Journal of Materials Science

, Volume 37, Issue 9, pp 1831–1837 | Cite as

Tape casting aqueous alumina suspensions containing a latex binder

  • Yongheng Zhang
  • J. Binner


The tape casting of ceramic membrane substrates of ∼1 mm thickness has been studied using two grades of ammonium polymethylacrylate (PMA) as a dispersing agent, dibutylphthalate as a plasticizer and polyvinylacetate (PVAc) latex as a binder. The colloidal stability of the alumina particles in the precursor slip was characterized using zeta potential measurements and the rheological behaviour of the slips. After tape casting, the density, strength and flexibility of the green tapes were studied in terms of changes in the plasticizer concentration and pH of the slip. The results indicated that alumina particles could be stabilized at pH 6–10 at a PMA15 concentration of 10 mg g−1. The slips prepared with the polyelectroyte also displayed a strong shear thinning effect, which is important for tape casting. With the proper addition of plasticizer and adjustment of pH, it was found that a PVAc latex-based system can yield green alumina tapes with high green strength and flexibility.


Alumina Particle PVAc Zeta Potential Measurement Ceramic Membrane Dibutylphthalate 
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Copyright information

© Kluwer Academic Publishers 2002

Authors and Affiliations

  • Yongheng Zhang
    • 1
  • J. Binner
    • 2
  1. 1.Department of Materials Science and TechnologyQingdao Institute of Chemical TechnologyQingdaoPeople's Republic of China
  2. 2.IPTMELoughborough UniversityLeicestershireUK

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