Czylkowski Dariusz, Hrycak Bartosz, Sikora Andrzej, Moczała-Dusanowska Magdalena, Dors Mirosław, Jasiński Mariusz
Institute of Fluid Flow Machinery, Polish Academy of Sciences, Fiszera 14, 80-231 Gdańsk, Poland.
Electrotechnical Institute, Division of Electrotechnology and Materials Science, M. Skłodowskiej-Curie 55/61, 50-369 Wrocław, Poland.
Materials (Basel). 2019 Jul 29;12(15):2418. doi: 10.3390/ma12152418.
The specific properties of an atmospheric pressure plasma make it an attractive tool for the surface treatment of various materials. With this in mind, this paper presents the results of experimental investigations of a polycarbonate (PC) material surface modification using this new type of argon microwave (2.45 GHz) plasma source. The uniqueness of the new plasma source lies in the shape of the generated plasma-in contrast to other microwave plasma sources, which usually provide a plasma in the form of a flame or column, the new ones provides a plasma in the shape of a regular plasma sheet. The influence of the absorbed microwave power and the number of scans on the changes of the wettability and morphological and mechanical properties of the plasma-treated PC samples was investigated. The mechanical properties and changes in roughness of the samples were measured by the use of atomic force microscopy (AFM). The wettability of the plasma-modified samples was tested by measuring the water contact angle. In order to confirm the plasma effect, each of the above-mentioned measurements was performed before and after plasma treatment. All experimental tests were performed with an argon of flow rate up to 20 L/min and the absorbed microwave power ranged from 300 to 850 W. The results prove the capability of the new atmospheric pressure plasma type in modifying the morphological and mechanical properties of PC surfaces for industrial applications.
大气压等离子体的特殊性质使其成为用于各种材料表面处理的有吸引力的工具。考虑到这一点，本文展示了使用这种新型氩微波（2.45吉赫兹）等离子体源对聚碳酸酯（PC）材料表面进行改性的实验研究结果。这种新型等离子体源的独特之处在于所产生等离子体的形状——与其他通常以火焰或柱状形式提供等离子体的微波等离子体源不同，新型的提供呈规则等离子体片形状的等离子体。研究了吸收的微波功率和扫描次数对经等离子体处理的PC样品的润湿性、形态和力学性能变化的影响。通过使用原子力显微镜（AFM）测量样品的力学性能和粗糙度变化。通过测量水接触角来测试等离子体改性样品的润湿性。为了确认等离子体效应，在等离子体处理前后都进行了上述各项测量。所有实验测试均在氩气流量高达20升/分钟且吸收的微波功率范围为300至850瓦的条件下进行。结果证明了这种新型大气压等离子体在改性PC表面的形态和力学性能以用于工业应用方面的能力。
