聚醚醚酮树脂盘制备及其基本力学性能检测  

Preparation and basic mechanical properties determination of Polyether-ether-ketone(PEEK)resin discs

作　　者：吴苏 孙健[1] WU Su;SUN Jian(Department of Prosthodontics,Shanghai Ninth People’s Hospital,Shanghai Jiao Tong University School of Medicine,College of Stomatology,Shanghai Jiao Tong University,National Center of Stomatology,National Clinical Research Center for Oral Diseases,Shanghai Key Laboratory of Stomatology,Shanghai Research Institute of Stomatology,Shanghai 200011,China)

机构地区：[1]上海交通大学医学院附属第九人民医院口腔修复科,上海交通大学口腔医学院,国家口腔医学中心,国家口腔疾病临床医学研究中心,上海市口腔医学重点实验室,上海市口腔医学研究所,上海200011

出　　处：《口腔颌面修复学杂志》2023年第4期283-288,320,共7页Chinese Journal of Prosthodontics

基　　金：广西口腔颌面修复与重建研究重点实验室开放课题(项目编号:GXKLRROM2105)。

摘　　要：目的:制备聚醚醚酮(PEEK)树脂盘并检测其表面微观结构及力学性能。方法:先将粒状PEEK原材料经干燥后挤出、切割、热处理后经车床加工成PEEK树脂盘。再将该PEEK树脂盘(实验组)和目前口腔临床应用的成品PEEK树脂盘(对照组)分别切削成各项力学性能测试所需的试件,对比两组材料的性能,比较两组材料的物相组成,并在扫描电子显微镜下观测比较两组试件表面及断裂面的微观结构。结果:获得了制备的PEEK树脂盘。实验组试件极限挠曲强度σ为(179.46±5.09)MPa,挠曲弹性模量E为(3.99±0.18)GPa,断裂韧性KIC为(7.01±1.13)MPa·m^(1/2),总断裂功Wt为(4.89±1.27)KJ/M2;对照组试件极限挠曲强度σ为(170.04±4.11)MPa,挠曲弹性模量E为(4.44±0.13)GPa,断裂韧性KIC为(4.31±0.28)MPa·m^(1/2),总断裂功Wt为(1.24±0.13)KJ/M2;上述两组数据差异均具有统计学意义(P<0.05)。实验组试件拉伸强度σm为(95.18±3.89)MPa;对照组试件拉伸强度σm为(93.46±4.07)MPa;上述两组数据差异不具有统计学意义(P>0.05)。扫描电子显微镜下观测可见,实验组试件的表面较为平坦光滑,可见少许孔隙,其断裂面较表面略粗糙,颗粒分布均匀,可见少量孔隙及微裂纹;对照组试件表面较实验组粗糙,裂纹更多,其断裂面颗粒均匀,但可见较多粗大孔状结构。物相分析显示,两组材料的各晶面峰值基本一致。结论:从本实验结果来看,获得的PEEK树脂盘已达到聚合物基修复材料力学性能的要求,具有临床应用的可行性。Objective:Polyether-ether-ketone(PEEK)resin discs were prepared and their surface microstructures and mechanical properties were determined.Methods:The PEEK raw material was dried and then extruded,cut and heat treated into PEEK resin discs.Then the PEEK resin discs(experimental group)and the finished PEEK discs(control group)currently used in oral clinical practice were respectively cut into the test pieces required for each mechanical performance test,including the comparison of the properties,analysis of the crystal structure,and observation using a scanning electron microscope of the microstructures of the surfaces and fracture surfaces of the two groups.Results:PEEK resindiscs were obtained.In the experimental group,σm was(179.46±5.09)MPa,E(3.99±0.18)GPa,KIC was(7.01±1.13)MPa m^(1/2),andWt was(4.89±1.27)KJ/M2;in the control group,σm was(170.04±4.11)MPa,E was(4.44±0.13)GPa,KIC was(4.31±0.28)MPa·m^(1/2),andWt was(1.24±0.13)KJ/M2;and there were significant differences in the above two groups of data.In the experimental group,σσm was(95.18±3.89)MPa;in the control group,σm was(93.46±4.07)MPa;and there were no significant differences in the above two groups of data.Scanning electron microscopy showed that the surface of the test sample in the experimental group was relatively flat and smooth,a few pores were observed,the fracture surface was slightly rougher than the surface,the particle distribution was uniform,and a small amount of pores and microcracks were observed;the surface of the test sample in the control group was rougher than that in the experimental group,the cracks were many and obvious,the particles on the fracture surface were uniform,but more pore structures were observed.Phase analysis showed that the peaks of each crystal plane were generally consistent between the two groups.Conclusion:From the results of this experiment,the preparated PEEK resin discs have met the requirements for mechanical properties of polymer-based restorative materials,and they are feasible for clinical app

关 键 词：聚醚醚酮 机械性能 表面微观结构 物相分析 

分 类 号：R783.1[医药卫生—口腔医学]