| 固含量对聚砜膜透湿性能的影响 |
| |
| 引用本文： | 马文宝,张立志.固含量对聚砜膜透湿性能的影响[J].膜科学与技术,2009,29(4). |
| |
| 作者姓名： | 马文宝 张立志 |
| |
| 作者单位： | 华南理工大学,化工与能源学院,传热与节能教育部重点研究实验室,广州,510640 |
| |
| 基金项目： | 国家自然科学基金资助项目 |
| |
| 摘 要： | 选择廉价易得的聚砜为原料,以相转化法制备了聚砜膜.测量了膜的湿交换效率、传质系数、渗透速率、水蒸气吸附量、静态接触角等透湿性能;讨论了铸膜液中固含量的变化对膜透湿性能的影响.研究结果表明,膜水蒸气渗透的湿交换效率随着聚砜浓度的增大而降低;在保持铸膜液中聚砜不变的情况下,加入添加剂PVP可以使孔隙率增大,加入季铵盐能有效提高膜表面的亲水性,从而改善其透湿性能.
|
| 关 键 词： | 相转化法 孔隙率 亲水性 透湿性 |
Effects of solid content on the water vapor permeability of polysulfone membrane |
| |
| MA Wenbao,ZHANG Lizhi.Effects of solid content on the water vapor permeability of polysulfone membrane[J].Membrane Science and Technology,2009,29(4). |
| |
| Authors: | MA Wenbao ZHANG Lizhi |
| |
| Affiliation: | Key Laboratory of Heat Transfer and Energy Conservation of Ministry of Education;School of Chemical and Energy Engineering;South China University of Technology;Guangzhou 510640;China |
| |
| Abstract: | The polysulfone membrane was prapared by phase inversion method.The water vapor permeability of the membrane,such as water vapor exchange effectirveness,total mass transfer coefficients,and permeation rates of vapor,water vapor adsorption mass,and contact angle of the surface of PS membrane was measured.The effect of the PS solid content on water vapor permeability was investigated.The results show that,water vapor exchange effectiveness decrease with the increase in polysulfone content,when the content of ... |
| |
| Keywords: | phase inversion method porosity hydrophilicity water vapor permeability |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
|
