| 摘要 |
PURPOSE: Aqueous ceramic slurry and a method for preparing an aqueous ceramic tape using the slurry are provided, wherein the slurry contains no nonaqueous binder for preventing the danger of explosion, the environmental pollution and the problem of toxicity. CONSTITUTION: The aqueous ceramic slurry comprises metal oxide; 0.05-2.0 wt% of a dispersant, 10-50 wt% of water, 3-17 wt% of a plasticizer and 5-30 wt% of a PVP (poly(vinyl pyrrolidone)) binder based on the weight of the metal oxide; 0.5-30 wt% of a PVA (poly(vinyl alcohol)) binder based on the weight of the PVP binder; and optionally 0.1-2.0 wt% of gelatin as a binder based on the weight of the metal oxide. Preferably the metal oxide is alumina, spinel aluminate, zirconia or their mixtures; the dispersant is poly(methacrylic acid), poly(carboxylic acid), ammonium polyacrylate salt or ether; and the plasticizer is triethylene glycol, polyethylene glycol or their mixture.
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