The wet phase inversion process was used to prepare a kind of medical exhaust membranes with super-hydrophobicity and good gas permeability capacity by using non-woven fabric as the support base.The influences of solu...The wet phase inversion process was used to prepare a kind of medical exhaust membranes with super-hydrophobicity and good gas permeability capacity by using non-woven fabric as the support base.The influences of solution temperature,the evaporation time,the content of the non-solvent additive and the ratio of polyvinyl chloride(PVC)/polyacrylonitrile(PAN) on the gas permeability capacity and hydrostatic pressure of the resultant membranes were investigated.A kind of composite membrane with gas permeability about 2 800 mL/min and hydrostatic pressure of 36 kPa was obtained.In addition,the relationship between the properties and structure of the membrane was analyzed.展开更多
文摘The wet phase inversion process was used to prepare a kind of medical exhaust membranes with super-hydrophobicity and good gas permeability capacity by using non-woven fabric as the support base.The influences of solution temperature,the evaporation time,the content of the non-solvent additive and the ratio of polyvinyl chloride(PVC)/polyacrylonitrile(PAN) on the gas permeability capacity and hydrostatic pressure of the resultant membranes were investigated.A kind of composite membrane with gas permeability about 2 800 mL/min and hydrostatic pressure of 36 kPa was obtained.In addition,the relationship between the properties and structure of the membrane was analyzed.
