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首页> 外文会议>International Conference on Metallurgy and Materials >ENA STUDY OF POSSIBLE IMPROVEMENT IN FORMULATION DESIGN PRACTICES FOR OPTIMIZED PERFORMANCE OF Zn AND Al PIGMENTED EPOXY COATINGS
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ENA STUDY OF POSSIBLE IMPROVEMENT IN FORMULATION DESIGN PRACTICES FOR OPTIMIZED PERFORMANCE OF Zn AND Al PIGMENTED EPOXY COATINGS

机译：ENA研究制剂设计实践的可能改进，用于优化Zn和Al着色环氧涂料的性能

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The effect of the ratio of the pigment volume concentration (PVC) to the critical pigment concentration (CPVC) belongs to well-known formulation design practices for optimized performance of pigmented organic coatings. The influence of this ratio in Zn an Al pigmented epoxy coatings on delamination kinetics of underlying steel has been investigated by electrochemical noise analysis (ENA) during 168 hrs immersion tests in 0.05 M NaCI. Two different Zn and Al pigmented epoxy coatings were prepared with different PVC/CPVC values but with the same vol. % Zn:Al ratio as well as with the same binder and hardener types applied. ENA was used to provide information about possible effect of PVC/CPVC values on delaminated corroding area time development in tested coating/steel systems. It has been concluded that in these systems it is recommended the use of certain low PVC/CVPC value in order to obtain high resistance to possible coating delamination from the metallic surface.
机译：颜料体积浓度（PVC）与临界颜料浓度（CPVC）的效果属于着名的配方设计实践，用于优化着色有机涂层的性能。 在0.05M NaCl的168小时浸渍试验期间，通过电化学噪声分析（ENA）研究了该比例在Zn A1型溶液中的分层动力学对分层动力学的影响。 用不同的PVC / CPVC值制备两种不同的Zn和Al着色的环氧树脂涂料，但具有相同的体积。 ％Zn：Al比以及施加相同的粘合剂和硬化剂类型。 ENA用于提供有关PVC / CPVC值对经测试涂层/钢系统中分层腐蚀区域时间显影的可能影响的信息。 已经得出结论，在这些系统中，建议使用某些低PVC / CVPC值，以便从金属表面获得高抗性涂层分层。

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