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在室温下,采用大气压等离子体射流对船体钢进行表面改性,通过水接触角测量、扫描电镜、X射线光电子能谱等分析测试方法研究了等离子体射流处理前后船体钢表面润湿性、表面形貌及化学特性的变化。研究结果表明,船体钢经大气压空气等离子体射流处理后在其表面引入了大量含氧基团,处理2s表面的水接触角就可以降到30°以下;处理后材料表面的亲水性受处理时间及放电电流的影响且在空气中放置时会出现老化效应,处理时间越长,老化效应越弱。
Atmospheric pressure plasma jet was used to modify the steel surface of the hull at room temperature. The wettability of the steel surface of the hull before and after the plasma jet treatment was studied by water contact angle measurement, scanning electron microscopy and X-ray photoelectron spectroscopy. Changes in morphology and chemical properties. The results show that the hull steels introduce a large amount of oxygen-containing groups on the surface of the steels by atmospheric pressure air plasma jet treatment, and the water contact angles of the surfaces treated for 2 s can be reduced below 30 °. The hydrophilicity of the treated surfaces is controlled Time and discharge current and the aging effect when placed in the air, the longer the treatment time, the weaker the aging effect.