Abstract A new dip coating method has been developed for the fabrication of poly(methyl methacrylate) (PMMA) coatings on stainless steel. Despite the insolubility of PMMA in individual solvents, such as water and alcohol, concentrated solutions of high molecular mass PMMA were obtained in an isopropanol-water mixture. The new dip coating method offers processing advantages of the use of isopropanol-water co-solvent instead of toxic organic solvents. It was been demonstrated that adherent films can be obtained by this method from solutions of high molecular mass PMMA. Another important finding was the feasibility of deposition of composite coatings, containing bioceramics, such as TiO2, Al2O3, hydroxyapatite, and bioglass in the PMMA matrix. PMMA acted as a dispersant or co-dispersant for deposition or co-deposition of the inorganic particles. Potentiodynamic and impedance spectroscopy studies showed that PMMA coatings provided corrosion protection of stainless steel in 3 % NaCl solution. Composite PMMA-TiO2, PMMA-Al2O3, PMMA-hydroxyapatite, PMMA-bioglass and PMMA-hydroxyapatite-bioglass coatings provided enhanced corrosion protection, compared to pure PMMA coatings. The obtained composite coatings are promising for applications in biomedical implants.

中文翻译：

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使用异丙醇-水共溶剂通过浸涂沉积聚（甲基丙烯酸甲酯）和含有生物陶瓷和生物玻璃的复合材料

摘要 开发了一种新的浸涂方法，用于在不锈钢上制备聚甲基丙烯酸甲酯 (PMMA) 涂层。尽管 PMMA 在个别溶剂（如水和醇）中不溶，但在异丙醇 - 水混合物中获得了高分子量 PMMA 的浓缩溶液。新的浸涂方法提供了使用异丙醇-水共溶剂代替有毒有机溶剂的加工优势。已经证明通过这种方法可以从高分子量 PMMA 的溶液中获得粘附膜。另一个重要发现是在 PMMA 基质中沉积复合涂层的可行性，该涂层含有生物陶瓷，如 TiO2、Al2O3、羟基磷灰石和生物玻璃。PMMA作为分散剂或共分散剂用于无机颗粒的沉积或共沉积。动电位和阻抗谱研究表明，PMMA 涂层为不锈钢在 3% NaCl 溶液中提供了腐蚀保护。与纯 PMMA 涂层相比，复合 PMMA-TiO2、PMMA-Al2O3、PMMA-羟基磷灰石、PMMA-生物玻璃和 PMMA-羟基磷灰石-生物玻璃涂层提供增强的腐蚀保护。所获得的复合涂层有望用于生物医学植入物。