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Production of Recycling Prototype of Machining Teflon Waste by Compression Molding and Sintering and Investigation of Mechanical Properties

Ezgi Özgünerge Falay1✉,
Ayhan Kurtulmuş2,
Erva Nur Poyraz3,
Öz Erman Arusan4,
Lütfiye Altay5,
Mehmet Sarıkanat6,
Zafer Yenier7
1ARNES Mechanical Machinery Design Center
2ARNES Mechanical Machinery Design Center
3ARNES Mechanical Machinery Design Center
4ARNES Mechanical Machinery Design Center
5Ege University
6Ege University
7Ege University
Published:December 31, 2023
DOI: 10.56038/ejrnd.v3i4.398
Vol. 3, No. 4

Abstract

In this study, for the first time within the Arnes Mechanical Machinery Design Center, the recycling of Teflon (PTFE-Polytetrafluorethylene) wastes generated in the production of sealing elements by machining process was carried out, and know-how was obtained for the use of this recycling prototype as a secondary raw material. Within the scope of the study, the recycling prototype, which was separated as waste after the machining process, was characterized by DSC analysis and ground to 250-micron sizes. The resulting Teflon prototype was pressed by pressure molding and sintering processes. 370-390°C temperature and 2-4 hours time parameters were selected for sintering. To determine the mechanical properties of the secondary raw material prepared as a recycling prototype, a tensile test mold was designed, and tensile test samples were produced. As a result of the study, it was seen that the recycling Teflon prototype was successfully produced. It was determined that the mechanical properties of the produced prototype improved with increasing sintering temperature and time. Environmental sustainability will be ensured by reusing the second-quality raw materials from the study in production.

Keywords
RecyclingTeflon WasteCompression MoldingSinteringMechanical Properties

References

  1. 1.Falay, Ö. E., Çalışkanelli, B., Arusan, Ö.E., Altay, L. & Sarıkanat, M. (2023). Recycling of fluoropolymers and applications in the sealing industry. Engineer and Machinery, 64(711), 297-316.
  2. 2.Dhanumalayan, E. & Joshi, G.M. (2018). Performance properties and applications of polytetrafluoroethylene (PTFE) - A review. Advanced Composites and Hybrid Materials, 1(2), 247-268.
  3. 3.Radulovic, L. L. & Wojcinski, Z. W. (2024). PTFE (polytetrafluoroethylene; Teflon®). Encyclopedia of Toxicology (Fourth Edition), 7, 1001-1016.
  4. 4.Khapli, S. & Jagannathan, R. (2014). Supercritical CO2 based processing of amorphous fluoropolymer Teflon-AF: Surfactant-free dispersions and superhydrophobic films. The Journal of Supercritical Fluids, 85, 49-56.
  5. 5.Ding, X., Wu, J., Wang, Y., Cui, B., An, S., Su, B. & Wang, Y. (2022). Influence of surface texture on sealing performance of PTFE materials. Macromol, 2(2), 225-235.
  6. 6.Shen, M., Li, B., Zhang, Z., Zhao, L. & Xiong, G. (2020). Abrasive wear behavior of PTFE for seal applications under abrasive-atmosphere sliding condition. Friction, 8, 755-767.
  7. 7.Ni, J., Yuan, Y., Cui, Z., Lou, B. & He, L. (2023). Investigation of machinability in turning of PTFE based on MRR and cutting energy. Journal of Manufacturing Processes, 85, 122-131.
  8. 8.Natarajan, E., Kaviarasan, V., LiM, W. H., Tiang, S. S., Parasuraman, S. & Elango, S. (2019). Non-dominated sorting modified teaching–learning-based optimization for multi-objective machining of polytetrafluoroethylene (PTFE). Journal of Intelligent Manufacturing, 31, 911–935.
  9. 9.Cui, Z., Ni, J., He, L., Guan, L., Han, L. & Sun, J. (2022). Investigation of chip formation, cutting force and surface roughness during orthogonal cutting of polytetrafluoroethylene. Journal of Manufacturing Processes, 77, 485-494.
  10. 10.Ying, H., Su, R., Yang, J., Hu, L., Ruan, X., Ni, J. & He. L. (2023). Investigation of the effect of the cut parameter on the machining performance of PTFE cutting. Journal of Manufacturing Processes, 103, 144-155.
  11. 11.TS EN ISO 527-1. (2019). Plastics - Determination of tensile properties - Part 1: General principles.
  12. 12.Than, V. T., Wang, C. C., Ngo, T. T. & Lin, C. H. (2022). Thermal behavior of polytetrafluoroethylene in the sintering process. Thermal Science and Engineering Progress, 20, 101247.
  13. 13.Sciuti, V. F., Melo, C. C., Canto, L. B. & Canto, R. B. (2017). Influence of surface crystalline structures on DSC analysis of PTFE. Materials Research, 20(5), 1350-1359.
  14. 14.Aboudi, I. E., Mdarhri, A., Lame, O., Brosseau, C., Nourdine, A., Fabrègue, D. & Bonnefont, G. (2020). Analyzing the microstructure and mechanical properties of polytetrafluoroethylene fabricated by field-assisted sintering. Polymer, 203, 122810.
  15. 15.Rae, P. J. & Brown, E. N. (2005). The properties of poly(tetrafluoroethylene) (PTFE) in tension. Polymer, 46(19), 8128-8140.
  16. 16.Poitou, B., Dore, F. & Champomier, R. (2009). Mechanical and physical charactersations of polytetrafluoroethylene by high velocity compaction. International Journal of Material Forming, 2, 657.
  17. 17.Feng, Y., Xiong, T., Jiang, S., Liu, S. & Hou, H. (2016). Mechanical properties and chemical resistance of electrospun polyterafluoroethylene fibres. RSC Advances, 6, 24250-24256.
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Cite This Article
Falay, E. Ö., Kurtulmuş, A., Poyraz, E. N., Arusan, Ö. E., Altay, L., Sarıkanat, M., Yenier, Z. (2023). Production of Recycling Prototype of Machining Teflon Waste by Compression Molding and Sintering and Investigation of Mechanical Properties. *The European Journal of Research and Development*, 3(4), 109-116. https://doi.org/10.56038/ejrnd.v3i4.398

Bibliographic Info

JournalThe European Journal of Research and Development
Volume3
Issue4
Pages109–116
PublishedDecember 31, 2023
eISSN2822-2296