alcohl friendly hollow fiber membrane for pervaporation and manufacturing method of it

摘要

The present invention relates to a hollow fiber membrane for alcohol-philic pervaporation and a method of manufacturing the same, characterized in that a porous polymer hollow fiber membrane is coated with a lipophilic rubber-like polymer, and in particular, the lipophilic rubber-like polymer is It is characterized in that it is coated on the surface of the inner pores. According to the present invention, compared to the layer-type coating, the coating layer is not easily peeled off, and the coating material is embedded in the pores of the hollow fiber membrane, which is the supporting membrane, to increase the strength of the supporting membrane, thereby reducing the possibility of damage due to physical impact. When contacting a lipophilic organic compound that is intimate with the coating material, the volume of the coating layer increases inside the pores due to swelling, thereby increasing the degree of separation of the membrane.