In this study, an effective dispersant for raw ceramic suspension, poly (acrylic acid-co-maleic anhydride) (P(AA-MA)) has been synthesized via reversible addition-fragmentation chain transfer (RAFT) polymerization. The static viscosity, zeta potential, rheological behavior and sedimentation measurements of P(AA-MA) modified ceramic suspension were carried out, respectively. The measurements suggested that the amount of dispersant affected the suspensions stability significantly. When 0.3 wt.% dispersant was used, the resulting suspension provided the lowest static viscosity and the highest stability. Moreover, the area of the thixotropy loop was small, when dispersant amount was 0.25 wt.% based on solid content and it turned flat as the dispersant amount increased to 0.3 wt.%.

Keywords: Poly (acrylic acid-co-maleic anhydride), Raw ceramic suspension, Dispersant amount, Stability, Thixotropy.