Effect of the Recycled Rubber on the Properties of Recycled Rubber/Recycled Polypropylene Blends

Main Article Content

Erwin Ciro http://orcid.org/0000-0002-7673-3556
Jorge Parra http://orcid.org/0000-0003-0663-0129
Manuel Zapata http://orcid.org/0000-0001-5835-9065
Edwin A Murillo https://orcid.org/0000-0002-0617-2327

Keywords

recycled polypropylene, recycled rubber, blends, properties

Abstract

This study evaluates the influence of recycled rubber (RR) with a specific particle size in the properties of blends, blended recycled polypropylene/polyethylene (RPP) and RR (RPP/RR). The proportions of RPP/RR employed to obtain the blends were as follows: 90/10 (PP90), 75/25 (PP75), 60/40 (PP60) and 45/55 (PP45). The particle size of the RR employed was 850 µm . The properties of the blends were evaluated by rheometric, thermogravimetric (TGA), differential scanning calorimetric (DSC), scanning electronic microscopy (SEM), density, melt flow index and tensile analysis. The maximum torque increased with the RPP content. By DSC analysis, it was observed that the RPP exhibited two melting temperatures, the first corresponded to low density polyethylene (LDPE) and the second to polypropylene (PP). Furthermore, the RR affected the crystallinity of the RPP. By using SEM and TGA analyses, it was determined that the RPP as well as RR contained fillers. The blend densities were higher than those of RPP. The melt flow index exhibited a trend with the amount of RR.

PACS: 61.25.hk, 83.80.Va, 81.05.Lg

Downloads

Download data is not yet available.
Abstract 1373 | PDF Downloads 640 HTML Downloads 713

References

[1] E. A. Murillo and B. L. Lopez, “Study of the Impact Resistance of Physically and Dynamically Vulcanized Mixtures of PP/EPDM,” Macromolecular Symposia, vol. 242, no. 1, pp. 131–139, 2006. [Online]. Available: http://dx.doi.org/10.1002/masy.200651020

[2] M. Guzmán and E. A. Murillo, “Funcionalización de polietileno de baja densidad con anhídrido maleico en estado fundido,” Polímeros, vol. 24, no. 2, pp. 162–169, 2014. [Online]. Available: http://dx.doi.org/10.4322/polimeros.2014.034

[3] E. A. Murillo, P. P. Vallejo, and B. L. López, “Effect of tall oil fatty acid content on the properties of novel hyperbranched alkyd resins,” Journal of Applied Polymer Science, vol. 120, no. 6, pp. 3151–3158, 2011. [Online]. Available: http://dx.doi.org/10.1002/app.33502

[4] A. der Waal, “Polypropylene–rubber blends: 1. The effect of the matrix properties on the impact behavior,” Polymer, vol. 39, no. 26, pp. 6781–6787, 1998. [Online]. Available: http://dx.doi.org/10.1016/S0032-3861(98)00170-0

[5] S. Ling, “Prediction of mechanical properties of polypropylene/waste ground rubber tire powder treated by bitumen blends via uniform design and artificial neural networks,” Materials and Design, vol. 31, no. 4, pp. 1900–1905, 2010. [Online]. Available: http://dx.doi.org/10.1016/j.matdes.2009.10.057

[6] M. M. Hassan, N. A. Badway, A. M. Gamal, M. Y. Elnaggar, and E. A. Hegazy, “Studies on mechanical, thermal and morphological properties of irradiated recycled polyamide and waste rubber powder blends,” Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions
with Materials and Atoms, vol. 268, no. 9, pp. 1427–1434, 2010. [Online]. Available: http://dx.doi.org/10.1016/j.nimb.2010.01.021

[7] H. Ismail, D. Galpaya, and Z. Ahmad, “The compatibilizing effect of epoxy resin (EP) on polypropylene (PP)/recycled acrylonitrile butadiene rubber (NBRr) blends,” Polymer Testing, vol. 28, no. 4, pp. 363–462, 2009. [Online]. Available: http://dx.doi.org/10.1016/j.polymertesting.2008.11.007

[8] M. Awang, H. Ismail, and M. A. Hazizan, “Polypropylene–based blends containing waste tire dust: Effects of trans–polyoctylene rubber (TOR) and dynamic vulcanization,” Polymer Testing, vol. 26, no. 6, pp. 779–787, 2007. [Online]. Available: http://dx.doi.org/10.1016/j.polymertesting.2007.04.007

[9] A. der Waal, R. Nijhof, and R. J. Gaymans, “Polypropylene-rubber blends: 2. The effect of the rubber content on the deformation and impact behavior,” Polymer, vol. 40, no. 22, pp. 6031–6044, 1999. [Online]. Available: http://dx.doi.org/10.1016/S0032-3861(99)00213-X

[10] J. Jose, S. Satapathy, A. Nag, and G. B. Nando, “Modification of Waste Polypropylene with Waste Rubber Dust from Textile Cot Industry and its Characterization,” Process Safety and Environmental
Protection, vol. 85, no. 4, pp. 318–326, 2007. [Online]. Available: http://dx.doi.org/10.1205/psep06045

[11] W. Salgueiro, A. Somozaa, A. J. Marzocca, G. Consolati, and F. Quasso, “Evolution of the crosslink structure in the elastomers NR and SBR,” Radiation Physics and Chemistry, vol. 76, no. 2, pp. 142–145, 2007. [Online]. Available: http://dx.doi.org/10.1016/j.radphyschem.2006.03.019

[12] D. G. Dikobe and A. S. Luyt, “Comparative study of the morphology and properties of PP/LLDPE/wood powder and MAPP/LLDPE/wood powder polymer blend blends,” eXPRESS Polymer
Letters, vol. 4, no. 11, pp. 729–741, 2010. [Online]. Available: http://dx.doi.org/10.3144/expresspolymlett.2010.88

[13] N. Mohamad, N. S. Zainol, F. F. Rahim, H. E. Maulod, T. A. Rahim, S. R. Shamsuri, M. A. Azam, M. Y. Yaakub, M. F. Abdollah, and M. E. Manaf, “Mechanical and Morphological Properties of Polypropylene/Epoxidized Natural Rubber Blends at Various Mixing Ratio,” Procedia Engineering, vol. 68, pp. 439–445, 2013. [Online]. Available: http://dx.doi.org/10.1016/j.proeng.2013.12.204

[14] L. S. Montagna, L. S. Bento, M. R. da Silva Silveira, and R. M. Campomanes, “Evaluation of the Effect of the Incorporation of Rubber Tire Waste Particles on the Properties of PP, HIPS and PP/HIPS
Matrices,” Polímeros, vol. 23, no. 2, pp. 169–174, 2013. [Online]. Available: http://dx.doi.org/10.4322/polimeros.2013.077

[15] Sivaraos, T. C. Yap, Qumrul, M. A. Amran, T. J. S. Anand, R. Izamshah, and A. A. Aziz, “Friction Performance Analysis of Waste Tire Rubber Powder Reinforced Polypropylene Using Pin-On-Disk Tribometer,” Procedia Engineering, vol. 68, pp. 743–749, 2013. [Online]. Available:
http://dx.doi.org/10.1016/j.proeng.2013.12.248

[16] E. E. Ferg and L. L. Bolo, “A correlation between the variable melt flow index and the molecular mass distribution of virgin and recycled polypropylene used in the manufacturing of battery cases,” Polymer Testing, vol. 32, no. 8, pp. 1452–1459, 2013. [Online]. Available: http://dx.doi.org/10.1016/j.polymertesting.2013.09.009

[17] Y. Ruksakulpiwat, J. Sridee, N. Suppakarn, and W. Sutapun, “Improvement of impact property of natural fiber-polypropylene blend by using natural rubber and EPDM rubber,” Blends Part B: Engineering, vol. 40, pp. 619–622, 2009. [Online]. Available: http://dx.doi.org/10.1016/j.compositesb.2009.04.006