程敏¹,田蒙奎¹,陶文亮²,李龙江³,颜婷珪¹

• 1:贵州大学 化学与化工学院，贵州 贵阳 550025
• 2:贵州民族大学 化工学院，贵州 贵阳 550025
• 3:贵州大学 矿业学院，贵州 贵阳 550025

摘要(Abstract)：

以堇青石为原料，采用“分步制备、整体组装、一次烧结”的方式制备了比表面积大且能够减缓堵塞的新型气泡发生器。考察了单一粒径及复合粒径聚苯乙烯（PS）微球对气泡发生器的基本性能及发泡性能的影响，并讨论两种粒径类型的PS微球对材料孔隙率的影响机理。结果表明：添加复合粒径PS微球试样的内部，孔棱上分布着更多微观小孔且宏观大孔在烧结过程中引起的体积收缩更小，这是引起材料孔隙率更高的主要原因。复合粒径造孔剂试样能产生更多的微细气泡，但气泡粒径分布范围变宽、平均尺寸变大。当复合粒径为5/10 μm时，试样基本性能良好，产生的气泡数量较多且气泡平均尺寸仅有25.86 μm，能很好地满足气浮要求。

关键词(KeyWords)： 多孔陶瓷;造孔剂;孔结构;微气泡;气泡粒径分布

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金（21663009）；贵州省优秀青年科技人才计划（黔科合平台人才（2017）5605）；贵州省科技计划项目（黔科合平台人才（2017）5788号）；贵州省科技计划项目（黔科合支撑[2019]2835号）；国家重点研发计划子课题（2018YFC1801706-01）。

作者(Author): 程敏¹,田蒙奎¹,陶文亮²,李龙江³,颜婷珪¹

DOI: 10.3969/j.issn.1003-9015.2020.05.027

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