Textile Science and Engineering (한국섬유공학회지)

The Korean Fiber Society (한국섬유공학회)
권호 표지
DOI QR코드

DOI QR Code

Evaluation of Rheological Properties of Polytetrafluoroethylene/Isoparaffin

PTFE/Isoparaffin의 유변학적 거동 연구

  • 임영민 (영남대학교 대학원 유기신소재공학과) ;
  • 김성철 ((주)코멤텍) ;
  • 이강욱 ((주)코멤텍) ;
  • 장용 ((주)코멤텍) ;
  • 오태환 (영남대학교 대학원 유기신소재공학과)
  • Received : 2021.07.06
  • Accepted : 2021.08.10
  • Published : 2021.08.31
⟨ Previous Next ⟩

Abstract

The effect of isoparaffin on the rheological properties of polytetrafluoroethylene (PTFE) was investigated. PTFE/isoparaffin paste was prepared for two different types of isoparaffin, that is, Isopars G and M, which can be used as PTFE lubricants. Molecular dynamics (MD) simulations were applied to investigate the effect of the lubricants on the zero-shear viscosity of the PTFE/isoparaffin system. The Green-Kubo relationship was used to obtain the zero-shear viscosity through the MD simulations. In the relationship, the autocorrelation function of the shear stress was calculated and integrated over time. The shear viscosity of PTFE/Isopar G was lower than that of PTFE/Isopar M, corresponding to the experimental results.

Keywords

Acknowledgement

본 연구는 산업통상자원부(한국산업기술평가관리원) 산업기술혁신사업 소재부품기술개발-전략핵심소재 자립화기술개발사업(20011102)을 통해 수행되었으며, 이에 감사드립니다.

References

  1. X. Li, X.-X. Wang, T.-T. Yue, Y. Xu, M.-L. Zhao, M. Yu, S. Ramakrishna, and Y.-Z. Long, "Waterproof-breathable PTFE nano- and Microfiber Membrane as High Efficiency PM2.5 Filter", Polymers, 2019, 11, 590. https://doi.org/10.3390/polym11040590
  2. F. A. Ghani, K. Hamzah, W. N. W. Salleh, and H. Mohamed, "Preparation and Characterization of PTFE Flat Sheet Membrane: Effect of Sodium Benzoate Content", Malaysian J. Fundam. Appl. Sci., 2017, 13, 598-601. https://doi.org/10.11113/mjfas.v0n0.558
  3. J. T. Kim, E. B. Kim, S. Y. Kim, and C. S. Ju, "Effects of Annealing Process on the Crystallinity and Tensile Strength of PTFE", Korean Chem. Eng. Res., 2010, 48, 53-57.
  4. J.-H. Kim, I.-S. Moon, M.-Y. Hwang, R.-G. Kim, and D. Ko, "Filtration Characteristics of Paticulate Matter at Bag Filters Coated with PTFE Membrane During Off-Line Pulsing", J. Korean Soc. Environ. Eng., 2017, 39, 391-402. https://doi.org/10.4491/KSEE.2017.39.7.391
  5. T. Tomkovic and S. G. Hatzikiriakos, "Rheology and Processing of Polytetrafluoroethylene (PTFE) Paste", Can. J. Chem. Eng., 2020, 98, 1852-1865. https://doi.org/10.1002/cjce.23816
  6. I. Ochoa, S. G. Hatzikiriakos, and E. Mitsoulis, "Paste Extrusion of Polytetrafluoroethylene : Temperature, Blending and Processing Aid Effects", Intern. Polym. Processing, 2006, 21, 497-503. https://doi.org/10.3139/217.0028
  7. M. Ansari, D. Vavlekas, J. L. McCoy, and S. G. Hatzikiriakos, "Paste Extrusion and Mechanical Properties of PTFE", Intern. Polymer Processing, 2015, 30, 603-614. https://doi.org/10.3139/217.3130
  8. S. G. Hatzikiriakos, "Rheology and Processing of Tetrafluoroethylene/Hexafluoropropylene Copolymers", Intern. Polym. Processing, 2012, 27, 167-180. https://doi.org/10.3139/217.2539
  9. S. Plimpton, "Fast Parallel Algraphenerithms for Short-range Molecular Dynamics", J. Comput. Phys., 1995, 117, 1-19. https://doi.org/10.1006/jcph.1995.1039
  10. S. H. Jang, Y. H. Seo, Y. M. Im, Y. S. Nam, W. T. Sin, and T. H. Oh, "Effects of Polylactic Acid Blending on the Mechanical Properties of Polybutylene Succinate", Text. Sci. Eng., 2021, 58, 1-6. https://doi.org/10.12772/TSE.2021.58.001
  11. B. Sun, L. Lu, and Y. Zhu, "Molecular Dynamics Simulation on the Diffusion of Flavor, O2 and H2O Molecules in LDPE Film", Materials, 2019, 12, 3515. https://doi.org/10.3390/ma12213515
  12. D. Gonzalez-Salgado and C. Vega, "A New Intermolecular Potential for Simulations of Methanol: The OPLS/2016 Model", J. Chem. Phys., 2016, 145, 034508. https://doi.org/10.1063/1.4958320
  13. B. Hess, "Determining the Shear Viscosity of Model Liquids from Molecular Dynamics Simulations", J. Chem. Phys., 2016, 116, 209-217. https://doi.org/10.1063/1.1421362
  14. S. H. Jamali, R. Hartkamp, C. Bardas, J. Sohl, T. J. H. Vlugt, and O. A. Moultos, "Shear Viscosity Computed from the Finite-size Effects of Self-diffusivity in Equilibrium Molecular Dynamics", J. Chem. Theory Comput., 2018, 14, 5959-5968. https://doi.org/10.1021/acs.jctc.8b00625