| 摘要 |
PURPOSE:To provide the titled composition either neutral, weakly acidic, or weakly alkaline, capable of grinding plastic products in high efficiency leading to high-quality ones, comprising water, aluminum oxide as a grinding agent, and such a grinding promotor as nickel acetate. CONSTITUTION:The objective composition comprising (A) pref. 2-30wt% of wtaer (B) pref. 1-20wt% of aluminum oixde as a grinding agent with a pH 5-9 and average particle size pred. 0.7-4.0mum and (C) as a grinding promotor, nickel acetate, lighium acetate, lithium sulfate, sodium sulfate, sodium acetate, ammonium acetate, magnesium sulfate, magnesium acetate, magnesium ammonium sulfate, potassium sulfate, cobalt sulfate, sodium thiosulfate, nickel formate, or lithium citrate. |
