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Rapid Hydrothermal Synthesis of Submillimeter Ultralong Flexible Hydroxyapatite Fiber Using Different pH Regulators

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Acta Metallurgica Sinica (English Letters) Aims and scope

Abstract

Hydroxyapatite fiber (HAF) was fabricated via a one-step hydrothermal route by using urea (CA), acetamide (AA) and propanamide (PA) as pH regulators, respectively, and the reaction time was only 0.5 h. The HAF synthesized by CA as the pH regulator was  agglomerated  with  irregular  morphology, while using AA or PA as the pH regulator, the HAF was composed of well-dispersed fibers with lengths larger than 200 μm. Two different morphologies form mainly due to the different hydrolysis rates of the pH regulators. Most of the fibers synthesized by the three pH regulators showed curving appearance, implying their outstanding flexibility. The technique in this paper allows the rapid formation of flexible HAF and may have wider applications in the restorations and reinforcement composites.

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Acknowledgments

This work was financially supported by the Fundamental Research Funds of Shandong University (No. 2015JC018), the Jiangsu Province Science Foundation for Youths (No. BK20140412) and the Shandong Province Young and Middle-Aged Scientists Research Awards Fund (No. BS2013CL030).

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Authors and Affiliations

  1. Key Laboratory for Liquid-Solid Structural Evolution and Processing of Materials, Ministry of Education, Shandong University, Jinan, 250061, China

    Mei-li Qi, Gui-yong Xiao & Yu-peng Lu

  2. School of Materials Science and Engineering, Shandong University, Jinan, 250061, China

    Mei-li Qi, Gui-yong Xiao & Yu-peng Lu

Authors
  1. Mei-li Qi
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  2. Gui-yong Xiao
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  3. Yu-peng Lu
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Correspondence to Yu-peng Lu.

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Qi, Ml., Xiao, Gy. & Lu, Yp. Rapid Hydrothermal Synthesis of Submillimeter Ultralong Flexible Hydroxyapatite Fiber Using Different pH Regulators. Acta Metall. Sin. (Engl. Lett.) 29, 609–613 (2016). https://doi.org/10.1007/s40195-016-0431-0

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  • DOI: https://doi.org/10.1007/s40195-016-0431-0

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