基于原子力显微镜(AFM)测量了单个典型电站微米飞灰颗粒(粒径6μm)与石墨表面间的粘附力和静电力相互作用,获得了颗粒的表面能并考查了相对湿度对静电力的影响.在环境气氛下基本检测不到静电作用,而在真空下静电吸引作用显著.静电力主要来自颗粒一表面间的接触荷电,作用特性可以用一个简化的点电荷模型很好地定量描述.
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