首页|Transfer film effects induced by 3D-printed polyether-ether-ketone with excellent tribological properties for joint prosthesis

Transfer film effects induced by 3D-printed polyether-ether-ketone with excellent tribological properties for joint prosthesis

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Based on the building principle of additive manufacturing,printing orientation mainly determines the tribological properties of joint prostheses.In this study,we created a polyether-ether-ketone(PEEK)joint prosthesis using fused fi lament fabrication and investigated the effects of printing orientation on its tribological properties using a pin-on-plate tribometer in 25％newborn calf serum.An ultrahigh molecular weight polyethylene transfer film is formed on the surface of PEEK due to the mechanical capture of wear debris by the 3D-printed groove morphology,which is significantly impacted by the printing orientation of PEEK.When the printing orientation was parallel to the sliding direction of friction,the number and size of the transfer film increased due to higher steady stress.This transfer film protected the matrix and reduced the friction coefficient and wear rate of friction pairs by 39.13％and 74.33％,respectively.Furthermore,our findings provide a novel perspective regarding the role of printing orientation in designing knee prostheses,facilitating its practical applications.

3D printing orientationTransfer filmTribological propertiesPolyether-ether-ketoneKnee prosthesis

Yang Li、Jibao Zheng、Changning Sun、Dichen Li

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State Key Laboratory for Manufacturing System Engineering,School of Mechanical Engineering,Xi'an Jiaotong University,Xi'an 710054,China

National Medical Products Administration(NMPA)Key Laboratory for Research and Evaluation of Additive Manufacturing Medical Devices,Xi'an Jiaotong University,Xi'an 710054,China

following funds:(1)National Key R&D Program of ChinaProgram for Innovation Team of Shaanxi ProvinceProgram of the National Natural Science Foundation of ChinaKey R&D Program of Guangdong ProvinceNatural Science Basic Research Program of Shaanxi ProvinceChina Postdoctoral Science FoundationFundamental Research Funds for the Central UniversitiesYouth Innovation Team of Shaanxi Universities

2018YFE02079002023-CX-TD-17518350102018B0909060012022JQ-3782020M683458

2024

10.1007/s42242-023-00258-y

生物设计与制造(英文)

生物设计与制造(英文)

ISSN：2096-5524
年,卷(期)：2024.7(1)
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