摘要
为进一步增强防污活性,采用正交实验法合成了以纳米二氧化钛(nano-TiO2)为改性剂的低表面能海洋防污涂料,利用SEM和接触角检测仪对涂膜表面状态及其表面能进行了观察和测量,并对所合成的防污涂料进行了实海挂板试验。由正交实验优化出的最佳涂料组分为:呋喃改性硅丙树脂49%(质量分数)、nano-TiO211%(质量分数)和硅油6%(质量分数);SEM观察结果表明,nano-TiO2在所制得的涂膜中分散均匀;通过GS-X150测得的涂料最佳接触角为99.45°,其相应的表面能为21.73mJ/m2;由实海挂板试验发现,加入的nano-TiO2可使涂料的污损海生物附着量大大减少,其防污效果得到了明显提高。
In order to expand the broad-spectrum antifouling performance, a novel environmentally benign low surface energy coating was prepared by addition of nano-titanium oxide powder（nano-TiO2）and other pigments. The components, contact angles and antifouling properties of the coating were then investigated with the way of orthogonal experimentation, seawater exposure test and using SEM, GS-X150. The results showed that an optimized component has obtained to be 49wt% of furan modified organo-silicone acrylate, 11wt% of nano-TiO2 and 6 wt% silicone oil;the optimal contact angle achieved to be 99.45° and its corresponding surface energy to be 21.73mJ/m^2 ; the nano-TiO2 powder were distributed homogeneously in the coating system; finally, the seasite exposure test showed that adhesions of marine bio-fouling on the test panels coated with nano-TiO2 added paint decreased obviously, while its antifouling performance was improved significantly.
出处
《功能材料》
EI
CAS
CSCD
北大核心
2008年第5期853-856,共4页
Journal of Functional Materials
基金
国家高技术研究发展计划(863计划)资助项目(2004AA001520)
关键词
环保
纳米二氧化钛
低表面能
船舶
防污涂料
environmentally benign
nano-TiO2
low surface energy
seagoing vessels
antifoullng coating
