Using 2-propanol and water to prepare hydrophobic poly(methyl methacrylate)/poly(vinyl acetate) blend submicron fibers by electrospinning

• Main Authors: Hui-Yi Chang, 張慧怡
• Other Authors: Chao-Ching Chang
• Format: Others
• Language: zh-TW
• Published: 2019
• Online Access: http://ndltd.ncl.edu.tw/handle/7uv5vj

碩士 === 淡江大學 === 化學工程與材料工程學系碩士班 === 107 === In this study, it was adopted rubbing alcohol (2-propanol/water) as the solvent to prepare poly(methyl methacrylate) (PMMA) submicron fibers and PMMA/poly(vinyl acetate) (PVAc) blend submicron fibers by the electrospinning technique. The solvents commonly used to dissolve PMMA, such as acetone, tetrahydrofuran, chloroform, toluene, etc., are harmful and environmentally unfriendly. Therefore, the green and economical co-solvent system, 2-propanol + water, were employed. It was found that both PMMA and PMMA/PVAc solutions can be electrospun near room temperature to yield good quality fibers. By controlling the solution concentration and spinning parameters (e.g., voltage, diameter of needle, solution conductivity, etc.) fibers with diameters of 0.5~3 μm were obtainable. In addition, both electrospun PMMA and PMMA/PVAc mats were waterproof and demonstrated superb hydrophobicity with contact angles > 130 °, and the later has higher strength in terms of bendability.