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首页> 外文期刊>Journal of Adhesion Science and Technology: The International Journal of Theoredtical and Basic Aspects of Adhesion Science and Its Applications in All Areas of Technology >Analysis of adhesion in an aggressive environment of a protective paint coating on an aluminium alloy surface treated by air cold plasma
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Analysis of adhesion in an aggressive environment of a protective paint coating on an aluminium alloy surface treated by air cold plasma

机译：空冷等离子体处理铝合金表面防护漆膜在侵蚀性环境中的附着力分析

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摘要

2024 aluminium alloy is commonly used for the fuselage of aircraft or helicopters because of its high strength.The fuselage bears the weight of the movers of the aircraft and the oil or petrol tanks.It works where the climatic conditions are very harsh,i.e.very low temperature and salt fog,and in presence of aggressive chemical agents.The aluminium fuselage needs to be protected from water,heat and aggressive chemical agents,such as hydrocarbons,lubricating oils or salt fog,by a paint coating.It is important that the adhesion between the paint and the aluminium alloy remains strong for a long time.A complex and critical process is industrially used to enhance both wettability and adhesion of paint to the aluminium alloy.Cold plasma represents an efficient,non-polluting and economical alternative to clean and activate aluminium surfaces.The present work describes the possibility to use an aluminium alloy,pre-treated by cold plasma and then protected by a paint coating,in the presence of water or high temperature,as well as aggressive environmental conditions.Adhesion between the paint and the aluminium surface was characterized by a set of mechanical and physical-chemical tests.Many experimental tests were carried out in order to understand the interaction between plasma and workpiece material.The results obtained by the cold plasma treatment and the commonly used industrial process have been compared.Also,the nature of the relationship between wettability and adhesion was investigated.The results show that cold plasma allows to eliminate cleaning by a solvent and to reduce the quantity of Alodine 1200~R or XPD~R primer applied and,therefore,to reduce the use of polluting substances and the weight of the whole helicopter or aircraft.
机译：2024铝合金由于强度高而通常用于飞机或直升机的机身。机身承受飞机的动子和油箱或汽油箱的重量。它在气候条件非常恶劣，非常低的地方工作温度和盐雾，以及存在侵蚀性化学物质的情况。需要通过油漆涂层保护铝机身免受水，热和侵蚀性化学物质（例如碳氢化合物，润滑油或盐雾）的影响。涂料与铝合金之间的强度长期保持坚固。工业上使用复杂而关键的工艺来提高涂料的润湿性和附着力。冷等离子体代表了一种有效，无污染且经济的清洁和替代方法。活化铝表面。本工作描述了在冷的存在下使用铝合金的可能性，该铝合金经过冷等离子预处理，然后由油漆涂层保护。水或高温以及苛刻的环境条件。通过一系列机械和物理化学测试来表征油漆与铝表面之间的附着力。进行了许多实验测试以了解等离子体与工件材料之间的相互作用比较了通过冷等离子体处理和常用的工业过程获得的结果。此外，还研究了润湿性和附着力之间关系的性质。结果表明，冷等离子体可以消除溶剂清洗并减少溶剂的产生。使用数量适中的Alodine 1200〜R或XPD〜R底漆，从而减少污染物质的使用并减少整个直升机或飞机的重量。

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