Fabrication of nanofibres via polyvinylpyrrolidone by sol–gel method and electro-spinning technique

Zhaobing Cai; Guo Jin; Xuifang Cui; Wei Zheng; Erbao Liu; Yang Wang; Na Tan

Fabrication of nanofibres via polyvinylpyrrolidone by sol–gel method and electro-spinning technique

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Author(s): Zhaobing Cai ¹ ; Guo Jin ¹ ; Xuifang Cui ¹ ; Wei Zheng ¹ ; Erbao Liu ¹ ; Yang Wang ¹ ; Na Tan ¹
- Affiliations: 1: Key Laboratory of Superlight Material and Surface Technology of Ministry of Education, College of Material Science and Chemical Engineering, Institute of Surface/Interface Science and Technology, Harbin Engineering University, Harbin 150001, People's Republic of China
Source: Volume 10, Issue 3, March 2015, p. 179 – 182
DOI: 10.1049/mnl.2014.0566 , Online ISSN 1750-0443

Received 08/10/2014, Accepted 29/10/2014, Published 03/03/2015

ZrO₂ fibres have been used in aspects of aeronautics and astronautics because of their properties such as high strength, good toughness and thermal shock resistance. In this reported work, polyvinylpyrrolidone (PVP)/Y(NO₃)₃·6H₂O/ZrOCl₂·8H₂O (PVP-precursor) nanofibres were prepared by the sol–gel method and an electro-spinning technique. Then, the ZrO₂ fibres by Y-doping were obtained by calcination of the above precursor fibres at 550°C for 0.5 h. These fibres were characterised by X-ray diffraction, scanning electron microscopy, energy-dispersive X-ray spectroscopy, Fourier transform infrared spectroscopy, differential scanning calorimetry and thermogravimetry to study the physical and chemical properties. The formation mechanism of ZrO₂ fibres is also illustrated. The results show that: (i) the diameter of the nanofibres is in the range of 500–3000 nm; (ii) PVP-precursor fibres should reach the level of obvious dehydration, oxidation decomposition and phase transition to synthesise ZrO₂ nanofibres; (iii) through thermal poly-condensation reaction, PVP turns into a network structure of graphitised carbon.

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Fabrication of nanofibres via polyvinylpyrrolidone by sol–gel method and electro-spinning technique

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