MANUFACTURING METHOD OF PODERY CROSSLINKING POLYTETRAFLUOROETHYLENE

摘要

PROBLEM TO BE SOLVED: To provide a manufacturing method of powdery crosslinkable PTFE capable of easily crosslinking without aggregating PTFE powders. SOLUTION: A manufacturing method of powdery crosslinking polytetrafluoroethylene irradiates ionizing radiation by floating calcined polytetrafluoroethylene powder in gas of lower oxygen atmosphere heated at over the melting point of the calcined polytetrafluoroethylene to be crosslinked.