Poly(methacrylate)‐derived diblock dispersant for TiO2 in aqueous suspensions |
| |
| Authors: | Chia‐Chen Li Shinn‐Jen Chang Chi‐Wei Wu Cha‐Wen Chang |
| |
| Affiliation: | 1. Institute of Materials Science and Engineering, and Department of Materials & Mineral Resources Engineering, National Taipei University of Technology, Taipei, Taiwan;2. Material and Chemical Research Laboratories, Industrial Technology Research Institute, Hsinchu, Taiwan |
| |
| Abstract: | In this paper, we propose a newly designed dispersant, ammonium poly(methacrylate)‐block‐poly(2‐phenoxyethyl acrylate) (PMA‐b‐PBEA), and our rheological and zeta potential test results verify its superior dispersion efficiency for aqueous suspensions in comparison to the commercial dispersant ammonium polyacrylate (PAA‐NH4). The extremely high dispersion efficiency of PMA‐b‐PBEA correlates closely to its diblock structure, which simultaneously exhibits a less polar anchoring head group and a water‐dissociable stabilizing moiety. The unique structure of PMA‐b‐PBEA accounts for its high powder adsorption effectiveness, which is demonstrated in its adsorption capability being double that of PAA‐NH4. |
| |
| Keywords: | dispersants/dispersion processing suspensions tape casting titanium oxide |
|
|
