Until the advent of novel Enders catalysts, nonlinear rheological characterization polyethylene (PE) blends, containing up to 50 wt. % ultra-high molecular weight PE (UHMWPE, with average Mw > 106 g/mol) was unattainable. In this study, by melt blending a commercially available high-density (polymer matrix) and PE-reactor-blends (RBs), multimodal blends were prepared, their viscoelastic ...

The mechanical properties of fiber-reinforced composites are largely dictated by fiber-matrix interactions, where a well-adhered interface is desired. Ultra-high molecular weight polyethylene (UHMWPE) fibers suffer from poor interfacial due to their smooth and inert surface. Therefore, enhancing the such will lead an increased use in structural applications high modulus, tenacity, low density, ...

Ultra-high molecular weight polyethylene (UHMWPE) is a relevant thermoplastic in industry and well-proven standard biomaterial joint replacements. To enhance its tribological properties while preserving bulk ones, composite coatings on UHMWPE substrate were prepared using non-functionalised graphene nanoplatelet (GNP) at reinforcement concentration of 0.1–5 wt% two mechanical mixing techniques ...

INTRODUCTION: There is a need for a structural fatigue test method applicable to UHMWPE acetabular liners. Yet, for these implants, there are currently no standards that specify a structural fatigue test such as those that exist for other implants. The aim of this work was to develop a simple and practical fatigue test method based on the most relevant techniques previously reported in the lite...

Spatial geometric effects on the friction coefficients of UHMWPe Alison C. Dunn a, Jason G. Steffens a, David L. Burris a, Scott A. Banks b, W. Gregory Sawyer a,∗ a Department of Mechanical and Aerospace Engineering, P.O. Box 116300 University of Florida, Gainesville, FL 32611, USA b Department of Mechanical and Aerospace Engineering, J. Crayton Pruitt Department of Biomedical Engineering, P.O....

Introduction: Metal on conventional ultra-high molecular weight polyethylene (UHMWPE) bearings have produced excellent long-term results in total hip arthroplasty (THA), with 20 year survivorship of almost 80%. However, the consequences of bearing surface wear, including osteolysis and aseptic loosening, have been a leading cause of late revision THA, especially in younger, more active patients...

Bacterial adherence on total joint replacement implants may lead to biofilm formation and implant-related osteoarticular infection. It is unclear if different biomaterials in the prosthetic components are more prone to facilitate this bacterial adherence, although ultrahigh molecular weight polyethylene (UHMWPE) component exchange in modular systems has been clinically utilized in the early man...

Abstract Ultra-high molecular weight polyethylene unidirectional fabric (hereinafter referred to as UHMWPE UD fabric) composite material is a ballistic with excellent performance. Aiming improve the property of composite, this paper introduces new trends both in fiber broadening technology and resin system; view low heat resistance poor fabric, application development functionalized are discuss...