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首页> 外文期刊>Journal of materials science >Comparison of failure mechanisms for cements used in skeletal luting applications
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Comparison of failure mechanisms for cements used in skeletal luting applications

机译：骨水泥应用中水泥破坏机理的比较

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摘要

Glass Polyalkenoate Cements (GPCs) based on strontium calcium zinc silicate (Sr-Ca-Zn-SiO_2) glasses and low molecular weight poly(acrylic acid) (PAA) have been shown to exhibit suitable compressive strength (65 MPa) and flexural strength (14 MPa) for orthopaedic luting applications. In this study, two such GPC formulations, alongside two commercial cements (Simplex~® P and Hydroset™) were examined. Fracture toughness and tensile bond strength to sintered hydroxyapatite and a biomedical titanium alloy were examined. Fracture toughness of the commercial Poly(methyl methacrylate) cement, Simplex~® P, (3.02 MPa m~(1/2)) was superior to that of the novel GPC (0.36 MPa m~(1/2)) and the commercial calcium phosphate cement, Hydroset™, for which no significant fracture toughness was obtained. However, tensile bond strengths of the novel GPCs (0.38 MPa), after a prolonged period (30 days), were observed to be superior to commercial controls (Simplex™ P: 0.07 MPa, Hydroset™: 0.16 MPa).
机译：已显示基于硅酸锶钙锌（Sr-Ca-Zn-SiO_2）玻璃和低分子量聚丙烯酸（PAA）的玻璃链烯酸酯水泥（GPC）具有合适的抗压强度（65 MPa）和抗弯强度（ 14 MPa）用于整形外科应用。在这项研究中，研究了两种此类GPC配方以及两种市售水泥（Simplex®P和Hydroset™）。检查了对烧结的羟基磷灰石和生物医学钛合金的断裂韧性和拉伸结合强度。市售的聚甲基丙烯酸甲酯水泥Simplex〜®P的断裂韧性（3.02 MPa m〜（1/2））优于新型GPC（0.36 MPa m〜（1/2））和市售的磷酸钙水泥Hydroset™，其未获得明显的断裂韧性。但是，经过长时间（30天）后，新型GPC的抗拉强度（0.38 MPa）优于商业对照（Simplex™P：0.07 MPa，Hydroset™：0.16 MPa）。

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  • 来源
    《Journal of materials science》 |2009年第8期|1585-1594|共10页
  • 作者

    O. Clarkin; D. Boyd; M. R. Towler;

  • 作者单位

    Clinical Materials Unit, Materials & Surface Science Institute, University of Limerick, National Technological Park, Limerick, Ireland;

    Medical Engineering Design Innovation Centre (MEDIC), Cork Institute of Technology, Cork, Ireland;

    Clinical Materials Unit, Materials & Surface Science Institute, University of Limerick, National Technological Park, Limerick, Ireland Department of Crystalline Materials Science, Graduate School of Engineering, Nagoya University, Nagoya, Japan;

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