919 combines properties such as excellent dispersion, Super durability ,excellent whiteness ,high gloss and tinting strength

TITANIUM DIOXIDE  R-919

Application

High-grade plastic profile, plastic masterbatch and other plastic system with high requirements on durability.

Characters:

High color covering

Easy to disperse

Treated with Zr. Al.and Si., it has excellent weather resistance, gloss retention and anti-yellowing.

Make the white color product have high lightness and stable color

Basic characters:

Process ........................................................... Rutile paint produced by sulfate process

Surface treatment ...... zirconium,silicon,aluminum,special organic substance covering

Standard classification(ISO 591-1) ........................................................................  R2

Specific gravity (ISO 787-10) .......................................................................... 4.0g/cm3

TiO2 content (ISO 591-1) .................................................................................. ≥92.5%

105°C volatile under package (ISO787-2) .......................................................... ≤0.5%

Soluble substances (ISO 787-2) ........................................................................  ≤0.5%

Residue on sieve (45µm) (ISO787-18) .............................................................. ≤0.01%

Rutile transformation rate ..................................................................................... ≥99%

Application conditions

Whiteness of oil system(L*)note1 ..................................................................... 95.0-95.5

Hue (b*)note1 ........................................................................................................ 1.7-2.0

Relative scattering strenght (ISO787-24) ............................ close to the sample ≥100%

Color within the color system (ISO787-25) .............. close to the sample color ΔE≤0.3

PH value of aqueous suspension (ISO 787-9) .................................................... 6.5-8.0

Oil absorption volume (ISO 787-5) .............................................................. ≤20g/100g

Resistivity of aqueous extract (ISO787-14) ..................................................... ≥80Ω.M

Dispersion under high-speed mixing of Alkyd systemnote2 .............................. ≤27.5µm

Test instructions

1, Test for whiteness of oil system (L*) and Hue (b*): Grind the titanium dioxide with grinding mill, to make a film with thickness of 100µm. Calibrate with ASTM standard ceramic tile by Differential Colorimeter. Then test the surface of the film and indicate with CIE L*, a*, b*.

2, Test for Dispersion under high-speed mixing of Alkyd system: In the alkyd resin system, test with Scraper fineness gage after dispersion by high-speed mixer. Other items please refer to ISO standard.

TITANIUM DIOXIDE TIO2 R919