作者: Xiaohui Li , Kaiqiang Zhang , Yunhui Zhao , Kongying Zhu , Xiaoyan Yuan
DOI: 10.1039/C5RA15920B
关键词:
摘要: UV-curable films composed of thiol-terminated fluorosilicone methacrylate triblock copolymers (PDMS-b-(PFMA-SH)2), thiol-functionalized PDMS (PDMS-SH) and octavinyl POSS (OVPOSS) were developed for the purpose icephobic application. The PDMS-b-(PFMA-SH)2 firstly synthesized via reversible addition–fragmentation chain transfer polymerization dodecafluoroheptyl (12FMA) or 2-perfluorooctylethyl (17FMA), followed by thiol-modification end groups. results differential scanning calorimetry X-ray diffraction revealed presence perfluoroalkyl side groups in P17FMA as presented crystalline structure. These endowed P17FMA-containing with higher receding contact angles (100.2–113.5°) compared P12FMA-containing films. In icephobicity investigations prepared films, it was found that rebound impacting droplet influenced angle, surface roughness, temperature film surface. Water droplets could from horizontal tilted (30° 45°) surfaces down to −15 °C, allowing dewetting before water froze, while adhered surfaces. Moreover, ice shear strengths all lower than 210 kPa, only about 15% value on bare aluminum Therefore, be a potential candidate applications.