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Morphology Control and Self-Setting Modification of α-Calcium Sulfate Hemihydrate Bone Cement by Addition of Ethanol

Authors

  • Zongyou Pan,

    1. Department of Orthopaedic Surgery, Zhejiang Spine Research Center, Second Affiliated Hospital of Wenzhou Medical College, Wenzhou, Zhejiang, China
    2. Division of Functional Materials and Nanodevices, Ningbo Institute of Materials Technology and Engineering (NIMTE), Chinese Academy of Sciences (CAS), Ningbo, Zhejiang, China
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  • Guangyong Yang,

    1. Department of Orthopaedic Surgery, Zhejiang Spine Research Center, Second Affiliated Hospital of Wenzhou Medical College, Wenzhou, Zhejiang, China
    2. Division of Functional Materials and Nanodevices, Ningbo Institute of Materials Technology and Engineering (NIMTE), Chinese Academy of Sciences (CAS), Ningbo, Zhejiang, China
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  • Yi Lou,

    1. Department of Orthopaedic Surgery, Zhejiang Spine Research Center, Second Affiliated Hospital of Wenzhou Medical College, Wenzhou, Zhejiang, China
    2. Division of Functional Materials and Nanodevices, Ningbo Institute of Materials Technology and Engineering (NIMTE), Chinese Academy of Sciences (CAS), Ningbo, Zhejiang, China
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  • Enxing Xue,

    1. Department of Orthopaedic Surgery, Zhejiang Spine Research Center, Second Affiliated Hospital of Wenzhou Medical College, Wenzhou, Zhejiang, China
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  • Huazi Xu,

    Corresponding author
    • Department of Orthopaedic Surgery, Zhejiang Spine Research Center, Second Affiliated Hospital of Wenzhou Medical College, Wenzhou, Zhejiang, China
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  • Xigeng Miao,

    1. Division of Substrate Development, Department of Fabrication, Kuang-Chi Institute of Advanced Technology, Shenzhen, Guangdong
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  • Jianli Liu,

    1. Division of Functional Materials and Nanodevices, Ningbo Institute of Materials Technology and Engineering (NIMTE), Chinese Academy of Sciences (CAS), Ningbo, Zhejiang, China
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  • Chunfeng Hu,

    1. Division of Functional Materials and Nanodevices, Ningbo Institute of Materials Technology and Engineering (NIMTE), Chinese Academy of Sciences (CAS), Ningbo, Zhejiang, China
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  • Qing Huang

    Corresponding author
    1. Division of Functional Materials and Nanodevices, Ningbo Institute of Materials Technology and Engineering (NIMTE), Chinese Academy of Sciences (CAS), Ningbo, Zhejiang, China
    • Department of Orthopaedic Surgery, Zhejiang Spine Research Center, Second Affiliated Hospital of Wenzhou Medical College, Wenzhou, Zhejiang, China
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huangqing@nimte.ac.cn ; spinexu@163.com

Abstract

The self-setting behavior of α-calcium sulfate hemihydrate is highly dependent on its morphology that is tuned through the addition of ethanol into CaCl2 aqueous solutions during a salt solution method. With the increase of the ethanol/water volume ratios, the mean lengths of the formed crystals decreased from 24 to 19 μm, whereas their mean widths increased from 6 to 18 μm. It is also detected that the setting time of α-CSH paste reduced from 120 ± 12.3 to 17 ± 2.1 min as the crystal morphology evolved from rod-like to equiaxial.

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