Chem. J. Chinese Universities ›› 2000, Vol. 21 ›› Issue (8): 1265.

• Articles • Previous Articles     Next Articles

Effect of Acrylic Copolymers on the Surface Properties of Alumina and the Fractal Characteristics of the Sediments

LIU Yang-Qiao, GAO Lian, GUO Jing-Kun   

  1. The State Key Laborator of High Performance Ceramics & Superfine Microstructure Studies, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050, China
  • Received:1999-08-25 Online:2000-08-24 Published:2000-08-24

Abstract: An acrylic copolymer was employed as a dispersant for Al2O3 aqueous suspensions. Surface chemistry of the suspensions was evaluated via isotherm adsorption, FTIRand ζ potential measurments. The optimum amount of dispersant was 2.0%. The fractal theory was used to analyze the surface morphology of the sediments. The results showed that the fractal dimension value of sediments increased with increasing dispersant amount in the experimental range.

Key words: Copolymer, Alumina, Adsorption, Fractal dimension

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