以硝酸锶、钛酸四丁酯和氢氧化钾为原料,采用水热法制备了纳米SrTiO3粉体,用XRD、SEM、激光粒度分析仪等研究了制备过程中非离子表面活性剂SPAN80含量对纳米SrTiO3粉体物相、形貌、粒径和极性的影响.结果表明:表面活性剂SPAN80的添加对SrTiO3粉体晶型结构没有影响,且有效减弱了粉体的团聚;在SPAN80最佳添加量10％(体积分数)的条件下,制备得到SrTiO3粉体的颗粒尺寸约为39 nm,并呈球形;极性的SrTiO3粉体被SPAN80包裹后变成了非极性粉体.
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