Use of a Closed Vial Milling System in Investigations of Carbon Black Ink Formulations - poster
Stephen R Bysouth¹, Muhammad Ali²
1 SARL Automaxion, L'Auvrairie, 50250 Varenguebec, France
2 N.E.D University of Engineering & Technology, Karachi, Pakistan
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Experimentation in dispersion can be time consuming, messy, consume considerable amounts of materials and consequently, produce large volumes of waste. A product of the development of technology for high throughput experimentation is the Automaxion multi-sample milling system based on planetary milling, which facilitates bead milling in ordinary glass vials. It has been applied to particle size reduction of materials from refractories to pharmaceuticals, comminution of crop protectants, milling of heterogeneous catalysts, cocrystal screening, mechano-chemical preparation of MOF's and the dispersion of pigments in coatings and, as presented here, ink concentrates.

We will show that small samples of carbon black ink concentrates of about 10 ml can be prepared quickly and are suitably equivalent to larger samples prepared using a laboratory recirculating bead mill. Comparisons of  particle size, zeta potential and rheology of samples prepared by both techniques are presented and  their rheological stability over four weeks is compared.