온도 조건에 따른 폴리머 소재의 트라이볼로지 특성 연구
Effects of Temperature on Tribological Properties of Polymer Material
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초록
Research to replace metal mechanical elements with polymer materials has recently accelerated. However, polymers exhibit less favorable mechanical properties than metal materials, and are often easily worn-out owing to frictional heat when their mechanical elements contact while in relative motion. Therefore, research on the polymer tribological properties is required to employ polymer materials in mechanical elements operating under harsh conditions. In this study, we examine the effect of mechanical part operating temperatures on the material friction and wear characteristics of polymer materials. We conduct ball-on-disk friction tests under dry conditions at various temperatures, using a metal ball with high hardness and a polymer as the counter surface. Each test is repeated at least three times to ensure the reliability of the test results. Before the friction test, we analyze the surface hardness and roughness of each polymer specimen; after the friction test, we use a three-dimensional confocal microscope to compare and analyze the polymer specimen wear characteristics. Based on this study, we systematically elucidate the polymer material tribological characteristics. This information should be useful for selecting and utilizing polymer materials at various temperatures.
Abstract
Research to replace metal mechanical elements with polymer materials has recently accelerated. However, polymers exhibit less favorable mechanical properties than metal materials, and are often easily worn-out owing to frictional heat when their mechanical elements contact while in relative motion. Therefore, research on the polymer tribological properties is required to employ polymer materials in mechanical elements operating under harsh conditions. In this study, we examine the effect of mechanical part operating temperatures on the material friction and wear characteristics of polymer materials. We conduct ball-on-disk friction tests under dry conditions at various temperatures, using a metal ball with high hardness and a polymer as the counter surface. Each test is repeated at least three times to ensure the reliability of the test results. Before the friction test, we analyze the surface hardness and roughness of each polymer specimen; after the friction test, we use a three-dimensional confocal microscope to compare and analyze the polymer specimen wear characteristics. Based on this study, we systematically elucidate the polymer material tribological characteristics. This information should be useful for selecting and utilizing polymer materials at various temperatures.
참고문헌 (11)
- Brostow, W., "Tribology with emphasis on polymers : friction, scratch resistance and wear", Journal of Materials Education, 25(4, pp.6) (2003), 119~132
- 최승윤, "고온 환경에서 합금의 마모 및 마찰 특성에 관한 연구", 한국트라이볼로지학회지, 35(1), pp.24~29 (2019), 한국트라이볼로지학회[DOI]
- Gangineni, P. K., "Recent advancements in interface engineering of carbon fiber reinforced polymer composites and their durability studies at different service temperatures", Polymer Composites, 43(7), pp.4126~4164 (2022)
- Wang, Q., "Tribological properties of polymers PI, PTFE and PEEK at cryogenic temperature in vacuum", Cryogenics, 75, pp.19~25 (2016)
- Bijwe, J., "Inluence of PTFE content in PEEK–PTFE blends on mechanical properties and tribo-performance in various wear modes", Wear, 258(10), pp.1536~1542 (2005)
- Lawn, B. R., "Elastic recovery at hardness indentations", Journal of Materials Science, 16, pp.2745~2752 (1981)
- Malkin, A. Y, "Non-Newtonian viscosity in steady-state shear flows", Journal of Non-Newtonian Fluid Mechanics, 192, pp.48~65 (2013)
- Barnes, J. A., "Thermal expansion characteristics of PEEK composites", Journal of materials science, 26, pp.2259~2271 (1991)
- Fujita, S., "Electrical properties of polyimide with water absorption", Proceedings. 11th International Symposium on Electrets (2002), IEEE
- Yokota, R., "Molecular design of heat resistant polyimides having excellent processability and high glass transition temperature", High Performance Polymers, 13(2), pp.S61~S72 (2001)
- 이상훈, "Thermal wetting 현상이 탄소나노튜브-금속박막 계면의응착력에 미치는 영향에 관한 분자 시뮬레이션 연구", 한국트라이볼로지학회지, 39(1), pp.8~12 (2023), 한국트라이볼로지학회