Study of Tensile Properties of Recycled Polypropylene with Glass Fibers at Different Temperature


Article Preview

This research paper studies the influence of preparation method of recycled polymer material with glass fibers on the tensile properties of the final product. The recycled material was made from polypropylene, which originally contained 30 % of glass fibers. It was divided into fractions using size of the crushed particles. These fractions ranged from large particles, similar to the original material, to small dust particles. Measurements were performed at various temperatures. It was found that the mixture of dust particles showed a large decrease in measured properties. It is mainly due to shortening of the large glass fibers, so that it no longer fulfills its function as reinforcing filler. Conversely, mixture with larger particles did not show a significant decrease in properties compared to the original material.



Edited by:

Dr. Tibor Krenický and Dr. Štefánia Olejárová




V. Senkerik et al., "Study of Tensile Properties of Recycled Polypropylene with Glass Fibers at Different Temperature", Key Engineering Materials, Vol. 756, pp. 11-18, 2017

Online since:

September 2017




* - Corresponding Author

[1] L. Scelsi et al., A Review on Composite Materials Based on Recycled Thermoplastics and Glass Fibres, Plastics, Rubber and Composites 40 (2011) 1-10.

[2] V. Goodship, Introduction to plastics recycling, 2nd Ed., Shawbury, UK, Smithers Rapra, 2007, 174 p.

[3] F.P. La Mantia, Recycling of plastic materials, Toronto, Canada, ChemTec Pub., 1993, 189 p.

[4] T. Krenický, P. Jacko, Simultaneous temperature monitoring using virtualization, in: Scientific Papers: Operation and diagnostics of machines and production systems operational states. Lüdenscheid: RAM-Verlag, 2009, pp.58-62.

[5] J. Brandrup (ed. ), Recycling and recovery of plastics, Munich, Hanser Verlag, (1996).

[6] M.K. Loultcheva, M. Proietto, N. Jilov and F.P. La Mantia, Polym. Degrad. Stab., (1997).

[7] A. Bernasconi, P. Davoli, D. Rossin, C. Armanni, Effect of Reprocessing on the Fatigue Strength of a Fibreglass Reinforced Polyamide, Composites Part A 38/3 (2007) 710-718.


[8] J.C. Arnold, Reprocessing, in: C. Ballie (Ed. ), Green composites, Polymer composites and the environment, Cambridge, CRC Press, Woodhead Publishing Ltd, (2004).

[9] V. Senkerik, M. Stanek, D. Manas, M. Manas, A. Skrobak, J. Navratil, Size effect of recycled material to tensile properties of PC, Advanced Materials Research 1025-1026 (2014) 278-282.


[10] V. Senkerik, M. Stanek, M. Manas, D. Manas, A. Skrobak, J. Navratil, Comparison of mechanical properties of different particle sizes of recycled polycarbonate at higher temperature, International Journal of Mechanics 8/1 (2014) 268-275.


[11] M. Stanek, M. Manas, D. Manas, V. Pata, S. Sanda, V. Senkerik, A. Skrobak, How the Filler Influence the Fluidity of Polymer, Chemicke listy 105 (2011) 303-305.

[12] M. Stanek, M. Manas, T. Drga, D. Manas, Testing Injection Molds for Polymer Fluidity Evaluation, in: Proc. of 17th DAAAM International Symposium: Intelligent Manufacturing Automation: Focus on Mechatronics and Robotics, Vienna, Austria, 2006, pp.397-398.

[13] D. Manas, M. Stanek, M. Manas, V. Pata, J. Javorik, Influence of mechanical properties on wear of heavily stressed rubber parts, KGK – Kautschuk Gummi Kunststoffe, 62 Jahrgang, 2009, pp.240-245.