Date recorded: May 12 2020

Duration: 01 hours 17 minutes 23 seconds

Titanium dioxide is a white pigment used in paints, pigments, plastics and various other specialty chemicals. It is preferred over other pigments like zinc oxide. Why? Because of its ability to give whiteness as well as hiding power or opacity to coatings. This is due to its properties of not absorbing visible light as well as its high refractive index. Titanium dioxide is however an expensive pigment and hence manufacturers need to carefully optimize it.

During this webinar, we share tips that manufacturers can engage to fully optimize the use of their pigments for high performance products. Our application specialist will draw reference to pigments such as titanium dioxide as well as other organic pigments. This is mainly by monitoring particle size, separations and mineralogical phase analysis

1. How to check for agglomerations and ensure separation of titanium dioxide pigment particles: remember that the pigment scatters light most efficiently when all particles are separated and well dispersed
2. Monitoring the particle size of TiO2 pigments: Size affects the opacity (scattering) behaviour of the paint
3. Glossiness and durability: Maintaining a small particle size prevents against weathering. This is since coatings consisting of large particles or agglomerates can be more easily dislodged, resulting in the surface rapidly losing its gloss.
4. Gloss retention and prevention of chalking at the surface: Organic binders in paint and pigments tend to degrade due to weathering, causing TiO2 to appear at the surface, hence giving the coating a chalky appearance. It is hence critical to check the phases of TiO2 using X-ray diffraction. In the rutile phase, TiO2 is more resistant to chalking.  

Interested to learn more? Join our free series of specialty chemicals and related webinars:

- Webinar 1: Optimizing the performance of titanium dioxide and other pigments for your paints, pigments, plastics. 

- Webinar 2: Introduction to nano particle size distribution analysis and zeta potential. More info

- Webinar 3: Introduction to particle size distribution analysis using laser diffraction. More info

- Webinar 4: Particle size analysis and data interpretation from laser diffraction data. More info

- Webinar 4: Introduction to mineralogical and phase analysis using X-ray diffraction. More info

Table of contents
1. Introduction
2. How to measure particle size
3. Particle size analysis using laser diffraction
4. Refractive index of TiO2
5. Interpreting particle size data
6. Dispersion options with Mastersizer3000
7. Analysing the hydrodynamic properties and zeta potential with DLS
8. Analysing results from DLS
9. Differentiating rutile from anatase using XRD
10. XRD results and analysis
11. Analyse particle size, shape & more with SAXS
12. XRD solutions
13. Conclusion
14. Q & A