The aim of this study was to observe the atmospheric pressure plasma for polytetrafluoroethylene (PTFE) surface modification. The hydrophilicity of the effectively-anchored acrylic acid polymerization on the PTFE surfaces through atmospheric pressure plasma-grafted polymerization was examined using surface chemical composition analysis. The hydrophilic acrylic acid coating was created, via graft polymerization, onto a PTFE surface that was activated by the atmospheric pressure plasma. The photoemission plasma species in this plasma were identified by optical emission spectroscopy. The influences of atmospheric pressure plasma on the PTFE surface properties were also studied. We observed a significant increase in the surface free energy of the PTFE due to the atmospheric pressure plasma treatments. In this study, the changes in the chemical composition of this plasma-grafted, polymerized PTFE surfaces were also determined using FTIR, ESR, and XPS. It suggests that a specific level of surface wettability can be attained by tailor-designing the characteristics of the atmospheric pressure plasma-grafted, acrylic acid polymerization on the PTFE surface by adjusting the chemical composition and surface morphology, which are organized by the plasma surface activation and monomer concentration.

中文翻译：

---

常压等离子接枝聚合表面改性聚四氟乙烯

本研究的目的是观察用于聚四氟乙烯 (PTFE) 表面改性的大气压等离子体。使用表面化学成分分析检查通过常压等离子体接枝聚合在 PTFE 表面上有效锚定的丙烯酸聚合的亲水性。亲水性丙烯酸涂层通过接枝聚合形成到 PTFE 表面上，该表面被大气压等离子体激活。该等离子体中的光发射等离子体种类通过光发射光谱法进行鉴定。还研究了大气压等离子体对 PTFE 表面性能的影响。我们观察到由于大​​气压等离子体处理，PTFE 的表面自由能显着增加。在这项研究中，还使用 FTIR、ESR 和 XPS 测定了这种等离子体接枝聚合 PTFE 表面的化学成分变化。这表明，通过调整化学成分和表面形态，定制设计常压等离子体接枝丙烯酸聚合在 PTFE 表面的特性，可以实现特定水平的表面润湿性，这些特性由等离子体表面活化组织。和单体浓度。