Acta Mechanica Slovaca 2019, 23(3):24-29 | DOI: 10.21496/ams.2020.003

Investigation of Injection Shrinkage of Composite Moldings with Mineral Filler

Tomasz Jachowicz1, Volodymyr Krasinskyi2
1 Lublin University of Technology, Faculty of Mechanical Engineering, Department of Polymer Processing; Poland, 20-618 Lublin, Nadbystrzycka 36
2 Lviv Polytechnic National University, Department of Chemical Technology of Plastics, Ukraine, 79013 Lviv, 12 S. Bandera str.

The paper presents the injection shrinkage of composite moldings with mineral filler phenomenon. The definition of shrinkage and shrinkage types are described. The main factors affecting shrinkage value of injection-molded part are discussed. Based on the experimental tests conducted using injection-molded parts made from polypropylene filled with glass fiber and talc, the dependence of injection-molded part shrinkage on filler content and selected parameters of the injection molding process has been determined.

Keywords: polymer processing; injection molding; shrinkage; filler; composite injection-molded part.

Published: September 27, 2019  Show citation

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Jachowicz, T., & Krasinskyi, V. (2019). Investigation of Injection Shrinkage of Composite Moldings with Mineral Filler. Acta Mechanica Slovaca, 23(3), 24-29. doi: 10.21496/ams.2020.003
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    References

    1. Bociąga E., Jaruga T., Sikora R.: Wybrane zagadnienia wtryskiwania precyzyjnego. Cz. II. Czynniki wpływające na jakość wyprasek precyzyjnych. Polimery 2009, 54, 7-8, 522-529. Go to original source...
    2. Bociąga E.: Specjalne metody wtryskiwania tworzyw polimerowych. WNT, Warszawa 2008.
    3. Dulebova L., Greškovič F., Spišák E., Duleba B., Garbacz T.: The impact of the amount of filler on the properties of polymer materials. Kovárenství 2012, 44, 33-36.
    4. Fisher J. M.: Handbook of molded part shrinkage and warpage. Plastic Design Library, William Andrew Inc., Norwich 2003. Go to original source...
    5. Gershon A. L, Gyger L. S., Bruck H. A., Gupta S. K.: Thermoplastic polymer shrinkage in emerging molding processes. Experimental Mechanics 2008, 48, 6, 789-798. Go to original source...
    6. Youngjae Ryu, Joo Seong Sohn, Byung Chul Kweon, Sung Woon Cha: Shrinkage Optimization in Talc- and Glass-Fiber-Reinforced Polypropylene Composites. Materials 2019, 12, 764; doi:10.3390/ma12050764. Go to original source...
    7. Kazmer D. O.: Injection mold design engineering. Carl Hanser Verlag, Munich 2007. Go to original source...
    8. Kwon K., Isayev A. I., Kim K. H., van Sweden C.: Theoretical and experimental studies of anisotropic shrinkage in injection moldings of semicrystalline polymers. Polymer Engineering & Science 2006, 46, 6, 712-728. Go to original source...
    9. Malloy R. A.: Plastic Part Design for Injection Molding. An Introduction. Carl Hanser Verlag, Munich 1994.
    10. Polyplastics catalogue: Acetal Copolymer Duracon M90-44. Datasheet. Polyplastics Digital Library (www.polyplastics.com).
    11. Postawa P.: Skurcz przetwórczy wyprasek a warunki wtryskiwania. Polimery 2005, 50, 3, 201-207. Go to original source...
    12. Rosato D. V., Rosato D. V., Rosato M. G.: Injection Molding Handbook. Kluwer Academic Publisher, Norwell 2000. Go to original source...
    13. Shelesh-Nezhad K., Taghizadeh A.: Shrinkage behavior and mechanical performances of injection molded polypropylene/talc composites. Polymer Engineering & Science 47, 12, 2007, 2124-2128. Go to original source...
    14. Sikora J. W., Greškovič F.: Wpływ rodzaju napełniacza oraz czasu ochładzania na właściwości mechaniczne wyprasek wtryskowych z osnową polipropylenową. Przetwórstwo tworzyw 2010, 16, 5, 273-279.
    15. Sikora R., Jachowicz T.: Wpływ czasu ochładzania na skurcz przetwórczy wytworów otrzymanych metodą wytłaczania z rozdmuchiwaniem. Polimery 2000, 45, 10, 713-719. Go to original source...
    16. Sikora R.: Przetwórstwo tworzyw wielkocząsteczkowych. Wydawnictwo Edukacyjne. Warszawa 1993.
    17. Slota J., Spišák E., Gajdoš I.: Modern approaches in development of plastic products. Journal for Technology of Plasticity, 34, 1-2, 2009, 97-104.
    18. Smorawiński A.: Technologia wtrysku. WNT, Warszawa 1989.
    19. Yang S. S., Kwon T. H.: Numerical and experimental investigation of shrinkage behavior of precision injection molded articles. Polymer Engineering & Science 2008, 48, 8, 1569-1583. Go to original source...
    20. Zawistowski H., Frenkler D.: Konstrukcja form wtryskowych do tworzyw termoplastycznych. Wydawnictwo Poradników i Książek Technicznych Plastech, Warszawa 2003.Table 1: Value of linear primary shrinkage [16].

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