机械力化学法超细改性硅灰石实验研究

The Study on Mechanicochemical Pulverization and Modification Experiment of the Superfine Wollastonite

以湖北大冶大箕铺硅灰石为研究对象 ,以制备具有大长径比的改性硅灰石为主要目的 ,采用机械力化学法进行改性工艺试验。探讨了超音速气流磨、行星式球磨机、砂磨机三种工艺条件下 ,机械力化学法改性产品的性能特点 ,分析了不同工艺对改性硅灰石产品微观形貌、粒度、白度、活化率、润湿角等性能指标的影响、产生的结果及原因。结果表明 :机械力化学改性法制备增强型硅灰石填料是一种简捷有效的方法。活化率、润湿角、红外光谱分析表明此方法改性效果良好 。

This thesis mainly discussed the production of ultrafine activated wollastonite.All experiments were based on the mechanism of mechanicochemical modification.The material that was used in experiments comes from Daye,Hubei.We design four schemes to pulverize activated wollastonite in order to validate the effect of different techniques.Experimental results indicated that those samples which pulverized and activated by supersonic speed airflow have excellent properties.