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首页> 外文期刊>日本セラミックス協会学術論文誌 >Preparation of hydroxyapatite porous ceramics with different porous structures using a hydrothermal treatment with different aqueous solutions
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Preparation of hydroxyapatite porous ceramics with different porous structures using a hydrothermal treatment with different aqueous solutions

机译：不同水溶液的水热处理制备具有不同多孔结构的羟基磷灰石多孔陶瓷

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摘要

Hydroxyapatite (HA) porous ceramics are useful for bone regeneration because HA shows a bone-bonding capability. The preparation of HA porous ceramics with controlled pore structures was attempted using a hydrothermal treatment of porous ceramics consisting of alpha tricalcium phosphate (α-TCP). The α-TCP porous ceramics were hydrothermally treated with various aqueous solutions containing NaCl, CaQ2, Na3PO4, Na2HPO4, NaH2PO4, or H3PO4 at 150°C for a period of 10 h. The α-TCP phase of the porous ceramics was transformed into HA by the hydrothermal treatment in ultrapure water, NaCl, CaCl2, Na3PO4 or Na2HPO4 solutions, to form porous ceramics consisting of rod-shaped HA particles. The size of the rod-shaped HA particles prepared in Na3PO4 or Na2HPO4 solutions was smaller than that prepared in ultrapure water, NaCl, or CaCl2 solutions. The α-TCP phase of the porous ceramics was transformed into a biphase consisting of HA and monetite (DCPA) after treatment in NaH2PO4 solution, and into DCPA in the H3PO4 solution, resulting in porous ceramics consisting of plate-shaped particles. These results indicate that we could control the size and shape of the HA particles using the hydrothermal conditions, and this also provides a way of controlling the porous structure of the HA porous ceramics.
机译：羟基磷灰石（HA）多孔陶瓷可用于骨骼再生，因为HA具有骨粘合能力。尝试使用水热处理由α-磷酸三钙（α-TCP）组成的多孔陶瓷来制备具有可控孔结构的HA多孔陶瓷。将α-TCP多孔陶瓷用含有NaCl，CaQ2，Na3PO4，Na2HPO4，NaH2PO4或H3PO4的各种水溶液在150°C下进行水热处理10小时。通过在超纯水，NaCl，CaCl2，Na3PO4或Na2HPO4溶液中进行水热处理，将多孔陶瓷的α-TCP相转变为HA，以形成由棒状HA颗粒组成的多孔陶瓷。在Na3PO4或Na2HPO4溶液中制备的棒状HA颗粒的尺寸小于在超纯水，NaCl或CaCl2溶液中制备的棒状HA颗粒的尺寸。在NaH 2 PO 4溶液中处理后，多孔陶瓷的α-TCP相转变为由HA和褐铁矿（DCPA）组成的双相，并且在H 3 PO 4溶液中转变为DCPA，得到由板状颗粒组成的多孔陶瓷。这些结果表明，我们可以使用水热条件来控制HA颗粒的尺寸和形状，这也提供了控制HA多孔陶瓷的多孔结构的方法。

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