基于先进的静电纺丝技术,旨在制备出高质量的聚偏氟乙烯(PVDF)纳米纤维膜,并系统地探究了影响纺丝工艺的关键因素。通过调控PVDF质量分数(12%)、溶剂体系中N,N-二甲基甲酰胺(DMF)与丙酮的质量比例(5∶5)、供液流速(1mL/h)、外加电场强度(18kV),以及针尖至接收装置(转辊)的间距(15cm),以确立并验证最佳的纺丝工艺参数组合。结果表明:在上述最优工艺条件下制备的PVDF纳米纤维膜,展现出了优异的微观结构形态,且其β晶相含量高达83.1%,这一发现不仅验证了工艺参数优化的有效性,也为后续纳米材料在特定领域(如过滤、传感、能量存储等)的应用提供了坚实的基础和广阔的前景。
The objective of this study was to prepare high-quality polyvinylidene fluoride (PVDF) nanofibrous membranes using advanced electrostatic spinning technology.The key factors affecting the spinning process were also systematically investigated.The mass concentration of PVDF was set at 12wt%,the mass ratio of N,N-dimethylformamide (DMF) to acetone in the solvent system was fixed at 5∶5,the flow rate of the supply liquid was maintained at 1mL/h,the strength of the applied electric field was set at 18kV,and the distance from the tip of the needle to the receiving device (rotating rollers) was set at 15cm.These parameters were regulated to establish and validate the optimal combination of spinning process parameters.The experimental results demonstrated that the PVDF nanofibrous membranes prepared under the aforementioned optimal process conditions exhibited an excellent microstructural morphology,with a β-crystalline phase content of up to 83.1%.This finding not only validated the effectiveness of the process parameter optimisation but also provided a solid foundation and broad prospects for the subsequent application of the nanomaterials in specific fields,such as filtration,sensing,and energy storage.
[1] 陈广州,陈刚,潘莉,等.基于PVDF/GO纳米复合薄膜的柔性压电传感器[J].微纳电子技术,2022,59(3):236-241.
[2] 谢蕊颖,刘雷鹏,吕生华,等.高储能PVDF基纳米复合材料研究进展[J].绝缘材料,2022,55(3):1-9.
[3] Pickford T,Gu X,Heeley E L,et al.Effects of an ionic liquid and processing conditions on the β-polymorph crystal formation in poly(vinylidene fluoride)[J].CrystEngComm,2019,21(36):5418-5428.
[4] 肖凯军,蔡胜,董瑞,等.旋涂法制备PVDF/PTFE复合膜及其性能研究[J].现代食品科技,2014,30(8):138-143.
[5] 王智鹏,杨雪珂,王幸尊,等.静电纺丝法制备氧化石墨烯/聚偏氟乙烯复合纳米纤维[J].国际纺织导报,2018,46(10):14-16.
[6] Wang X,Sun F,Yin G,et al.Tactile-sensing based on flexible PVDF nanofibers via electrospinning:a review[J].Sensors (Basel),2018,18(2):330.
[7] Kalimuldina G,Turdakyn N,Abay I,et al.A review of piezoelectric PVDF film by electrospinning and its applications[J].Sensors (Basel),2020,20(18):5214.
[8] 朱丹华,王文利,李志平,等.静电纺丝法制备聚偏氟乙烯(PVDF)及其复合纳米纤维的应用与发展前景[J].功能材料,2016,47(8):8058-8063.
[9] 袁志鹏.静电纺纤维材料的结构调控及其在生物医学领域的应用[D].北京:北京科技大学,2020.
[10] Zamani M,Shakhssalim N,Ramakrishna S,et al.Electrospinning:application and prospects for urologic tissue engineering[J].Front Bioeng Biotechnol,2020,8:579925.
[11] 查芳雯,陈炜,于德梅.导电聚合物/静电纺丝纤维复合材料在组织工程中的应用进展[J].功能材料,2021,52(11):11062-11066.
[12] Esmaeili A,Haseli M.Electrospinning of thermoplastic carboxymethyl cellulose/poly(ethylene oxide) nanofibers for use in drug-release systems[J].Materials Science and Engineering:C,2017,77:1117-1127.
[13] 程国平,丁一,郭淑娟.静电纺丝纤维作为牙周药物传递系统的研究进展[J].国际口腔医学杂志,2019,46(5):565-570.
[14] 李纯,孙丽霞,孙建华,等.静电纺丝法制备ZnO构建酪氨酸酶生物传感器检测邻苯二酚[J].化工进展,2020,39(7):2795-2801.
[15] He R,Li J,Chen M,et al.Tailoring moisture electroactive Ag/Zn@cotton coupled with electrospun PVDF/PS nanofibers for antimicrobial face masks[J].Journal of Hazardous Materials,2022,428:128239.
[16] Vahabi H,Wu H,Saeb M R,et al.Electrospinning for developing flame retardant polymer materials:current status and future perspectives[J].Polymer,2021,217:123466.
[17] 闫晓静,刘彤,陈超.静电纺丝功能性纳米纤维的研究进展[J].纺织报告,2022,41(10):31-32,57.
[18] Ki C S,Baek D H,Gang K D,et al.Characterization of gelatin nanofiber prepared from gelatin-formic acid solution[J].Polymer,2005,46(14):5094-5102.
[19] Kim M,Lee S,Kim Y I.Solvent-controlled crystalline beta-phase formation in electrospun P(VDF-TrFE) fibers for enhanced piezoelectric energy harvesting[J].Applied Physics Letters,2020,8(7):071109.
[20] Ki C S,Baek D H,Gang K D,et al.Characterization of gelatin nanofiber prepared from gelatin-formic acid solution[J].Polymer,2005,46(14):5094-5102.
[21] Zhang C,Yuan X,Wu L,et al.Study on morphology of electrospun poly(vinyl-alcohol) mats[J].European Polymer Journal,2005,41(3):423-432.
[22] Hossain M F,Gong R H,Rigout M.Optimization of the process variables for electrospinning of poly(ethylene oxide)-loaded hydroxypropyl-β-cyclodextrin nanofibres[J].Journal of the Textile Institute,2015,107(1):1-11.
[23] Matabola K P,Moutloali R M.The influence of electrospinning parameters on the morphology and diameter of poly(vinyledene fluoride) nanofibers-effect of sodium chloride[J].Journal of Materials Science,2013,48(16):5475-5482.
[24] 杜馨禹,魏亮,孙润军,等.工艺参数对PLA/CA复合纳米纤维形貌与直径的影响[J].合成纤维,2022,51(5):26-32.
[25] Parajuli D,Koomsap P,Parkhi A A,et al.Experimental investigation on process parameters of near-field deposition of electrospinning-based rapid prototyping[J].Virtual and Physical Prototyping,2016,11(3):193-207.
[26] 汪成伟.基于静电纺丝技术的纳米纤维制备工艺及其应用研究[D].苏州:苏州大学,2016.
[27] Xue J,Wu T,Dai Y,et al.Electrospinning and electrospun nanofibers:methods,materials,and applications[J].Chemical Reviews,2019,119(8):5298-5415.
[28] Tan S H,Inai R,Kotaki M,et al.Systematic parameter study for ultra-fine fiber fabrication via electrospinning process[J].Polymer,2005,46(16):6128-6134.
基金资助
中国纺织工业联合会“纺织之光”应用基础研究项目(J202303);陕西省教育厅专项科研计划项目(23JK0465);教育部“春晖计划”合作科研项目(202200545);西安市科技计划资助项目(22GXFW0035);2023年陕西省体育局常规课题项目(2023053)
PDF
