Fabrication of flexible and amphiphobic alumina mats by electrospinning

作者：Zhang, Pingping^*; Lu, Wenjuan; Wang, Yanfeng; Jiao, Xiuling; Chen, Dairong

来源：Journal of Sol-Gel Science and Technology, 2016, 80(3): 690-696.

DOI：10.1007/s10971-016-4160-7

• Al2O3 mats
• Amphiphobic
• Sol-gel preparation
• Electrospinning
• Fiber technology
• Surface modification

Flexible and amphiphobic alumina mats were fabricated by (heptadecafluoro-1, 1, 2, 2-tetradecyl)trimethoxysilane (FAS) modification of electrospun alumina mats. The alumina mats were obtained by the sol-gel method combined with an electrospinning process using aluminum nitrate nonahydrate (Al(NO3)(3)center dot 9H(2)O) and aluminum isopropoxide (Al(C3H7O)(3)) as raw materials, nitric acid and acetic acid as catalysts, water as the solvent, and polyvinylpyrrolidone (PVP) was applied to tune sol viscosity. When the content of PVP was 1.3 wt%, the alumina mat after modification had higher water contact angle of 134A degrees and oil contact angle of 122A degrees than those with other concentrations. In addition, the alumina mat exhibited a hydrophobic property in the pH range from 1 to 14. The good stability of the prepared fiber mat in weak acidic and alkaline solution may extend its application in many industrial fields. @@@ Flexible and amphiphobic alumina mat was fabricated by modification of electrospun alumina mat, which was prepared by the sol-gel method combined with an electrospinning process. @@@ [GRAPHICS] @@@ .

• 出版日期2016-12
• 单位山东省医学科学院; 济南大学; 山东大学