有机硅改性丙烯酸酯涂层的微/纳凸柱状织构化及其防污性能  

Fabrication and antifouling property of acrylic ester modified by siloxane coatings with regular micro/nano-pillar textures

作　　者：许季海[1,2] 赵文杰 周成旭[3] 张昕 李赫 薛群基 乌学东 

机构地区：[1]中国科学院宁波材料技术与工程研究所,中国科学院海洋材料与防护技术重点实验室,宁波315201 [2]中国科学院大学,北京100049 [3]宁波大学海洋学院,宁波315211

出　　处：《科学通报》2013年第10期946-953,共8页Chinese Science Bulletin

基　　金：浙江省"海洋防护材料与工程技术"科技创新团队(2011R50006);宁波市"先进涂层与薄膜材料"科技创新团队(2011B31023);中国科学院宁波材料研究所所长基金(20120103);中国博士后科学基金(2012T50564);宁波市自然科学基金(2011A610139;2011A610098);国家科技支撑计划(2011BAD13B08)资助

摘　　要：经过"硅片模板-PDMS模板-目标涂层"的制备过程,实现了具有规则微/纳凸柱状织构表面的有机硅改性丙烯酸酯涂层的制备.利用傅里叶红外光谱仪(FTIR)、场发射扫描电子显微镜(SEM)、原子力显微镜(AFM)和接触角仪系统表征了所制备涂层的物理化学性能,并以绿藻门的丝藻和硅藻门的舟形藻作为研究对象,考察了涂层的防污性能.研究结果表明,织构化涂层表面的接触角随微/纳凸柱状织构的表面覆盖率增加而增加,而丝藻和舟形藻的附着量随着微/纳凸柱状织构化表面覆盖率的增加而减小.当微/纳凸柱状织构表面覆盖率为21%时,相对于无织构化涂层,丝藻的附着量降低了82%,舟形藻的附着量降低了73%.通过对比两种藻类与微/纳凸柱之间距离的大小并结合织构化涂层的润湿行为,分析了织构化涂层有效防除丝藻和舟形藻附着的原因和机理.The acrylic ester modified by siloxane coating with regular micro/nano-pillar textures were successfully prepared by the process of ＂Silicon wafer template-PDMS template-target coating＂. The physical and chemical properties of coatings were systematically characterized by FTIR, SEM, AFM and contact angle measurements. Moreover, the antifouling properties of the as-prepared coatings to the Ulothrix and Navicula were investigated in this study. The results show that the coatings became more hydrophobic with the increasing of surface roughness, and the settlement of Ulothrix became less and less with the increasing of pillars area density on the surface. The coating with 21% coverage of micro/nano-pillars reduced settlement by 82% of Ulothrix and 73% of Navicula compared with fiat film. Finally, Compared the size of Ulothrix, Navicula and distance of pillars and related to wetting behaviors, the mechanisms of the coating can effectively control the settlement of Ulothrix and Navicula were analyzed.

关 键 词：有机硅改性丙烯酸酯 微 纳凸柱状织构 润湿性 丝藻 舟形藻 防污性能 

分 类 号：TS195.6[轻工技术与工程—纺织化学与染整工程]