聚α-甲基苯乙烯薄膜多孔结构影响因素研究

杨睿戆; 徐嘉靖; 高聪; 马霜; 陈素芬; 罗炫; 方瑜; 李波

doi:10.7538/yzk.2014.youxian.0004

聚α-甲基苯乙烯薄膜多孔结构影响因素研究

中国工程物理研究院激光聚变研究中心,四川绵阳621900

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- 刊出日期: 2015-01-19

Formation Factor of Regular Porous Pattern in Polyα-methylstyrene Film

China Academy of Engineering Physics, P. O. Box 919-987, Mianyang 621900, China

摘要

摘要: 采用铸膜液对聚α-甲基苯乙烯（PAMS）薄膜在高湿度条件下形成多孔结构的影响因素进行了研究。结果表明，PAMS的相对分子质量、PAMS浓度、环境温度/湿度、溶剂挥发性及液膜厚度等因素决定了薄膜表面孔洞的大小及其分布。液膜中水滴的运动是水滴间毛细管作用力和Bénard-Marangoni对流共同作用的结果，这是孔洞形成规则排列的主要驱动力。
- 聚α-甲基苯乙烯 ,
- 多孔薄膜 ,
- Bénard-Marangoni对流 ,
- 表面张力
Abstract: Regular poly α-methylstyrene (PAMS) porous film with macron-sized cells was prepared by casting the solution in the condition with high humidity. In this paper, the effects of the molecular weight of PAMS, PAMS concentration, humidity, temperature, volatile solvents and the thickness of liquid of solution on formation of regular porous pattern in PAMS film were discussed. The results show that these factors significantly affect the pore size and the pore distribution. The capillary force and Bénard-Marangoni convection are main driving forces for the water droplet moving and making pores regular arrangement.
- polyα-methylstyrene ,
- porous film ,
- Bénard-Marangoni convection ,
- surface tension

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参考文献(15)

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聚α-甲基苯乙烯薄膜多孔结构影响因素研究

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Formation Factor of Regular Porous Pattern in Polyα-methylstyrene Film

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