Laboratory work demonstrates the effect of Borregaard biopolymer on the particle size distribution of a carbon black dispersion.
Particle size measurement in carbon black slurry
In the laboratory, a 5% weight carbon black was dispersed in 5 mM NaCl solution by sonication. The particle sizes were determined 1 min after the end of sonication, with and without the addition of Borregaard biopolymer.
Key takeaways:
- Medium particle sizes are significantly reduced by adding Borregaard biopolymer
- Provides longer shelf life
- Achieves better product homogeneity
Particle size distribution of 5 wt% carbon black with different concentrations of biopolymer.