Effects of PTFE Micro-Particles on the Fiber-Matrix Interface of Polyoxymethylene/Glass Fiber/Polytetrafluoroethylene Composites
Reinforcing polyoxymethylene (POM) with glass fibers (GF) enhances its mechanical properties, but at the expense of tribological performance. Formation of a transfer film to facilitate tribo-contact is compromised due to the abrasiveness of GF. As a solid lubricant, for example, polytetrafluoroethyl...
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| Format: | Article |
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MDPI
2018
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| author | Singh, Jasbir Ching, Yern Chee Liu, De Ching, Kuan Razali, Shaifulazuar Gan, Seng Neon |
| author_facet | Singh, Jasbir Ching, Yern Chee Liu, De Ching, Kuan Razali, Shaifulazuar Gan, Seng Neon |
| author_sort | Singh, Jasbir |
| collection | UM |
| description | Reinforcing polyoxymethylene (POM) with glass fibers (GF) enhances its mechanical properties, but at the expense of tribological performance. Formation of a transfer film to facilitate tribo-contact is compromised due to the abrasiveness of GF. As a solid lubricant, for example, polytetrafluoroethylene (PTFE) significantly improves friction and wear resistance. The effects of chemically etched PTFE micro-particles on the fiber-matrix interface of POM/GF/PTFE composites have not been systematically characterized. The aim of this study is to investigate their tribological performance as a function of micro-PTFE blended by weight percentage. Samples were prepared by different compositions of PTFE (0, 1.7, 4.0, 9.5, 15.0 and 17.3 wt.%). The surface energy of PTFE micro-particles was increased by etching for 10 min using sodium naphthalene salt in tetrahydrofuran. Tribological performance was characterized through simultaneous acquisition of the coefficient of friction and wear loss on a reciprocating test rig in accordance to Procedure A of ASTM G133-95. Friction and wear resistance improved as the micro-PTFE weight ratio was increased. Morphology analysis of worn surfaces showed transfer film formation, encapsulating the abrasive GF. Energy dispersive X-ray spectroscopy (EDS) revealed increasing PTFE concentration from the GF surface interface region (0.5, 1.0, 1.5, 2.0, 2.5 μm). |
| first_indexed | 2024-03-06T05:51:50Z |
| format | Article |
| id | um.eprints-20652 |
| institution | Universiti Malaya |
| last_indexed | 2024-03-06T05:51:50Z |
| publishDate | 2018 |
| publisher | MDPI |
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| spelling | um.eprints-206522019-03-11T08:49:02Z http://eprints.um.edu.my/20652/ Effects of PTFE Micro-Particles on the Fiber-Matrix Interface of Polyoxymethylene/Glass Fiber/Polytetrafluoroethylene Composites Singh, Jasbir Ching, Yern Chee Liu, De Ching, Kuan Razali, Shaifulazuar Gan, Seng Neon Q Science (General) QD Chemistry TJ Mechanical engineering and machinery TP Chemical technology Reinforcing polyoxymethylene (POM) with glass fibers (GF) enhances its mechanical properties, but at the expense of tribological performance. Formation of a transfer film to facilitate tribo-contact is compromised due to the abrasiveness of GF. As a solid lubricant, for example, polytetrafluoroethylene (PTFE) significantly improves friction and wear resistance. The effects of chemically etched PTFE micro-particles on the fiber-matrix interface of POM/GF/PTFE composites have not been systematically characterized. The aim of this study is to investigate their tribological performance as a function of micro-PTFE blended by weight percentage. Samples were prepared by different compositions of PTFE (0, 1.7, 4.0, 9.5, 15.0 and 17.3 wt.%). The surface energy of PTFE micro-particles was increased by etching for 10 min using sodium naphthalene salt in tetrahydrofuran. Tribological performance was characterized through simultaneous acquisition of the coefficient of friction and wear loss on a reciprocating test rig in accordance to Procedure A of ASTM G133-95. Friction and wear resistance improved as the micro-PTFE weight ratio was increased. Morphology analysis of worn surfaces showed transfer film formation, encapsulating the abrasive GF. Energy dispersive X-ray spectroscopy (EDS) revealed increasing PTFE concentration from the GF surface interface region (0.5, 1.0, 1.5, 2.0, 2.5 μm). MDPI 2018 Article PeerReviewed Singh, Jasbir and Ching, Yern Chee and Liu, De and Ching, Kuan and Razali, Shaifulazuar and Gan, Seng Neon (2018) Effects of PTFE Micro-Particles on the Fiber-Matrix Interface of Polyoxymethylene/Glass Fiber/Polytetrafluoroethylene Composites. Materials, 11 (11). p. 2164. ISSN 1996-1944, DOI https://doi.org/10.3390/ma11112164 <https://doi.org/10.3390/ma11112164>. https://doi.org/10.3390/ma11112164 doi:10.3390/ma11112164 |
| spellingShingle | Q Science (General) QD Chemistry TJ Mechanical engineering and machinery TP Chemical technology Singh, Jasbir Ching, Yern Chee Liu, De Ching, Kuan Razali, Shaifulazuar Gan, Seng Neon Effects of PTFE Micro-Particles on the Fiber-Matrix Interface of Polyoxymethylene/Glass Fiber/Polytetrafluoroethylene Composites |
| title | Effects of PTFE Micro-Particles on the Fiber-Matrix Interface of Polyoxymethylene/Glass Fiber/Polytetrafluoroethylene Composites |
| title_full | Effects of PTFE Micro-Particles on the Fiber-Matrix Interface of Polyoxymethylene/Glass Fiber/Polytetrafluoroethylene Composites |
| title_fullStr | Effects of PTFE Micro-Particles on the Fiber-Matrix Interface of Polyoxymethylene/Glass Fiber/Polytetrafluoroethylene Composites |
| title_full_unstemmed | Effects of PTFE Micro-Particles on the Fiber-Matrix Interface of Polyoxymethylene/Glass Fiber/Polytetrafluoroethylene Composites |
| title_short | Effects of PTFE Micro-Particles on the Fiber-Matrix Interface of Polyoxymethylene/Glass Fiber/Polytetrafluoroethylene Composites |
| title_sort | effects of ptfe micro particles on the fiber matrix interface of polyoxymethylene glass fiber polytetrafluoroethylene composites |
| topic | Q Science (General) QD Chemistry TJ Mechanical engineering and machinery TP Chemical technology |
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