PAN纤维复合炭膜制备及油水分离性能研究  

Preparation and oil-water separation performance of PAN fiber composite carbon membranes

作　　者：张迎 洪学谦 赵爽[1] 吴永红[1] 张兵[1] ZHANG Ying;HONG Xue-qian;ZHAO Shuang;WU Yong-hong;ZHANG Bing(School of Petrochemical Engineering,Shenyang University of Technology,Liaoyang 111003,Liaoning Province,China)

机构地区：[1]沈阳工业大学石油化工学院,辽宁辽阳111003

出　　处：《化学工程》2022年第11期6-9,25,共5页Chemical Engineering(China)

基　　金：辽宁省自然科学基金资助项目(2021-MS-238);辽宁省教育厅科研项目(LJGD2020002);沈阳市中青年科技创新人才项目(RC200325)。

摘　　要：为了实现对乳化油水的有效分离,以聚丙烯腈纤维(PANf)掺杂酚醛树脂为前驱体,经成型和热解制备了复合炭膜。采用扫描电镜、X射线衍射、泡压法、接触角、万能测试机等表征手段分别对炭膜表面形貌、晶体结构、孔隙结构、表面亲水性和机械强度进行了表征。考察了PANf用量对炭膜微结构、孔隙结构、亲水性、机械性和油水分离性的影响。研究显示:PANf均匀分散在炭膜基体内,实现优化孔结构、机械强度与亲水性的作用。该复合炭膜能在水渗透通量达100000 kg/(m^(2)·h·MPa)以上时有效截留水中乳化油。In order to achieve the effective separation of emulsified oil and water,composite carbon membranes were prepared by molding and pyrolysis using polyacrylonitrile fiber(PANf)doped phenolic resin as precursor.The surface morphology,crystal structure,pore structure,surface hydrophilicity and mechanical strength of carbon membranes were characterized by the techniques of scanning electron microscope,X ray diffraction,bubble pressure method,contact angle,universal tester,respectively.The effects of PANf amount on the microstructure,pore structure,hydrophilicity,mechanical properties and oil-water separation performance of carbon membranes were investigated.The research shows that PANf is uniformly dispersed in the carbon membrane matrix,which can optimize the pore structure,mechanical strength and hydrophilicity.The composite carbon membrane can effectively reject emulsified oil in water when the water permeation flux is over 100000 kg/(m^(2)·h·MPa).

关 键 词：酚醛树脂 聚丙烯腈纤维 炭膜 热解 

分 类 号：TQ028.8[化学工程]