生物医学工程研究2018，Vol.37Issue(1)：61-65,5.DOI:10.19529/j.cnki.1672-6278.2018.01.13
表面多孔聚醚醚酮的制备和压缩性能——一种理想的融合材料
Fabrication method and compressive property of surface-porous polyetheretherketone(PEEK):an optimal interbody fusion material
张云霞 1李秋炎 1王东 1何国1
作者信息
- 1. 上海交通大学材料科学与工程学院,上海 200240
- 折叠
摘要
Abstract
In order to improve interface integration between bone and poly ether ether ketone(PEEK)cage, PEEK was modified with a surface porous layer by die casting and etching process.Porous layer with 100%open porosity possessed a pore size of 400 μm and thickness of 1.5 mm.Under transverse force(parallel to porous layer),uni-axial compression tests showed that surface porous PEEK(SP-PEEK)with porosities of 30%,40%and 50%preserved 87.1%~90.5%of the strength(57,55.8 and 54.9 MPa re-spectively)and 53.6%~83.6%of the elastic modulus(9.2,7.9 and 5.9 GPa respectively)of solid injection-molded PEEK.Under axial force(perpendicular to porous layer),SP-PEEK with porosities of 30%,40%and 50%preserved 64.3%~79%of the com-pressive yield strength(49.8,48.3 and 40.5 MPa respectively)and 47.1%~49.1%of the elastic modulus(5.4,5.3 and 5.2 GPa respectively)of solid PEEK.As-prepared SP-PEEK possessed comparable stiffness with cortical bone(4.9~28 GPa),suggesting that SP-PEEK can maintain stiffness necessary for interbody fusion.关键词
聚醚醚酮/表面多孔材料/脊柱融合/压缩行为/高应力环境Key words
Poly ether ether ketone/Surface porous material/Interbody fusion/Compressive property/High load-bearing condition分类
医药卫生引用本文复制引用
张云霞,李秋炎,王东,何国..表面多孔聚醚醚酮的制备和压缩性能——一种理想的融合材料[J].生物医学工程研究,2018,37(1):61-65,5.
