Mechanical and bio-lubricated friction performance of PA6G for gear applications
| Autor: | José Eduardo Báez-García, Juan E. Marta, Luis D. Aguilera-Camacho, María T. Hernández-Sierra, Karla J. Moreno, J. S. García-Miranda |
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| Rok vydání: | 2020 |
| Předmět: |
chemistry.chemical_classification
Materials science Tension (physics) Mechanical Engineering 02 engineering and technology Polymer Tribology 010402 general chemistry 021001 nanoscience & nanotechnology Condensed Matter Physics 01 natural sciences Indentation hardness 0104 chemical sciences Characterization (materials science) Volume (thermodynamics) chemistry Mechanics of Materials Lubrication General Materials Science Composite material 0210 nano-technology Tribometer |
| Zdroj: | MRS Advances. 5:3055-3064 |
| ISSN: | 2059-8521 |
| Popis: | The PA6G blue is a polymeric material for great versatility of engineering applications that required good mechanical and tribological properties such as gears. The focus of this study was to investigate the mechanical properties as well as the friction and wear resistance of a commercial PA6G blue under biodegradable external lubrication, to evaluate its potential use for gear applications. Firstly, the PA6G blue was characterized by FTIR analysis in order to identify the characteristic chemical groups of this polymer. The mechanical characterization was performed by tension and hardness tests according to the standards ASTM D638 and ASTM E10, respectively. Subsequently, friction tests were carried out on a tribometer with pin-on-disk configuration based on the ASTM G99 standard, in dry and lubricated conditions. Natural castor and canola oils were employed as bio-lubricants, as well as their mixture at 50% by volume. The results exhibited that the PA6G blue exhibit good mechanical performance as that required by gear fabrications. Besides, the friction performance showed a low friction coefficient of 0.11 in the dry condition that decreased about 50% in lubricated tests, obtaining a friction coefficient value of 0.054. |
| Databáze: | OpenAIRE |
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