[1]张云霞,李秋炎,王东,等.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,2018,01:61-65.
ZHANG Yunxia,LI Qiuyan,WANG Dong,et al.Fabrication method and compressive property of surface-porous ?polyetheretherketone (PEEK):an optimal interbody fusion material[J].Journal of Biomedical Engineering Research,2018,01:61-65.
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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(PDF)
《生物医学工程研究》[ISSN:1006-6977/CN:61-1281/TN]
- 期数:
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2018年01期
- 页码:
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61-65
- 栏目:
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- 出版日期:
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2018-03-25
文章信息/Info
- Title:
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Fabrication method and compressive property of surface-porous ?polyetheretherketone (PEEK):an optimal interbody fusion material
- 文章编号:
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1672-6278 (2018)01-0061-05
- 作者:
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张云霞; 李秋炎; 王东; 何国△
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上海交通大学 材料科学与工程学院,上海 ?200240
- Author(s):
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ZHANG Yunxia; LI Qiuyan; WANG Dong; HE Guo
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College of Materials Science and Engineering, Shanghai Jiaotong University, Shanghai 200240, China
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- 关键词:
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聚醚醚酮; 表面多孔材料; 脊柱融合; 压缩行为; 高应力环境
- Keywords:
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Poly ether ether ketone; Surface porous material; Interbody fusion; Compressive property; High load-bearing condition
- 分类号:
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R318
- DOI:
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10.19529/j.cnki.1672-6278.2018.01.13
- 文献标识码:
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A
- 摘要:
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为了满足聚醚醚酮(poly ether ether ketone,PEEK)融合器在高应力环境下的应用,同时提高其与骨组织的接合能力,采用压铸和腐蚀方法制备孔径为0.4 mm, 多孔层厚度为1.5 mm,开孔率达100%的表面多孔PEEK(surface porous-PEEK,SP-PEEK),并研究了SP-PEEK的单向压缩行为。结果显示:当SP-PEEK孔隙率分别为30%,40%和50%时,其在横向力(平行于多孔层方向)作用下,保留了实体PEEK 53.6%~83.6%的弹性模量(分别为9.2、7.9和5.9 GPa)及87.1%~90.5%的屈服强度(分别为57、55.8和54.9 MPa);在轴向力(垂直于多孔层方向)作用下,SP-PEEK保留了47.1%~49.1%的弹性模量(分别为5.4、5.3和5.2 GPa)及64.3%~79%的屈服强度(分别为49.8、48.3和40.5 MPa)。制备的SP-PEEK具有与皮质骨相当的弹性模量(4.9~28 GPa),能够满足脊柱融合的刚度要求。
- Abstract:
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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 respectively)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 compressive 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.
备注/Memo
- 备注/Memo:
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(收稿日期:2017-05-15) △通信作者Email:ghe@sjtu.edu.cn
更新日期/Last Update:
2018-05-04