聚醚砜多孔膜及复合多孔膜制备的研究

The Study on Preparation of Polyethersulfone Porous Membrane and Composite Porous Membrane

以聚醚砜(PES)为成膜材料,采用对乳液体系进行超声的方法,制备PES多孔膜和无机纳米粒子-PES复合多孔膜,并探究了无机纳米粒子的种类、表面活性剂、超声强度、超声时间等因素对膜成型及孔结构的影响。结果表明,不同类型的无机纳米粒子与PES制备的复合膜结构会有差异,超声强度会明显影响无机纳米粒子在聚合物中的分散以及孔结构的形成,表面活性剂的加入及超声时间则会直接影响膜的生成。

Taking polyethersulfone(PES)as the membrane material,PES porous membrane and inorganic nanoparticle-PES composite membrane were prepared by ultrasonic treatment on emulsion system.The effects of inorganic nanoparticles,surfactants,ultrasonic intensity and ultrasonic time on the formation of the membrane and the pore structure were investigated.The results show that there are differences between different types of inorganic nanoparticles and PES composite membrane.The ultrasonic intensity obviously could affect the dispersion of inorganic nanoparticles in polymer and the formation of porous structure.The addition of surfactant and ultrasonic time will directly affect the formation of membrane.