Wang Chih-Feng, Wang Wen-Ning, Lin Ching-Hsuan, Lee Kuo-Jung, Hu Chien-Chieh, Lai Juin-Yih
Graduate Institute of Applied Science and Technology, National Taiwan University of Science and Technology, Taipei 106, Taiwan.
Department of Materials Science and Engineering, I-Shou University, Kaohsiung 840, Taiwan.
Polymers (Basel). 2019 Jul 14;11(7):1183. doi: 10.3390/polym11071183.
Superhydrophobic materials have immense applications in the fields of industry and research. However, their durability is still a cause for concern. A facile method for preparing durable superhydrophobic films from carbon nanotubes (CNTs) and the main-chain type polybenzoxazine precursors is reported herein. We used probe ultrasonicator to prepare CNT/polybenzoxazine coatings. Compared with the general sonicating dispersion process, the dispersion time was greatly reduced from a few hours to 5 minutes and the prepared suspension exhibited film-forming characteristics well. The CNT/polybenzoxazine films, which do not contain any fluorinated compounds, exhibit remarkable durability against thermal treatment, organic solvents, corrosive liquids, and sandpaper abrasion, while retaining their superhydrophobicity. Furthermore, these CNT/polybenzoxazine films also showed durable superhydrophobicity after ultraviolet (UV) irradiation for 100 h. This CNT/polybenzoxazine film can be readily used for practical applications to make durable superhydrophobic coatings.
超疏水材料在工业和研究领域有广泛应用。然而,它们的耐久性仍是一个令人担忧的问题。本文报道了一种由碳纳米管(CNT)和主链型聚苯并恶嗪前驱体制备耐用超疏水薄膜的简便方法。我们使用探针超声仪制备CNT/聚苯并恶嗪涂层。与一般的超声分散过程相比,分散时间从几小时大幅缩短至5分钟,且制备的悬浮液表现出良好的成膜特性。不含任何氟化物的CNT/聚苯并恶嗪薄膜在热处理、有机溶剂、腐蚀性液体和砂纸磨损方面表现出显著的耐久性,同时保持其超疏水性。此外,这些CNT/聚苯并恶嗪薄膜在紫外线(UV)照射100小时后也显示出持久的超疏水性。这种CNT/聚苯并恶嗪薄膜可很容易地用于实际应用中,以制备耐用的超疏水涂层。