Scolaro Cristina, Liotta Leonarda Francesca, Calabrese Carla, Marcì Giuseppe, Visco Annamaria
Department of Engineering, University of Messina, Contrada Di Dio, 98166 Messina, Italy.
Istituto per lo Studio dei Materiali Nanostrutturati (ISMN)-CNR, Via Ugo La Malfa 153, 90146 Palermo, Italy.
Polymers (Basel). 2023 May 25;15(11):2456. doi: 10.3390/polym15112456.
In this work, formulations of "environmentally compatible" silicone-based antifouling, synthesized in the laboratory and based on copper and silver on silica/titania oxides, have been characterized. These formulations are capable of replacing the non-ecological antifouling paints currently available on the market. The texture properties and the morphological analysis of these powders with an antifouling action indicate that their activity is linked to the nanometric size of the particles and to the homogeneous dispersion of the metal on the substrate. The presence of two metal species on the same support limits the formation of nanometric species and, therefore, the formation of homogeneous compounds. The presence of the antifouling filler, specifically the one based on titania (TiO) and silver (Ag), facilitates the achievement of a higher degree of cross-linking of the resin, and therefore, a better compactness and completeness of the coating than that attained with the pure resin. Thus, a high degree of adhesion to the tie-coat and, consequently, to the steel support used for the construction of the boats was achieved in the presence of the silver-titania antifouling.
在这项工作中，对实验室合成的、基于二氧化硅/二氧化钛氧化物上的铜和银的“环境兼容型”有机硅基防污涂料配方进行了表征。这些配方能够替代目前市场上现有的非生态防污涂料。这些具有防污作用的粉末的质地特性和形态分析表明，它们的活性与颗粒的纳米尺寸以及金属在基材上的均匀分散有关。同一载体上两种金属物种的存在限制了纳米物种的形成，因此也限制了均匀化合物的形成。防污填料的存在，特别是基于二氧化钛（TiO）和银（Ag）的填料，有助于实现树脂更高程度的交联，因此，涂层比纯树脂具有更好的致密性和完整性。因此，在存在银 - 二氧化钛防污剂的情况下，实现了对底漆以及因此对用于建造船只的钢支撑的高度附着力。
