MODIFIED POLYTETRAFLUOROETHYLENE, METHOD FOR PREPARING THE SAME, ION EXCHANGE MEMBRANES USING THE SAME AND METHOD FOR PREPARING ION EXCHANGE MEMBRANES USING THE SAME

摘要

Through the present invention, it includes polytetrafluoroethylene modified to be hydrophilic by reacting a mixed solution for modification containing catechol and polyethyleneimine (PEI) with polytetrafluoroethylene; By applying a hydrocarbon-based polymer to the modified polytetrafluoroethylene, it is possible to provide an ion exchange membrane for a fuel cell that has excellent mechanical properties, improves dimensional stability, and prevents a decrease in ionic conductivity.