scholarly journals Ultra-High-Molecular-Weight-Polyethylene (UHMWPE) as a Promising Polymer Material for Biomedical Applications: A Concise Review

Polymers ◽  
2020 ◽  
Vol 12 (2) ◽  
pp. 323 ◽  
Author(s):  
Muzamil Hussain ◽  
Rizwan Ali Naqvi ◽  
Naseem Abbas ◽  
Shahzad Masood Khan ◽  
Saad Nawaz ◽  
...  
Keyword(s):  
Molecular Weight ◽  
Wear Resistance ◽  
High Molecular Weight ◽  
Polymer Material ◽  
Biomedical Applications ◽  
Mechanical Performance ◽  
Surface Modifications ◽  
High Wear Resistance ◽  
Concise Review ◽  
Ultra High Molecular Weight

Ultra-High Molecular Weight Polyethylene (UHMWPE) is used in biomedical applications due to its high wear-resistance, ductility, and biocompatibility. A great deal of research in recent decades has focused on further improving its mechanical and tribological performances in order to provide durable implants in patients. Several methods, including irradiation, surface modifications, and reinforcements have been employed to improve the tribological and mechanical performance of UHMWPE. The effect of these modifications on tribological and mechanical performance was discussed in this review.

Tribotechnical properties of ultra-high molecular weight polyethylene filled with sulfur, diphenylguanidine and 2-mercaptobenzothiazole

2020 ◽  
pp. 91-98
Author(s):  
S. N. Danilova ◽  
A. A. Dyakonov ◽  
A. P. Vasiliev ◽  
Y. S. Gerasimova ◽  
A. A. Okhlopkova ◽  
...  
Keyword(s):  
Electron Microscopy ◽  
Molecular Weight ◽  
Wear Resistance ◽  
Surface Layer ◽  
Ir Spectroscopy ◽  
High Molecular Weight ◽  
High Wear Resistance ◽  
Carbonyl Groups ◽  
Tribotechnical Properties ◽  
Ultra High Molecular Weight

The paper studies tribotechnical properties, hardness and density of composites based on ultra-high molecular weight polyethylene (UHMWPE) filled with sulfur, diphenylguanidine (DFG) and 2-mercaptobenzothiazole (MBT) and their mixtures. It has been established that the introduction of selected fillers has practically no effect on hardness and density of the composites, but leads to a significant (by 2–3 times) increase in the wear resistance of materials. Using electron microscopy, it has been established that secondary structures are formed in composites containing MBT that protect the surface layer of the material from wear. Using IR spectroscopy, it was established that tribochemical reactions occur during the wear of composites with the formation of hydroxyl and carbonyl groups. The developed materials UHMWPE / MBT and UHMWPE / FGD / MBT have high wear resistance and can be used as materials for tribological purposes.

SiO2 modified graphene oxide hybrids for improving fretting wear performance of ultra-high molecular weight polyethylene

2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Xiaocui Xin ◽  
Yunxia Wang ◽  
Zhaojie Meng ◽  
Fengyuan Yan
Keyword(s):  
Molecular Weight ◽  
Wear Resistance ◽  
High Molecular Weight ◽  
Design Methodology ◽  
Fretting Wear ◽  
Wear Performance ◽  
Content Type ◽  
Modified Graphene Oxide ◽  
Modified Graphene ◽  
Ultra High Molecular Weight

Purpose The purpose of this paper is to investigate the fretting wear performance of ultra-high-molecular-weight-polyethene (UHMWPE) with addition of GO and SiO2. Design/methodology/approach In this study, GO were synthesized and SiO2 nanoparticles were grafted onto GO. The effect of nanofiller on fretting wear performance of UHMWPE was investigated. Findings The results indicated that GO was successfully synthesized and SiO2 nanoparticles successfully grafted onto GO. Incorporation of GS was beneficial for the reduction in friction and the improvement in wear resistance of UHMWPE. GO was beneficial for reducing friction coefficient, while SiO2 was good for improving wear resistance. There existed a tribological synergistic effect between GO nanosheet and SiO2 nanoparticles. Research limitations/implications The hybrids of GS were promising nanofiller for improving the fretting wear performance of UHMWPE. Originality/value The main originality of the research is to reveal the effect of GO and SiO2 nanoparticles on fretting behavior of UHMWPE. The result indicated hybrids of GS were promising nanofiller for improving the fretting wear performance of UHMWPE.

Tribological Testing Results Comparison by Microscope Techniques

2013 ◽  
Vol 752 ◽  
pp. 248-256
Author(s):  
Tamás Szívós ◽  
Gabriella Zsoldos
Keyword(s):  
Molecular Weight ◽  
Wear Resistance ◽  
Methyl Methacrylate ◽  
High Molecular Weight ◽  
Ultra High Molecular Weight

Ultra high molecular weight polyethylene (UHMWPE) was modified by 20 % methyl-methacrylate (MMA). Specimens were examined by two directional tribological wearing methods. Wear resistance of the modified materials was found to be increased by 38 %. Despite the promising results further experiments are needed to utilize it as human implant.

Sign in / Sign up

Export Citation Format

Share Document