[摘要]：Changes in the wettability and surface contact properties of polytetrafluoroethylene (PTFE) and tetrafluoroethylene-ethylene copolymer films modified in a direct current discharge at the cathode and anode depending on the storage time in air at room temperature and on heating to 200 degrees C have been studied. Changes in the chemical composition of film surfaces have been examined by X-ray photoelectron spectroscopy.
