Fracture resistance analysis of PEEK-polymer

Engineering Structures and Technologies

Roman Frątczak¹  Grzegorz Lesiuk²  Aleksandra Sawicka³  José Correia⁴ 

[1] Nobo Solutions S.A., al. Kasztanowa 3a-5, 53-125 Wrocław, Poland;Politechnika Wroclawska, Department of Mechanics, Materials Science and Engineering, Smoluchowskiego 25, Wroclaw 50-370, Poland;Politechnika Wroclawska, Faculty of Mechanical Engineering, Wroclaw 50-370, Poland;Universidade do Porto Faculdade de Engenharia, Porto 4200-465, Portugal;

关键词: PEEK material;    fracture toughness;    DIC;    biomaterials;    fractography;    stress intensity factor;   

DOI  :  10.3846/2029882X.2017.1417062

来源: DOAJ

【 摘 要 】

PEEK is a thermoplastic polymer with halfcrystallic structure – the scientific name of this material is poly(oxy- 1,4-phenylene-oxy-1,4-phenylenecarbonyl-1,4-phenylene). It has a high melt and glass transition temperatures (Tm = 340 oC, Tg = 143 oC), high chemical resistance and is melt processable. Thus it has been used in a variety of structural and insulation applications. Nowadays, one of them is the biomedical application. The mechanical properties of PEEK have been extensively investigated in many research papers. However, there is not so high number of papers devoted to the fracture susceptibility of PEEK-material. Therefore, the the aim of this work is to present the results of studies on PEEK material with the use of fracture toughness test and digital image correlation. In order to conduct the tests, there were used two types of samples: SENB and CT. In comparison with other polymeric materials subjected to biomedical application, PEEK material presents relatively good fracture resistance with their biocompatibility.

【 授权许可】

Unknown