Definitive screening design is put to test for the development of plasma polymeric silicon organic coatings as protective coatings for polyethylene terephthalate (PET) against the influence of strong NaOH alkaline solutions (c = 0.5 mol/L). To evaluate the protection performance of the coatings, oxygen transmission rate measurements are employed after washing experiments under application-oriented conditions. Parameter influences on the maintained OTR values after exposure to NaOH solution are derived by statistical correlation and used for optimization. Significant optimization is achieved for two coatings, that are subjected to long term performance evaluation and characterized in regard to their topography as well as atomic and chemical composition in dripping tests. Long term stability of two optimized coatings was lost after 50 minutes of exposure. Optimization was shown to be primarily achieved by an increase of the microwave pulse length. Both coatings showed similar atomic compositions and functional groups. Coatings System B showed chemical integrity of its functional groups up to 120 min of exposure to NaOH. Therefore, a denser structure with few pinholes was attributed, that was reinforced by lower roughness values. Defect and pin hole free coating structure as well as a high carbon content could be identified as beneficial properties.

最终筛选设计用于测试等离子体聚合硅有机涂层的开发，作为聚对苯二甲酸乙二醇酯 (PET) 的保护涂层，以抵抗强 NaOH 碱性溶液 (c = 0.5 mol/L) 的影响。为了评估涂层的保护性能，在面向应用的条件下进行洗涤实验后，采用氧气透过率测量。通过统计相关性得出参数对暴露于 NaOH 溶液后保持的 OTR 值的影响并用于优化。对两种涂层进行了显着优化，这些涂层经过长期性能评估，并在滴落测试中对其形貌以及原子和化学成分进行了表征。暴露 50 分钟后，两种优化涂层的长期稳定性丧失。显示优化主要是通过增加微波脉冲长度来实现的。两种涂层都显示出相似的原子组成和官能团。涂料体系 B 显示其官能团的化学完整性长达 120 分钟暴露于 NaOH。因此，归因于具有较少针孔的更密集的结构，并通过较低的粗糙度值得到加强。无缺陷和无针孔的涂层结构以及高碳含量可以被认为是有益的特性。涂料体系 B 显示其官能团的化学完整性长达 120 分钟暴露于 NaOH。因此，归因于具有较少针孔的更密集的结构，并通过较低的粗糙度值得到加强。无缺陷和无针孔的涂层结构以及高碳含量可以被认为是有益的特性。涂料体系 B 显示其官能团的化学完整性长达 120 分钟暴露于 NaOH。因此，归因于具有较少针孔的更密集的结构，并通过较低的粗糙度值得到加强。无缺陷和无针孔的涂层结构以及高碳含量可以被认为是有益的特性。