支撑炭膜制备过程中的缺陷形成与避免

新型炭材料, 2013, 28(5): 369-377. doi: 10.1016/S1872-5805(13)60089-X

支撑炭膜制备过程中的缺陷形成与避免

^1, , ^2, , ^3,

1.Research center for membrane separation processes, Chemical engineering department,Iran university of science and technology(IUST), Narmak, Tehran, Iran;Gas research division, Research institute of petroleum industry, West Blvd.Azadi Sport Complex, Tehran, Iran

2.Research center for membrane separation processes, Chemical engineering department,Iran university of science and technology(IUST), Narmak, Tehran, Iran

3.Gas research division, Research institute of petroleum industry, West Blvd.Azadi Sport Complex,Tehran, Iran

关键词：气体分离 , 炭膜 , 酚酸树脂 , 缺馅形成 , 缺馅避免

Defect formation and prevention during the preparation of supported carbon membranes

Mohammad Mahdyarfar ^1, , Toraj Mohammadi ^2, , Ali Mohajeri ^3,

2.Research center for membrane separation processes, Chemical engineering department,Iran university of science and technology(IUST), Narmak, Tehran, Iran

3.Gas research division, Research institute of petroleum industry, West Blvd.Azadi Sport Complex,Tehran, Iran

Keywords： Gas separation , Carbon membrane , Phenolic resin , Defect formation , Defect prevention

以酚醛树脂为前驱体在多孔石墨上制备了支撑炭膜.以树脂溶液涂覆支撑物表面,然后干燥、固化和炭化.涂膜-炭化的第一次循环不能有效地减小炭膜的缺陷.采用多次涂层、低冷却速率、低温和短时炭化(500℃,10min),可同时降低一定程度的缺陷.因此炭膜的选择性能显著提高.

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