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利用碳氟等离子体处理ＰＥＴ，用变角ＸＰＳ和接触角进行了改性的表面分析，表明碳氟等离子体的处理可以改善ＰＥＴ表面的憎水性，而且ＣＦ４／ＣＨ４混合气体等离子体的效果更好．改性后的样品浸水后会使等离子体的处理效果很快下降，其主要原因是由于含氟基团在水的作用下翻转到ＰＥＴ的体相之中，但混合气体的等离子体的处理更有助于保持憎水的处理效果．
Fluorocarbon plasma treatment of PET with modified XPS and angle of contact surface modification analysis showed that the fluorocarbon plasma treatment can improve the hydrophobic surface of the PET, and CF4 / CH4 mixed gas plasma is better . The main reason that the modified sample immersed in water will decrease the plasma treatment effect is that the fluorine-containing groups flipped into the bulk phase of PET under the action of water. However, the plasma treatment of the mixed gas is more Helps to maintain hydrophobic treatment.