张美玉,曲鹏,常树帆,刘晓林.静电纺丝法制备钛酸钡纳米纤维的工艺研究[J].稀有金属材料与工程,2020,49(2):623~628.[Zhang Meiyu,Qu Peng,Chang Shufan,Liu Xiaolin.Study on the Preparation of Barium Titanate Nanofibers by Electrospinning[J].Rare Metal Materials and Engineering,2020,49(2):623~628.]
静电纺丝法制备钛酸钡纳米纤维的工艺研究
投稿时间:2019-04-02  修订日期:2019-04-28
中文关键词:  溶胶-凝胶  静电纺丝法  BaTiO3纳米纤维  长径比
基金项目:国家自然科学基金资助(项目号51372014)
中文摘要:
      本文以乙酸钡和钛酸四丁酯为原料,以聚乙烯吡咯烷酮(PVP, Mw=1300000)为粘性剂,采用溶胶-凝胶法结合静电纺丝技术制备了高长径比的钛酸钡纳米纤维(BaTiO3 NFs),XRD结果表明,经900oC煅烧处理后的BaTiO3 NFs主相为立方相。首先,分别研究乙酸-乙醇-去离子水、乙酸-N,N-二甲基甲酰胺(DMF)-去离子水和乙酸-DMF-乙酰丙酮三种纺丝溶剂对纤维直径的影响,SEM结果表明,当PVP含量为8.7wt.%时,乙酸-DMF-乙酰丙酮为优化的纺丝溶剂,此时制备的BaTiO3 NFs直径最小为200nm,长径比最大为100:1;在此基础上,又采用正交试验法,考察了针头到接收器的距离、纺丝液流率和纺丝电压等纺丝参数对BaTiO3 NFs纤维长径比的影响,结果发现,当针头到接收器的距离为21cm、流率为0.5mL/h以及纺丝电压为21kV是优化的纺丝参数,由此制备的BaTiO3 NFs形貌较均匀,直径为200nm,长径比最大为125:1。
Study on the Preparation of Barium Titanate Nanofibers by Electrospinning
英文关键词:sol-gel  electrospinning  BaTiO3 nanofibers  aspect ratio
英文摘要:
      In this paper, barium acetate and tetrabutyl titanate were used as raw materials, and polyvinylpyrrolidone (PVP, Mw=1300000) was used as the viscous agent. The barium titanate nanoparticle with high aspect ratio was prepared by sol-gel method combined with electrospinning technology. XRD results showed that the main phase of BaTiO3 NFs was cubic phase after calcination at 900 °C. Firstly, this paper investgated the effects of acetic acid-ethanol-deionized water, acetic acid-DMF-deionized water and acetic acid-DMF-acetylacetone on the fibers diameter. The results of SEM showed that when the PVP content was 8.7wt.%, acetic acid-DMF-acetylacetone was the optimized spinning solvent. The BaTiO3 NFs prepared at this time had a minimum diameter of 200nm and an aspect ratio of 100:1. On the basis of the orthogonal test method, the influence of the spinning parameters such as the distance from the needle to the receiver, the flow rate and the spinning voltage on the aspect ratio of BaTiO3 NFs was investigated. It was found that the distance from the needle to the receiver was 21cm, flow rate of 0.5mL/h and spinning voltage of 21kV were optimized spinning parameters. The prepared BaTiO3 NFs have a uniform morphology, diameter of 200nm and aspect ratio ratio of 125:1.
作者单位E-mail
张美玉 北京化工大学 有机无机复合材料国家重点实验室 18810868951@163.com 
曲鹏 北京化工大学 有机无机复合材料国家重点实验室  
常树帆 北京化工大学 有机无机复合材料国家重点实验室  
刘晓林 北京化工大学 有机无机复合材料国家重点实验室 liuxl@mail.buct.edu.cn 
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