Flaky aluminum pigments with excellent corrosion resistance have found applications in diverse fields. In this study, a fluoropolymer has been incorporated in the aluminum pigment to effectively enhance its corrosion resistance, along with the improvement in the chemical resistance and thermal stability. Specifically, a uniform dense layer of poly(trifluoroethyl methacrylate) (PTFEMA) has been directly coated on the surface of the flaky aluminum pigment by in situ polymerization. The encapsulated aluminum pigment exhibited high stability upon dipping in the alkaline solution (pH = 13) due to protection imparted by the fluoropolymer layer. The morphology of the fluoropolymer layer on the surface of the aluminum pigment was characterized by scanning electron microscopy (SEM). Moreover, the thermal stability of the encapsulated aluminum pigment was analyzed by thermogravimetric analysis (TG). The structure and composition of the fluoropolymer layer were further characterized by Fourier transform infrared spectroscopy (FTIR) and X-ray photoelectron spectroscopy (XPS). The stability of the aluminum pigment in alkaline aqueous media was investigated via hydrogen evolution experiments. Overall, the corrosion resistance of the aluminum pigment encapsulated with fluoropolymer was observed to be markedly improved owing to the presence of the PTFEMA layer.

具有优异的耐腐蚀性的片状铝颜料已在各种领域中得到应用。在这项研究中，将氟聚合物掺入铝颜料中以有效增强其耐腐蚀性，同时改善耐化学性和热稳定性。具体而言，已经通过原位聚合将聚（甲基丙烯酸三氟乙酯）（PTFEMA）的均匀致密层直接涂覆在片状铝颜料的表面上。封装的铝颜料由于含氟聚合物层的保护作用，浸入碱性溶液（pH = 13）时表现出高稳定性。通过扫描电子显微镜（SEM）表征铝颜料表面上的含氟聚合物层的形态。而且，通过热重分析（TG）分析了包封的铝颜料的热稳定性。通过傅立叶变换红外光谱（FTIR）和X射线光电子能谱（XPS）进一步表征含氟聚合物层的结构和组成。通过氢析出实验研究了铝颜料在碱性水性介质中的稳定性。总的来说，由于存在PTFEMA层，观察到用氟聚合物包封的铝颜料的耐腐蚀性显着提高。通过氢析出实验研究了铝颜料在碱性水性介质中的稳定性。总的来说，由于存在PTFEMA层，观察到用氟聚合物包封的铝颜料的耐腐蚀性显着提高。通过氢析出实验研究了铝颜料在碱性水性介质中的稳定性。总的来说，由于存在PTFEMA层，观察到用氟聚合物包封的铝颜料的耐腐蚀性显着提高。