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Licensed Unlicensed Requires Authentication Published by De Gruyter June 30, 2014

Mold Filling Simulation Dependence on Material Data Input for Injection Molding Process of Natural Rubber Compound

  • T. H. Khang and Z. M. Ariff


The influence of material data input towards the mold filling behavior of a natural rubber compound during an injection molding process was investigated. A commercial injection molding software (Cadmould) was utilized in evaluating the effect of using experimentally obtained material data on the mold filling progression in comparison to the actual injection molding procedure. The experimental rheological data were measured using a capillary rheometer and subsequently, the Carreau and Cross models were used to acquire the rheological parameters by curve fitting and extrapolation procedures. The cure kinetics data were obtained by employing a cure rheometer technique along with utilization of empirical approach through application of mathematical models proposed by Claxton–Liska and Deng–Isayev. It was discovered that the acquired data were able to function as reliable material data input as they were comparable with related data available in the software materials' database. Verification of the simulated filling profiles by experimental short shots specimens showed that the software Rubber Package was able to predict the realistic filling behavior of the formulated natural rubber compound inside the mold cavity when the measured material data were utilized. Whereas, the usage of available material data from the software database failed to model the mold filling progression of the prepared natural rubber compound.

* Mail address: Zulkifli Mohammed Ariff, School of Materials and Mineral Resources Engineering, Engineering Campus, Universiti Sains Malaysia, 14300, Nibong Tebal, Penang, Malaysia, E-mail:


Abhilash, P. M., Kannan, K. and Varkey, B.Simulation of Curing of a Slab of Rubber”, Mater. Sci. Eng., B, 168, 237241 (2010) 10.1016/j.mseb.2009.12.035Search in Google Scholar

Ariff, Z. M., “Melt Rheology and Injection Moulding of Acrylonitrile-Butadiene-Styrene (ABS) Using a Capillary Rheometer”, Ph.D., Materials and Mineral Resources Engineering, Ph.D Thesis, Universiti Sains Malaysia (2003)Search in Google Scholar

Arrillaga, A., Zaldua, A., Atxurra, R. M. and Farid, A. S., “Techniques Used for Determining Cure Kinetics of Rubber Compounds”, Eur. Polym. J., 43, 47834799 (2007) 10.1016/j.eurpolymj.2007.08.024Search in Google Scholar

Arrillaga, A., Zaldua, A. and Farid, A. S., “Evaluation of Injection-Molding Simulation Tools to Model the Cure Kinetics of Rubbers”, J. Appl. Polym. Sci., 123, 14371454 (2012) 10.1002/app.33880Search in Google Scholar

Berginc, B., Brezocnik, M., Kampus, Z. and SustarsicB., “A Numerical Simulation of Metal Injection Moulding”, Mater. Technol., 43, 4348 (2009)Search in Google Scholar

Binard, C., Anderson, D., Lapalu, L. and Planche, J. P., “Zero Shear Viscosity of Modified and Unmodified Binders”, 3rd Eurasphalt & Eurobitume Congress, 17211733 (2004)Search in Google Scholar

Bociga, E., Jaruga, T., “Experimental Investigation of Polymer Flow in Injection Moulding”, Archives of Materials Science and Engineering, 28, 165172 (2007)Search in Google Scholar

Ghoreishy, M. H. R., “Chapter 11 Numerical Simulation of the Curing Process of Rubber Articles”, in Computational Materials, Oster, W.U., (Ed.), 1st Vol., Nova Science, New York (2009)Search in Google Scholar

Hamed, G. R.Chapter 2 Materials and Compound”, in Engineering with Rubber: How to Design Rubber Components. Gent, A. N. (Ed.), Hanser, Munich, New York, p. 1134 (2001)Search in Google Scholar

Isayev, A. I., “Injection and Compression Moulding Fundamentals”, in Plastics Engineering. Isayev, A. I. (Ed.) 15th Vol., CRC Press, Marcel Dekker, New York (1987)Search in Google Scholar

Kallien, L. H., “Paper No. 6: 3D Simulation for Rubber Injection Moulding – A New Tool for Process Optimisation”, in Innovations in Rubber, Book of Papers: A One Day Seminar, Rapra Technology, Shawbury, Shrewsbury, Shropshire (1999)Search in Google Scholar

Khang, T., Ariff, Z., “Vulcanization Kinetics Study of Natural Rubber Compounds Having Different Formulation Variables”, J. Therm. Anal. Calorim., 109, p. 15451553 (2011) 10.1007/s10973-011-1937-3Search in Google Scholar

Koszkul, J., Nabialek, J., “Viscosity Models in Simulation of the Filling Stage of the Injection Molding Process”, J. Mater. Process. Technol., 157–158, 183187 (2004)10.1016/j.jmatprotec.2004.09.027Search in Google Scholar

Kyas, K., Stanek, M., Manas, M., Manas, D., Krumal, M. and Cerny, J., “Polymer Injection Molding Process Simulation”, 21st International DAAAM Symposium. 10811082 (2010)Search in Google Scholar

Kyas, K., Stanek, M., Manas, M., Manas, D., Krumal, M. and Holik, Z., “Simulation of Ruber Injection Molding Process”, Chemicke listy, 105), 354356 (2011)Search in Google Scholar

Leblanc, J. L.: “Rubber Processing through Rheology,” in Polymers for Fibers and Elastomers, Arthur, Jr.J. C, Diefendorf, R. J., Yen, T. F., Needles, H. L., Schaefgen, J. R., Jaffe, M., Logothetis, A. L. (Eds.), 260st Vol., American Chemical Society, p. 183206 (1984)Search in Google Scholar

Liang, J. Z., “Characteristics of Melt Shear Viscosity during Extrusion of Polymers”, Polym. Test., 21, 307311 (2002) 10.1016/S0142-9418(01)00088-5Search in Google Scholar

Lindsay, J. A.Report No. 109: Rubber Injection Moulding: A Practical Guide”, in Rapra Review Report: Expert Overviews Covering the Science and Technology of Rubber and Plastics, Vol. 10, Rapra Technology, Shawbury, Shrewsbury, Shropshire (2000)Search in Google Scholar

Mark, J. E., Eirich, F. R.: Science and Technology of Rubbe, Academic Press, London (2005)Search in Google Scholar

Marzocca, A. J., Goyanes, S.An Analysis of the Influence of the Accelerator/Sulfur Ratio in the Cure Reaction and the Uniaxial Stress-Strain Behavior of SBR”, J. Appl. Polym. Sci., 91, 26012609 (2004) 10.1002/app.13463Search in Google Scholar

Marzocca, A. J., Mansilla, M. A., “Vulcanization Kinetic of Styrene-Butadiene Rubber by Sulfur/TBBS”, J. Appl. Polym. Sci., 101, 3541, (2006) 10.1002/app.23173Search in Google Scholar

NabialekJ., Koszkul, J. and Gnatowski, A., “Expectation of the Parts Quality on the Ground the Simulation of the Injection Moulding Process”, Archives of Materials Science and Engineering, 32, 109112 (2008)Search in Google Scholar

Nabialek, J., Kwiatkowski, D. and Gnatowski, A., “Experimental Validation of Polymer Composite Injection Moulding Process Simulation”, Kompozyty, 11, 283287 (2011)Search in Google Scholar

Nabialek, J., Koszkul, J., “The Influence of Input Data on the Results of Injection Molding Process Simulation”, Paper presented at the 13th International Scientific Conference on Achievements in Mechanical and Materials Engineering, Gliwice-Wisła (2005)Search in Google Scholar

Negami, S., Wargin, R. V., “Determination of True Flow Curves from Capillary Rheometer Data”, J. Appl. Polym. Sci., 12, 123129 (1968) 10.1002/app.1968.070120111Search in Google Scholar

Niemi, A., “Successful Take Up of Cold Runner Technology in Injection Moulds”, Proceeding of The Sim-Serv Virtual Institute. 20, (2004), in Google Scholar

Ramorino, G., Girardi, M., Agnelli, S., Franceschini, S, Baldi, F., Vigano, F. and Ricco, T., “Injection Molding of Engineering Rubber Components: A Comparison between Experimental Results and Numerical Simulation”, Int. J. Mater. Form., 3, 551554 (2010) 10.1007/s12289-010-0829-6Search in Google Scholar

Shin, H., Park, E. S., “Analysis of Crack Phenomenon for Injection-Molded Screw Using Moldflow Simulation”, J. Appl. Polym. Sci., 113, 27022708 (2009) 10.1002/app.30412Search in Google Scholar

Stanek, M., Manas, D., Manas, M. and Javoric, J., “Simulation of Injection Molding Process by Cadmould Rubber”, International Journal of Mathematics and Computer in Simulation, 5, 422429 (2011)Search in Google Scholar

Sykutera, D., “The Use of Injection Moulding Process Simulation Software Cadmould for Injection Mould Designing”, Polish Cimac, 5, (2010)Search in Google Scholar

Ture, T., Oy, E.Simulation Applications and Benefits in Developing and Manufacturing Rubber and Plastic Products”, Proceeding of The Sim-Serv Virtual Institute. 20, (2004), in Google Scholar

Received: 2014-01-20
Accepted: 2014-01-30
Published Online: 2014-06-30
Published in Print: 2014-07-30

© 2014, Carl Hanser Verlag, Munich

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