Han Ruijie, Zhan Yingyuan, Zhang Jiaxin, Song Xudong, Peng Jin, Cui Wei, Niu Kangmin
Henan Engineering Lab for Super-hard Grinding Composites, Henan University of Technology, Zhengzhou 450007, China.
School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, China.
Langmuir. 2024 Jul 17. doi: 10.1021/acs.langmuir.4c01945.
Silicone rubber has broad applications in the field of industrial engineering due to its stable physical and chemical properties. However, the superhydrophobic properties, of silicone rubber, especially large deformation superhydrophobic properties, were not satisfactory for many harsh application environments and complex engineering structures. Here, we report the preparation of superhydrophobic tensile designable silicone rubber composites by a mixed deposition process that included powder deposition and smoke deposition. The infrared test showed that the deposited powder from silicone rubber combustion was mainly composed of SiO and short chain siloxane. The mixed deposited surface with a rich micro-nanostructure, which was the key to the formation of superhydrophobic properties. The water contact angle (WCA) and sliding angle (SA) of coating surface could reach 157.6° and 5° ± 1°, respectively, and the tensile designability of superhydrophobic surface is closely related to the prestretched process. In addition, bounce tests, high temperature tests, and solvent resistance tests showed the application potential of modified silicone rubber composites in the field of engineering.
由于其稳定的物理和化学性质，硅橡胶在工业工程领域有着广泛的应用。然而，硅橡胶的超疏水性能，尤其是大变形超疏水性能，对于许多恶劣的应用环境和复杂的工程结构来说并不理想。在此，我们报道了通过包括粉末沉积和烟雾沉积的混合沉积工艺制备超疏水拉伸可设计硅橡胶复合材料。红外测试表明，硅橡胶燃烧产生的沉积粉末主要由SiO和短链硅氧烷组成。具有丰富微纳结构的混合沉积表面是形成超疏水性能的关键。涂层表面的水接触角（WCA）和滑动角（SA）分别可达157.6°和5°±1°，超疏水表面的拉伸可设计性与预拉伸工艺密切相关。此外，弹跳测试、高温测试和耐溶剂测试表明了改性硅橡胶复合材料在工程领域的应用潜力。
