Effect of Chemical Foaming Agent in Enhancing Dispersion of Montmorillonite in Polypropylene Nanocomposite

Authors

  • Ozan Azguler Yildiz Technical University, Department of Mechanical Engineering Faculty, Besiktas, Istanbul, 34349, Turkey
  • Meltem Eryildiz Yildiz Technical University, Department of Mechanical Engineering Faculty, Besiktas, Istanbul, 34349, Turkey
  • Mirigul Altan Yildiz Technical University, Department of Mechanical Engineering Faculty, Besiktas, Istanbul, 34349, Turkey

DOI:

https://doi.org/10.6000/1929-5995.2019.08.01

Keywords:

Nano montmorillonite, polypropylene, melt mixing, dispersion, mechanical strength.

Abstract

Homogenous dispersion of the nano particles in the polymer matrix is a key factor in order to achieve enhanced properties of the polymer nanocomposites. Dispersion or exfoliation of nano clay is difficult in the matrix during melt mixing. In this study, dispersion of nano montmorillonite (MMT) in polypropylene (PP) was done by using chemical foaming agent during melt mixing process. Chemical foaming agent (CFA) added (1 %wt.) PP/MMT nanocomposites were prepared on twin screw extruder. Then, injection molding was done to the granulated nanocomposites in order to obtain tensile test samples. Thermal test and morphological investigations were done. Tensile test was applied to observe the difference in mechanical strength of the nanocomposites depending on the presence of the foaming agent during melt mixing process. The results have shown that, dispersion of MMT enhanced in the matrix due to addition of chemical foaming agent. This brought improved tensile strength about 19% for the PP/MMT nanocomposites within same concentrations of nano filler.

References

Pinnavaia TJ, Beall GW. Polymer-clay nanocomposites. London: Wiley 2000.

Choudalakis G, Gotsis AD. Permeability of polymer/clay nanocomposites: r review. European Polym J 2009; 45(4): 967-84. https://doi.org/10.1016/j.eurpolymj.2009.01.027 DOI: https://doi.org/10.1016/j.eurpolymj.2009.01.027

Kojima Y, Fukumori K, Usuki A, Okada A, Kurauchi T. Gas permeabilities in rubber clay hybrid. J of Mater Sci Letters 1993; 12(12): 889-90. https://doi.org/10.1007/BF00455608 DOI: https://doi.org/10.1007/BF00455608

Kojima Y, Usuki A, Kawasumi M, Okada A, Kurauchi T, Kamigaito O. Sorption of water in nylon-6 clay hybrid. J of App Polymer Sci 1993; 49(7): 1259-64. https://doi.org/10.1002/app.1993.070490715 DOI: https://doi.org/10.1002/app.1993.070490715

Arora A, Choudhary V, Sharma DK. Effect of clay content and clay/surfactant on the mechanical, thermal and barrier properties of polystyrene/organoclay nanocomposites. J of Polym Research 2011; 18(4): 843-57. https://doi.org/10.1007/s10965-010-9481-6 DOI: https://doi.org/10.1007/s10965-010-9481-6

Manias E, Touny A, Wu L, Strawhecker K, Lu B, Chung TC. Polypropylene/ Montmorillonite nanocomposites. Review of the synthetic routes and materials properties. Chem of Materials 2001; 13(10): 3516-23. https://doi.org/10.1021/cm0110627 DOI: https://doi.org/10.1021/cm0110627

Pagacz J, Pielichowski K. Preparation and characterization of PVC /montmorillonite nanocomposites- a review. J of Vinyl & Additive Technology 2009; 15(2): 61-76. https://doi.org/10.1002/vnl.20186 DOI: https://doi.org/10.1002/vnl.20186

Kojima Y, Usuki A, Kawasumi M, Okada A, Fukushima Y, Kurauchi T, Kamigaito O. Mechanical properties of nylon 6-clay hybrid. J of Materials Research 1993; 8(5): 1185-9. https://doi.org/10.1557/JMR.1993.1185 DOI: https://doi.org/10.1557/JMR.1993.1185

Garcia-Lopez D, Picazo O, Merino JC, Pastor JM. Polypropylene-clay nanocomposites: effect of compatibilizing agents on clay dispersion. European Polymer Journal 2003; 39: 945-50. https://doi.org/10.1016/S0014-3057(02)00333-6 DOI: https://doi.org/10.1016/S0014-3057(02)00333-6

Hasegawa N, Okamoto H, Kato M, Usuki A. Preparation and Mechanical Properties of Polypropylene-Clay Hybrids Based on Modified Polypropylene and Organophilic Clay. J of Polym Sci 2000; 78(11): 1918-22. https://doi.org/10.1002/1097-4628(20001209)78:11<1918::AID-APP100>3.0.CO;2-H DOI: https://doi.org/10.1002/1097-4628(20001209)78:11<1918::AID-APP100>3.0.CO;2-H

Lopez-Quintanilla ML, Sanchez-Valdes S, Ramos de Valle LF, Medellin-Rodriguez FJ. Effect of Some Compatibilizing Agents on Clay Dispersion of Polypropylene-Clay Nanocomposites, J of Appl Polym Sci 2006; 100(6): 4748-56. https://doi.org/10.1002/app.23262 DOI: https://doi.org/10.1002/app.23262

Tjong SC, Bao SP, Liang GD. Polypropylene/Montmorillonite Nanocomposites Toughened with SEBS-g-MA: Structure-Property Relationship. J of Polym Sci Part B: Polymer Physics 2005; 43(21): 3112-26. https://doi.org/10.1002/polb.20596 DOI: https://doi.org/10.1002/polb.20596

Mittal V. Polymer Nanocomposite Foams, 1st ed. USA: CRC Press 2014. https://doi.org/10.1201/b15572 DOI: https://doi.org/10.1201/b15572

Leung SN, Wong A, Wang LC, Park CB. Mechanism of extensional stress-induced cell formation in polymeric foaming processes with the presence of nucleating agents. Journal of Supercritical Fluids 2012; 63: 187-98. https://doi.org/10.1016/j.supflu.2011.12.018 DOI: https://doi.org/10.1016/j.supflu.2011.12.018

Downloads

Published

2019-08-27

How to Cite

Azguler, O., Eryildiz, M., & Altan, M. (2019). Effect of Chemical Foaming Agent in Enhancing Dispersion of Montmorillonite in Polypropylene Nanocomposite. Journal of Research Updates in Polymer Science, 8, 1–6. https://doi.org/10.6000/1929-5995.2019.08.01

Issue

Section

Articles