摘要
以107#硅橡胶和含氟聚硅氧烷的共混胶为基胶,通过独创梯度涂覆工艺制备出超疏水涂层。首先在基胶表面喷涂120#溶剂油,喷撒改性后由纳米SiO_2及碳酸钙,玻璃微珠组成的多级复合粒子,然后喷涂溶剂油,利用溶剂油对橡胶的溶解性及其挥发特性,制得新型梯度超疏水涂料。采用扫描电子显微镜(SEM)和接触角测定仪对涂层的微观形貌和疏水特性进行分析。SEM结果表明,该涂料表面形成了类似荷叶乳突的多级微-纳米结构;疏水角测试结果表明,水滴静态接触角平均值为157.5°,最高可达161.9°,滚动角仅为2°。与传统的疏水材料及工艺相比,该涂料成本低,制作工艺简单,有望在很多超疏水领域得到工业化应用。
An original gradient coating method was employed to prepare super-hydrophobic coatings,using 107#silicone rubber and fluorinated polysiloxane blendes as basal glue.At first,120#solvent oil was sprayed on the surface of basal glue,followed by sprinkling the multi-stage composite particles.Then,solvent oil was sprayed again and the super-hydrophobic coating was obtained by applied the solubility and volatility of solvent oil.SEM result indicated that multi-stage micro-nano-structure was formed which was similar with papillae of lotus leaf.Hydrophobic test result showed that the average and maximum static contact angle were 157.5°and 161.9°,respectively.The roll angle was only 2°.Compared with conventional hydrophobic materials and processes,the low cost and simple production process of this coating made it expected to be applied in many industrialized super-hydrophobic fields.
出处
《化工新型材料》
CAS
CSCD
北大核心
2015年第12期222-224,共3页
New Chemical Materials
基金
河北省普通高等学校青年拔尖人才项目(BJ2014030)
国家、河北省、河北联合大学大学生创新创业训练计划项目(201310081019)
关键词
超疏水
接触角
仿荷叶结构
梯度涂覆工艺
super-hydrophobicity
contact angle
lotus leaf structure
gradient coating process
