Paint protects the outer surface of ships. The antifouling component of paint prevents aquatic organisms from attaching to the surface of the ship. However, marine paints deteriorate with time. Therefore, periodic repainting is required. Repainting is performed via sandblasting, in which an abrasive is sprayed onto the surface of the paint. However, in this method, the base material of the paint is damaged. According to previous studies, when a painted surface is irradiated by plasma, the paint tends to peel off easily. Herein, we hypothesize that the paint is easily peeled off because of the thermal stress induced by the plasma during irradiation. To verify this hypothesis, we experimentally investigated the effect of thermal stress due to atmospheric pressure plasma. Results show that the streamer is a factor that easily peels off the paint. In addition, the effect of thermal stress due to the crosslinking reaction was confirmed via plasma irradiation. Furthermore, the effect of chipping due to intermittent discharge was explored by observing the painted surface via SEM.

中文翻译：

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热应力对大气等离子辐照引起的油漆剥落的影响

油漆保护船舶的外表面。油漆的防污成分可防止水生生物附着在船舶表面。然而，船用涂料会随着时间的推移而变质。因此，需要定期重新喷漆。重新喷漆是通过喷砂进行的，其中将磨料喷洒到油漆表面。然而，在这种方法中，涂料的基材被损坏。根据以往的研究，当涂漆表面受到等离子照射时，油漆容易脱落。在这里，我们假设由于等离子体在辐射过程中引起的热应力，油漆很容易剥落。为了验证这一假设，我们通过实验研究了大气压等离子体引起的热应力的影响。结果表明，流光是容易剥落油漆的因素。此外，通过等离子体照射证实了交联反应引起的热应力的影响。此外，通过扫描电镜观察涂漆表面，探索了由于间歇放电造成的碎屑影响。