Titanium Dioxide R251 For PVC Plastics
Advantage of Titanium Dioxide R251:
Good dispersion
1) The dispersibility is determined according to the standard ISO8780-3:1900 "Dispersion method for evaluation of dispersion according to pigments and physical pigments - Part 3: Dispersion by high-speed mixing machine", and the detection parameter is 70% of pigment content. The dispersion line speed is 10.5m/s, and the high-speed dispersion time is 10min; The calculation of coarse particles is 75 μ M Number of particles in 1 square inch of groove depth; The calculation of fine particles is 25 μ M Number of particles in 1 square inch of groove depth.
2)Titanium Dioxide R-251 has good dispersion and very low content of visible particles.
Very good whiteness
1) The titanium dioxide powder is dispersed in the Resin to make a paint with a pigment volume concentration (PVC) of 17%. The white paint is made into a fully covered paint film, and the color is detected after the film is formed.
2) Zechang Titanium Dioxide R-251 has a good whiteness, which is superior to most of the peers of sulfuric ACID titanium dioxide.
Good covering power and luster
1) Covering power: use high-speed mixing to disperse titanium dioxide in the resin to make paint with pigment volume concentration (PVC) of less than 17%, and use white paint to make dry film thickness of 19 μ M of paint film, and the contrast is measured after film formation.
2) Gloss: titanium dioxide is dispersed in the resin by high-speed mixing to make paint with 17% and 35% volume concentration of pigment (PVC), respectively 150 μ M wet film preparator is used to make the paint film, and the film is tested for 20. Gloss.
3) Rutile Grade Titanium Dioxide R-251 has a good gloss in the paint and a good hiding power in most paint systems.
Strong blue background and high extinction
1) The content of titanium dioxide in grey PVC containing Plasticizer is 2PHR.
2) Titanium Dioxide Rutile R-251 particle size is fine and concentrated. With the help of excellent inorganic surface treatment and unique organic treatment, it can obtain good color extinction and ultra-blue base phase in the color paddle and color chip industry.
3) Titanium Dioxide R-251 is used in the color chip industry of leather, which can additionally obtain better heat resistance and yellowing performance.
Specification of Titanium Dioxide R251:
| Items | Specs |
| Tio2 content %(m/m) | ≥92.5 |
| Brightness L* | ≥94.8 |
| Reducing power (Reynolds number 9) | ≥1880 |
| SCX Value | 3.2 ～ 3.8 |
| PH | 6 ～ 8 |
| Resistivity of water liquid extract，Ωm | ≥80 |
| Rutile content，% | ≥98 |
| Oil absorption，g/100g | ≤20 |
| Residue on sieve 45μm，%（m/m） | ≤0.02 |
| 105℃ volatiles，%（m/m） | ≤0.5 |
| Oil-dispersing property（Hageman number) | ≥6.0 |
| Whiteness | Similar or not lower than |
Application of Titanium Dioxide R251: The coating industry is used as a white pigment and porcelain glaze medicine, as a coating and filler in the paper industry, to improve the printability and opacity of the paper. It is used in the metallurgical industry to make sponge titanium, ferrotitanium alloy, hard alloy, etc. It is used for making insulators, welding electrodes, enamel, etc. It can also be used in fiber, plastic, rubber, printing, printing and dyeing, cosmetics industry, as well as medical fillers and food additives. It is recommended to use 1: architectural paint. 2: Industrial coatings. 3: Solvents for automotive applications. 4: General paint for water-based system.
Packing of Titanium Dioxide R251:
The net content of each bag is 25kg. If customers have special requirements, they can provide customized packaging specifications.
Storage of Titanium Dioxide Rutile:
The package shall be complete and the loading shall be safe when starting. During transportation, it shall be protected from sun, rain and high temperature.
Except Titanium Dioxide Rutile R251,we can also supply Titanium Dioxide R996,Carbon Black N330, Pvc Resin SG5,PVA Resin 2488, Paste PVC Resin, Iron Oxide Pigments etc.
Packing of Titanium Dioxide R251: 
Contact Now
