Marabotti Ilaria, Morelli Andrea, Orsini Lorenzo M, Martinelli Elisa, Galli Giancarlo, Chiellini Emo, Lien Einar M, Pettitt Michala E, Callow Maureen E, Callow James A, Conlan Sheelagh L, Mutton Robert J, Clare Anthony S, Kocijan Aleksandra, Donik Crtomir, Jenko Monika
Dipartimento di Chimica e Chimica Industriale, UdR Pisa - INSTM, Universita di Pisa, Italy.
Biofouling. 2009;25(6):481-93. doi: 10.1080/08927010902913187.
Fouling-release coatings were prepared from blends of a fluorinated/siloxane copolymer with a poly(dimethyl siloxane) (PDMS) matrix in order to couple the low modulus character of PDMS with the low surface tension typical for fluorinated polymers. The content of the surface-active copolymer was varied in the blend over a broad range (0.15-10 wt % with respect to PDMS). X-ray photoelectron spectroscopy depth profiling analyses were performed on the coatings to establish the distribution of specific chemical constituents throughout the coatings, and proved enrichment in fluorine of the outermost layers of the coating surface. Addition of the fluorinated/siloxane copolymer to the PDMS matrix resulted in a concentration-dependent decrease in settlement of barnacle, Balanus amphitrite, cyprids. The release of young plants of Ulva, a soft fouling species, and young barnacles showed that adhesion strength on the fluorinated/siloxane copolymer was significantly lower than the siloxane control. However, differences in adhesion strength were not directly correlated with the concentration of copolymer in the blends.
防污涂料由氟化/硅氧烷共聚物与聚二甲基硅氧烷（PDMS）基体的共混物制备而成，目的是将PDMS的低模量特性与氟化聚合物典型的低表面张力相结合。在共混物中，表面活性共聚物的含量在很宽的范围内变化（相对于PDMS为0.15 - 10 wt%）。对涂层进行了X射线光电子能谱深度剖析分析，以确定特定化学成分在整个涂层中的分布，并证明涂层表面最外层氟元素富集。向PDMS基体中添加氟化/硅氧烷共聚物导致藤壶（Balanus amphitrite）无节幼虫附着量呈浓度依赖性下降。对软污损物种石莼幼苗和藤壶幼体的释放实验表明，在氟化/硅氧烷共聚物上的附着强度明显低于硅氧烷对照。然而，附着强度的差异与共混物中共聚物的浓度没有直接关联。
