| 摘要 |
The purpose of the present invention is to provide a hollow fiber membrane module in which a hollow fiber membrane is embedded, wherein the hollow fiber membrane includes a polysulfone polymer and a hydrophilic polymer, the hollow fiber membrane satisfies (A) and (B), and the amount of an effluent contained in a liquid obtained by circulating, for four hours at 200mL/min, super-pure water which was heated to 37°C is no more than 1.0mg/m2, such circulation being carried out in a flow path on an inner surface of the hollow fiber membrane. (A) An insoluble element when the hollow fiber membrane is dissolved in N,N-dimethylacetamide is less than 3 mass% of the total mass% of the hollow fiber membrane. (B) In a humid state, a flexible layer exists on the surface of a functional layer of the hollow fiber membrane, and the thickness of the flexible layer is at least 7nm. The present invention provides a hollow fiber membrane module in which embedded is a hollow fiber membrane that includes a polysulfone polymer and a hydrophilic polymer. The hollow fiber membrane module is configured so that changes in functionality due to hydrophilic polymer crosslinking are suppressed, there is little effluent, and biocompatibility is high. |
