Structures and antifouling properties of low surface energy non-toxic antifouling coatings modified by nano-SiO_2 powder
Structures and antifouling properties of low surface energy non-toxic antifouling coatings modified by nano-SiO_2 powder作者机构：Laboratory of Marine Coatings Dalian Jiaotong University Dalian China
出 版 物：《Science China Chemistry》 (中国科学（化学英文版）)
年 卷 期：2008年第51卷第9期
页 面：848-852页
核心收录：
学科分类：081702[工学-化学工艺] 08[工学] 0817[工学-化学工程与技术]
基 金：High-Tech Research and Development Program of China (Grant No. 2004AA001520)
主 题：non-toxic antifouling coating low surface energy elastic modulus nano-SiO2
摘 要：Antifouling coatings are used to improve the speed and energy efficiency of ships by preventing or- ganisms, such as barnacles and weed, building up on the underwater hull and helping the ships movement through the water. Typically, marine coatings are tributyltin self-polishing copolymer paints containing toxic molecules called biocides. They have been the most successful in combating bio- fouling on ships, but their widespread use has caused severe pollution in the marine ecosystem. The low surface energy marine coating is an entirely non-toxic alternative, which reduces the adhesion strength of marine organisms, facilitating their hydrodynamic removal at high speeds. In this paper, the novel low surface energy non-toxic marine antifouling coatings were prepared with modified acrylic resin, nano-SiO2, and other pigments. The effects of nano-SiO2 on the surface structure and elastic modulus of coating films have been studied, and the seawater test has been carried out in the Dalian Bay. The results showed that micro-nano layered structures on the coating films and the lowest surface energy and elastic modulus could be obtained when an appropriate mass ratio of resin, nano-SiO2, and other pigments in coatings approached. The seawater exposure test has shown that the lower the sur- face energy and elastic modulus of coatings are, the less the marine biofouling adheres on the coating films.
维普期刊数据库
同方期刊数据库