以聚四氟乙烯(PTFE)悬浮液为疏水性原料, 聚乙烯醇(PVA)为粘结剂, 采用静电纺丝法制备了质量比不同的PTFE/PVA纤维膜, 研究了PVA与PTFE质量比对纤维膜形貌、结构及疏水性能的影响。通过扫描电子显微镜、光学接触角测量仪、傅里叶变换红外光谱仪和X射线光电子能谱仪对纤维膜的表面形貌及疏水性能进行了表征和测试。结果表明:当PVA与PTFE质量比为1∶6时, 制备的纤维膜形貌良好且水接触角高达160°, 该纤维膜在超疏水领域具有广阔的应用前景。
Superhydrophobic PTFE/PVA fiber membranes with different mass ratios were prepared by electrostatic spinning using polytetrafluoroethylene (PTFE) suspension as hydrophobic raw material and polyvinyl alcohol (PVA) as binder.The effects of the different mass ratios of PVA and PTFE on the morphology, structure and hydrophobic properties of PTFE/PVA fiber membranes were studied.The surface morphology and hydrophobic properties of the fiber membranes were characterized and tested by scanning electron microscopy, optical contact angle measurement, Fourier transform infrared spectrometer and X-ray photoelectron spectroscopy.The results showed that when the mass ratio of PVA to PTFE was 1∶6, the prepared PTFE fiber membrane had good morphology and a high water contact angle of 160°, indicating that PTFE fiber film had broad application prospects in the field of superhydrophobic.
[1] 李国滨,刘海峰,李金辉,等.超疏水材料的研究进展[J].高分子材料科学与工程,2020(12):142-150.
[2] Huang Yan,Xiao Changfa,Huang Qinglin,et al.Robust pre-paration of tubular PTFE/FEP ultrafine fibers-covered porous membrane by electrospinning for continuoushighly effective oil/water separation[J].Journal of Membrane Science,2018,568:87-96.
[3] Musikavanhu B,Hu Z J,Dzapata R L,et al.Facile method for the preparationof superhydrophobic cellulosic paper[J].Applied Surface Science,2019,496:143648.
[4] Wang Yuanfeng,Lai Chuilin,Wang Xiaowen,et al.Beads-on-string structured nanofibers for smart and reversible oil/water separation with outstanding antifouling property[J].ACS Applied Materials & Interfaces,2016,8(38):25612-25620.
[5] Min-Kyu Lee,Cheonil Park,Tae-Sik Jang,et al.Enhanced mechanical stability of PTFE coating on nano-roughened NiTi for biomedical applications[J].Materials Letters,2018,216:12-15.
[6] Huang Qinglin,Huang Yan,Xiao Changfa,et al.Electrospun ultrafine fibrous PTFE-supported ZnO porous membrane with self-cleaning function for vacuum membrane distillation[J].Journal of Membrane Science,2017,534:73-82.
[7] Nishimoto S,Bhushan B,Bhushan B,et al.Bioinspired self-cleaning surfaces with superhydrophobicity.superoleophobicity and superhydrophilicity[J].RSC Advances,2012,3(3):671-690.
[8] Zhu Zhigao,Wang Wei,Qi Dianpeng,et al.Polymer membrane with revivability for efficient oily-water remediation[J].Advanced Materials,2018,30(30):1801870.
[9] García-Mateos F J,Berenguer R,Valero-Romero M J,et al.Phosphorus functionalizationfor the rapid preparation of highly nanoporous submicron-diameter carbon fibers by electrospinning of lignin solutions[J].Journal of Materials Chemistry A,2018,6(3):1219-1233.
[10] Ganesh V A,Ranganath A S,Sridhar R,et al.Cellulose acetate-poly(N-isopropylacrylamide)-based functional surfaces with temperature-triggered switchable wettability[J].Macromolecular Rapid Communications,2015,36(14):1368-1373.
[11] He Hongcai,Zhang Chuanbo,Liu Tao,et al.Thermoelectric-photoelectric composite nanocables induced a larger efficiency in dye-sensitized solar cells[J].Journal of Materials Chemistry A,2016,4(24):9362-9369.
[12] 张文欣,陈华艳,吴朝廷,等.巯基烯烃点击反应制备超疏水聚偏氟乙烯中空纤维膜及其加湿性能[J].高分子材料科学与工程,2021(10):167-173.
[13] 刘毛林,王永鹏,刘梦竹,等.含氟长链SiO2纳米小球构筑聚芳醚酮超疏水薄膜材料及其性能研究[J].化工新型材料,2022,50(2):110-113;118.
[14] Leonard Tijing D,Yun Chul Woo,Wang-Geun Shim,et al.Superhydrophobic nanofiber membrane containing carbon nanotubes for high-performance direct contact membrane distillation[J].Journal of Membrane Science,2016,502:158-170.
[15] Wang Shuqi,Wang Yaming,Zou Yongchun,et al.A self-adjusting PTFE/TiO2 hydrophobic double-layer coating for corrosion resistance and electrical insulation[J].Chemical Engineering Journal,2020,402:126116.
[16] Porto C L,Di Mundo R,Veronico V,et al.Easy plasma nano-texturing of PTFE surface:from pyramid to unusual spherules-on-pyramid features[J].Applied Surface Science,2019,483:60-68.
基金资助
国家自然科学基金(51865055;52161017);新疆维吾尔自治区天山英才计划资助项目(201720025)
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