TITANIUM DIOXIDE  R***9

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 ****1) ........................................................................  R2

Specific gravity (ISO *****0) .......................................................................... 4.0g/cm3

TiO2 content (ISO ****1) .................................................................................. ≥*2.5%

**5°C volatile under package (ISO****2) .......................................................... ≤0.5%

Soluble substances (ISO ****2) ........................................................................  ≤0.5%

Residue on sieve (*5µm) (ISO*****8) .............................................................. ≤0.*1%

Rutile transformation rate ..................................................................................... ≥*9%

Application conditions

Whiteness of oil system(L*)note1 ..................................................................... *5.***5.5

Hue (b*)note1........................................................................................................ 1.**2.0

Relative scattering strenght (ISO*****4) ............................ close to the sample ≥**0%

Color within the color system (ISO*****5) .............. close to the sample color ΔE≤0.3

PH value of aqueous suspension (ISO ****9) .................................................... 6.**8.0

Oil absorption volume (ISO ****5) .............................................................. ≤*0g/**0g

Resistivity of aqueous extract (ISO*****4) ..................................................... ≥*0Ω.M

Dispersion under high-speed mixing of Alkyd systemnote2.............................. ≤*7.5µm

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 **0µm. 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.