Preparation of fluorinated polyimide electrostatic-spinning fiber film and application in oil-water separation

The invention provides a preparation method for a fluorinated polyimide electrostatic-spinning fiber film, wherein the efficient oil-water separation fiber film can be manufactured through combination of a fluorinated polyimide material and an electrostatic-spinning technology. A structural unit of the selected PI polymer directly contains a fluorine element, and the fiber film with a high hydrophobic property can be prepared directly by the electrostatic-spinning technology; and the film shows superior performance in the field of oil-water separation. The preparation method provided by the invention has the advantages that material cost is low; the prepared fiber film has the superior performance and the high hydrophobic property; the fiber film shows a high flow capacity, high separation efficiency and high absorbability in oil-water separation aspects; and thus, the fiber film has promising application prospect in sewage treatment, crude oil leakage, etc. 本发明提供了种含氟聚酰亚胺静电纺丝纤维膜的制备方法，将含氟聚酰亚胺材料以及静电纺丝工艺相结合，制备出高