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An Investigation on Pressure-Specific Volume–Temperature Behaviors of a Thermoplastic Under Industrial Conditions Using a Hot Runner Manifold

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Abstract

In the present study, a newly method for pressure-specific volume–temperature (P–V–T) behaviors of a thermoplastic in melt state was presented and experimented. To obtain the coefficients of the modified 2-domain Tait equation of state (EOS) in the melt state, the volume variation of the molten plastic in the barrel of the injection molding machine (IMM) was firstly considered at different temperatures and pressures. As the next step, specific volumes at these temperatures and pressures were calculated. And the coefficients of the modified two-domain Tait EOS in the melt state were then obtained by nonlinear regression via SPSS®. The simulation results using the experimental coefficients showed that, because of a greater slope in the molten state, the simulation using the experimental data produced 1.67% more shrinkage than the one using the data from Moldflow®. Therefore, this method showed the possibility of using an IMM together with a hot runner manifold to study the P–V–T properties of thermoplastics under industrial conditions. Hence, product defects that resulted from the characteristics of the plastic can be studied in detail on site. Furthermore, the proposed method can also be utilized to provide P–V–T data for new materials that are not yet available in the databases of simulation software solutions.

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References

  1. Kim, J., & Lee, J. Y. (2023). Development of a quality prediction algorithm for an injection molding process considering cavity sensor and vibration data. International Journal of Precision Engineering and Manufacturing. https://doi.org/10.1007/s12541-023-00792-w

    Article  Google Scholar 

  2. Yadav, S. K., Sikidar, A., & Kalyanasundaram, D. (2023). Design of polymeric orthopedic screws with variable stiffness and multi-objective optimization of injection molding process. International Journal of Precision Engineering and Manufacturing, 24, 629–643. https://doi.org/10.1007/s12541-023-00775-x

    Article  Google Scholar 

  3. Nguyen, T. K., Hwang, C. J., & Lee, B. K. (2017). Numerical investigation of warpage in insert injection-molded lightweight hybrid products. International Journal of Precision Engineering and Manufacturing, 18, 187–195. https://doi.org/10.1007/s12541-017-0024-5

    Article  Google Scholar 

  4. Nguyen, T. K., Chau Duc, K., & Pham, A. D. (2023). Characterization of an FDM-3D printed moldcore in a thermoforming process using taguchi in conjunction with lumped-capacitance method. Arabian Journal for Science and Engineering. https://doi.org/10.1007/s13369-023-07646-7

    Article  Google Scholar 

  5. Forstner, R., Peters, G. W. M., & Meijer, H. E. H. (2009). A novel dilatometer for PVT measurements of polymers at high cooling: And shear rates. International Polymer Processing, 24, 114–121.

    Article  Google Scholar 

  6. Wang, J. (2012). PVT properties of polymers for injection molding. In Some critical issues for injection molding. IntechOpen

  7. Menges, G., & Thienel, P. (1977). Pressure-specific Volume–Temperature behavior of thermoplastics under normal processing conditions. Polymer Engineering & Science, 17, 758–763.

    Article  Google Scholar 

  8. Luyé, J. F., Régnier, G., Le Bot, P., Delaunay, D., & Fulchiron, R. (2001). PVT measurement methodology for semicrystalline polymers to simulate injection-molding process. Journal of Applied Polymer Science, 79, 302–311. https://doi.org/10.1002/1097-4628(20010110)79:2%3c302::AID-APP120%3e3.0.CO;2-I

    Article  Google Scholar 

  9. Sun, X., Su, X., Tibbenham, P., et al. (2016). The application of modified PVT data on the warpage prediction of injection molded part. Journal of Polymer Research, 23, 86.

    Article  Google Scholar 

  10. Jachowicz, T., Gajdos, I., & Krasinskiy, V. (2019). Numerical modeling of p-v-T rheological equation coefficients for polypropylene with variable chalk content. Open Engineering, 9, 668–673.

    Article  Google Scholar 

  11. Wang, J., Hopmann, C., Schmitz, M., & Hohlweck, T. (2019). Influence of measurement processes on pressure-specific Volume–Temperature relationships of semi-crystalline polymer: Polypropylene. Polymer Testing, 78, 105992.

    Article  Google Scholar 

  12. Wang, J., Hopmann, C., Kahve, C., Hohlweck, T., & Alms, J. (2020). Measurement of specific volume of polymers under simulated injection molding processes. Materials & Design, 196, 109136.

    Article  Google Scholar 

  13. Wang, J., Hopmann, C., Röbig, M., Hohlweck, T., & Alms, J. (2020). Modeling of pressure-specific Volume–Temperature behavior of polymers considering the dependence of cooling and heating processes. Materials & Design, 196, 109110.

    Article  Google Scholar 

  14. Wang, J., Hopmann, C., Schmitz, M., & Hohlweck, T. (2020). Process dependence of pressure-specific Volume–Temperature measurement for amorphous polymer: Acrylonitrile-butadiene-styrene. Polymer Testing, 81, 106232.

    Article  Google Scholar 

  15. Baumgärtner, F., & Bonten, C. (2020). Approach for the description of PvT behavior of thermoplastics at high cooling rates. AIP Conference Proceedings, 2289, 020010.

    Article  Google Scholar 

  16. Chakravorty, S. (2002). PVT testing of polymers under industrial processing conditions. Polymer Testing, 21, 313–317.

    Article  Google Scholar 

  17. Tardif, X., et al. (2013). A new PvT device for the thermoplastics characterization in extreme thermal conditions. Key Engineering Materials, 554–557, 1619–1627.

    Article  Google Scholar 

  18. Freytag, R., Gil, J. A. P., & Forstner, R. (2015). pvT-behavior of polymers under processing conditions and implementation in the process simulation. Materials Science Forum, 825–826, 677–684.

    Article  Google Scholar 

  19. Wang, J., Xie, P., Yang, W., & Ding, Y. (2010). Online pressure-Volume–Temperature measurements of polypropylene using a testing mold to simulate the injection-molding process. Journal of Applied Polymer Science, 118, 200–208.

    Article  Google Scholar 

  20. Szabó, F., & Kovács, J. (2012). Development of a novel Pvt measuring technique. Materials Science Forum, 729, 126–131.

    Article  Google Scholar 

  21. Quach, A., & Simha, R. (1971). Pressure-Volume–Temperature properties and transitions of amorphous polymers; polystyrene and poly (orthomethylstyrene). Journal of Applied Physics, 42, 4592–4606.

    Article  Google Scholar 

  22. Zoller, P., Bolli, P., Pahud, V., & Ackermann, H. (1976). Apparatus for measuring pressure–volume–temperature relationships of polymers to 350 °C and 2200 kg/cm2. Review of Scientific Instruments, 47, 948–952.

    Article  Google Scholar 

  23. Sato, Y., Yamasaki, Y., Takishima, S., & Masuoka, H. (1997). Precise measurement of the PVT of polypropylene and polycarbonate up to 330°C and 200 MPa. Journal of Applied Polymer Science, 66, 141–150.

    Article  Google Scholar 

  24. Zuidema, H., Peters, G. W. M., & Meijer, H. E. H. (2001). Influence of cooling rate on pVT-data of semicrystalline polymers. Journal of Applied Polymer Science, 82, 1170–1186.

    Article  Google Scholar 

  25. Chiu, C.-P., Liu, K.-A., & Wei, J.-H. (1995). A method for measuring PVT relationships of thermoplastics using an injection molding machine. Polymer Engineering & Science, 35, 1505–1510.

    Article  Google Scholar 

  26. Wang, J., Xie, P., Ding, Y., & Yang, W. (2009). On-line PVT properties of amorphous polymers. Advanced Materials Research, 87–88, 216–221.

    Article  Google Scholar 

  27. Wang, J., Xie, P., Ding, Y., & Yang, W. (2009). On-line testing equipment of P-V–T properties of polymers based on an injection molding machine. Polymer Testing, 28, 228–234.

    Article  Google Scholar 

  28. Szabó, F., & Kovács, J. (2014). Development of a pressure-Volume–Temperature measurement method for thermoplastic materials based on compression injection molding. Journal of Applied Polymer Science, 131(23), 41140.

    Article  Google Scholar 

  29. Hopmann, C., Theunissen, M., & Heinisch, J. (2019). Online analysis of melt viscosity during injection moulding with a hot runner rheometer. AIP Conference Proceedings, 2055, 070022.

    Article  Google Scholar 

  30. Gon, K. J., Hyungsu, K., Soo, K. H., & Wook, L. J. (2004). Investigation of pressure-Volume–Temperature relationship by ultrasonic technique and its application for the quality prediction of injection molded parts. Korea-Australia Rheology Journal, 16, 163–168.

    Google Scholar 

  31. Michaeli, W., Hentschel, M. P., Lingk, O. (2007). A novel approach for measuring the specific volume of (semi-crystalline) polymers at elevated cooling rates using X-rays. In Society of plastics engineers annual technical conference (pp. 1608–1612).

  32. Kim, S. K., & Jeong, A. (2019). Numerical simulation of crystal growth in injection molded thermoplastics based on Monte Carlo method with shear rate tracking. International Journal of Precision Engineering and Manufacturing, 20, 641–650. https://doi.org/10.1007/s12541-019-00089-x

    Article  Google Scholar 

  33. Spina, R., Spekowius, M., Dahlmann, R., et al. (2014). Analysis of polymer crystallization and residual stresses in injection molded parts. International Journal of Precision Engineering and Manufacturing, 15, 89–96. https://doi.org/10.1007/s12541-013-0309-2

    Article  Google Scholar 

  34. Castillo, M. M. (2002). A hot runner manifold using as a PVT apparatus. Doctor of Engineering in Plastic Engineering, Faculty of Plastic Engineering, University of Massachusets Lowell.

  35. Nawab, Y., Shahid, S., Boyard, N., & Jacquemin, F. (2013). Chemical shrinkage characterization techniques for thermoset resins and associated composites. Journal of Materials Science, 48, 5387–5409.

    Article  Google Scholar 

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Authors and Affiliations

  1. Faculty of Mechanical Engineering, Industrial University of Ho Chi Minh City, Ho Chi Minh City, Vietnam

    Trieu Khoa Nguyen

  2. Faculty of Mechanical Engineering, The University of Danang – University of Science and Technology, Danang City, Vietnam

    Anh-Duc Pham

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Nguyen, T.K., Pham, AD. An Investigation on Pressure-Specific Volume–Temperature Behaviors of a Thermoplastic Under Industrial Conditions Using a Hot Runner Manifold. Int. J. Precis. Eng. Manuf. 24, 1845–1853 (2023). https://doi.org/10.1007/s12541-023-00847-y

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