He article hian PTFE surface modification atana flame treatment hman theih dan tur a zirchiang a, corona leh plasma treatment nena a nghawng dan a khaikhin bawk. Feasibility: flame hian PTFE hi a tidanglam thei a, mahse industry-ah erawh hman a ni tlem hle — himna atana hlauhawm (PTFE decompose releasing toxic HF and perfluoroisobutylene); performance limited (surface energy 30-35 mN/m chauh, boundary layer chak lo tak a siam). Hnathawh dan: meialh — transient high-temperature oxidation (>1000°C), etching tlem, oxygen group tlemte; corona — high-voltage discharge hian ozone/active oxygen a siam a, mild oxidation, energy density hniam chuan CF bonds a titawp thei lo; plasma — chakna sang tak nei particle/electron/free radical te hian CF bonds te chu direct in an cleave a, polar group (hydroxyl, carboxyl, amino) te chu an graft thin.