Back to Search
Start Over
Destruction energy index (DEI) of vitamin E blended UHMWPE for artificial joints
- Source :
- Biosurface and Biotribology (2019)
- Publication Year :
- 2019
- Publisher :
- Wiley, 2019.
-
Abstract
- Destruction resistance such as start-up wear resistance characteristics of vitamin E (dl-α-tocopherol) blended ultra-high molecular weight polyethylene (UHMWPE) were evaluated using the destruction energy index (DEI). The DEI is used to evaluate wear-like destruction, by minimising the effects of viscosity at the sliding interface, and is estimated using newly designed friction testers. In this experiment, silicone oils of different viscosities were used to determine micro displacement up to a start-up point, and the DEI of the UHMWPE was changed from 17.48 to 1.84 μJ by adding vitamin E. The results suggest that the blending with vitamin E reduces destruction of UHMWPE at start-up friction in silicone oils.
- Subjects :
- sliding friction
biomedical materials
polymer blends
viscosity
prosthetics
wear resistance
destruction energy index
artificial joints
start-up wear resistance characteristics
dl-α-tocopherol
DEI
wear-like destruction
silicone oils
blending
vitamin E blended UHMWPE
ultrahigh molecular weight polyethylene
friction testers
sliding interface
microdisplacement
Biotechnology
TP248.13-248.65
Biochemistry
QD415-436
Subjects
Details
- Language :
- English
- ISSN :
- 24054518 and 62487949
- Database :
- Directory of Open Access Journals
- Journal :
- Biosurface and Biotribology
- Publication Type :
- Academic Journal
- Accession number :
- edsdoj.8b9d62487949f2864a51aa06c1867f
- Document Type :
- article
- Full Text :
- https://doi.org/10.1049/bsbt.2018.0027