【摘要】 以聚砜为基膜材料,采用正交实验方法制备了平板超滤膜,然后在其表面涂敷改性聚二甲基硅氧烷后制得聚砜-硅橡胶复合型富氧膜,并研究了复合富氧膜性能与基膜成膜条件之间的关系。研究结果表明:当聚砜含量为20.15%,N-甲基吡咯烷酮含量为70.37%,聚乙二醇-600含量为9.48%时,制得的复合富氧膜的富氧浓度可达28.8%,渗透系数为7.02×10-4m3/(m2.S.MPa)。此外,还用扫描电镜观察复合富氧膜的基膜的结构特点。更多还原

【Abstract】 In the experiments,a stable base membrane was made by using polysulfone（PS） as membrane materials.Afterwards PDMS were coated on the base membrane as membrane materials to prepare a PDMS-POS composite membrane.A square-crossing table with four factors and three levels for the system was designed to study the connection between the preparationconditions of the PS base membrane and the capability of the oxygen-enriched composite membrane.Then preparation conditions were optimized.The results showed that flux and oxygen concentration of the composite membrane were 7.02×10^-4m³/m²·s·MPa and 28.8,when PS was 20.15%,NMP was 70.37%,PEG-600 was 9.48%.At last SEM was used to analyze the structure of the base membrane.更多还原