Parchovianský Milan, Parchovianská Ivana, Švančárek Peter, Motz Günter, Galusek Dušan
Centre for Functional and Surface Functionalised Glass, Alexander Dubček University of Trenčín, Študentská 2, 911 50 Trenčín, Slovakia.
Joint Glass Centre of the Institute of Inorganic Chemistry Slovak Academy of Sciences, Alexander Dubček University of Trenčín and Faculty of Chemical and Food Technology Slovak University of Technology, Študentská 2, 911 50 Trenčín, Slovakia.
Materials (Basel). 2020 Jan 31;13(3):629. doi: 10.3390/ma13030629.
In this work, the influence of different cleaning procedures on adhesion of composite coatings containing passive ceramic and commercial glasses was investigated. Two compositions (C2c, D2-PP) of double-layer polymer-derived ceramic (PDC) coating systems, composed from bond coat and a top coat, were developed. In order to obtain adherent coatings, stainless steel substrates were cleaned by four different cleaning procedures. The coatings were then deposited onto the steel substrate via spray coating. Pretreatment by subsequent ultrasonic cleaning in acetone, ethanol and deionised water (procedure U) was found to be the most effective, and the resultant C2c and D2-PP coatings, pyrolysed at 850 °C, indicated strong adhesion without delamination or cracks, propagating at the interface steel/bond coat. In the substrate treated by sandblasting and chemical etching, small cracks in the bond coat were observed under the same pyrolysis conditions. After oxidation tests, all coatings, except for those subjected to the U-treated substrates, showed significant cracking in the bond coat. The D2-PP coatings were denser than C2c, indicating better protection of the substrate.
在本研究中，研究了不同清洗工艺对含有惰性陶瓷和商用玻璃的复合涂层附着力的影响。开发了由粘结层和面层组成的双层聚合物衍生陶瓷（PDC）涂层系统的两种成分（C2c、D2-PP）。为了获得附着力良好的涂层，采用四种不同的清洗工艺对不锈钢基材进行清洗。然后通过喷涂将涂层沉积在钢基材上。结果发现，随后在丙酮、乙醇和去离子水中进行超声清洗（工艺U）预处理最为有效，在850℃下热解得到的C2c和D2-PP涂层在钢/粘结层界面处显示出强附着力，无分层或裂纹。在经过喷砂和化学蚀刻处理的基材上，在相同的热解条件下，粘结层中观察到小裂纹。经过氧化试验后，除了经过U处理的基材上的涂层外，所有涂层的粘结层都出现了明显的裂纹。D2-PP涂层比C2c涂层更致密，表明对基材的保护更好。
