Rheometric research of polypropylene Licocene PP2602 melts

• Autorzy: Mandzyuk I. , Romanuke V.
• Języki publikacji: EN

Abstrakty

EN

Purpose: To comprehend and ascertain reasons of the transition into the non-Newtonian viscosity zone for the melted polypropylene material, depending upon the number of recycling series. Design/methodology/approach: There were carried researches on rheological features of the primary material of the melted polypropylene Licocene PP2602, subjected to be processed repeatedly in as many series as needed, using the Brookfield viscometer CAP2000+ within the temperature range 130-200şC and the shear rate range 166-3000 s–1. Findings: There were obtained dependence of polypropylene melt viscosity against the shear rate at fixed temperatures, and dependence of polypropylene melt shear stress against the shear rate at fixed temperatures with the non-Newtonian viscosity transient zone shifting into the zone of greater shear rate values as the temperature increases. Also there was obtained dependence of the shear stress critical value on the number of recycling series, where the corresponding critical shear rate value grows as this number increases. This may be applied for predetermining the state of the repeatedly processed polymer material. Research limitations/implications: The found rheometric regularities reflect behaviour for a homologous series of the polymer, but most probably they are generic for all polyolefines, what should be investigated and ascertained subsequently. Practical implications: On the ground of the ascertained temperature-rate dependences of the polypropylene melt flow, there has appeared a possibility to gain a quantitative response about the secondary low-density-polyethylene material state, what allows selecting strategically the way of controlling this material properties, and that let develop new composites of those recycled materials for manufacturing footwear at enterprise “Vzuteks” (Khmelnytskyy). Originality/value: The present paper states that processing the polymer materials repeatedly influences directly on their rheological parameters, increasing, particularly, the melt shear rate critical value.

Słowa kluczowe

EN

polymer materials; engineering polymers; recycling polymer; polymer rheological parameters; non-newtonian viscosity transition zone

PL

materiał polimerowy; polimery konstrukcyjne; parametry reologiczne polimerów

• Wydawca: International OCSCO World Press
• Czasopismo: Archives of Materials Science and Engineering
• Rocznik: 2011
• Tom: Vol. 50, nr 1
• Strony: 31--35
• Opis fizyczny: Bibliogr. 27 poz.

Twórcy

autor

Mandzyuk I.

autor

Romanuke V.

• Khmelnytskyy National University, Instytutska str., 11, 29016, Khmelnytskyy, Ukraine,

Bibliografia

• [1] J. Stabik, A. Dybowska, Methods of preparing polymeric gradient composites, Journal of Achievements in Materials and Manufacturing Engineering 25/1 (2007) 67-70.
• [2] M. Bilewicz, J.C. Viana, L.A. Dobrzański, Development of microstructure affected by in-mould manipulation in polymer composites and nanocomposites, Journal of Achievements in Materials and Manufacturing Engineering 31/1 (2008) 71-76.
• [3] G. Kalay, C. Ogbonna, P.S. Allan, M. Bevis, Management, of microstructure in semi-crystalline polymers, Journal of Chemistry Engineering A 73 (1995) 798-809.
• [4] L.A. Dobrzański, M. Bilewicz, J.C. Viana, A.M. Cunha, Non-conventionally obtained polymer nanocomposites with different nano-clay ratios, Journal of Achievements in Materials and Manufacturing Engineering 31/2 (2008) 212-217.
• [5] M. Bilewicz, J.C. Viana, A.M. Cunha, L.A. Dobrzański, Morphology diversity and mechanical response of injection moulded polymer nanocomposites and polymer-polymer composites, Journal of Achievements in Materials and Manufacturing Engineering 15 (2006) 159-165.
• [6] S.-S. Lee, Y. Tae Ma, H.-W. Rhee, J. Kim, Exfoliation of layered silicate facilitated by ring-opening reaction of cyclic oligomers in PET-clay nanocomposites, Polymer 44 (2005) 2201-2210.
• [7] M. Bilewicz, J.C. Viana, L.A. Dobrzański, Self reinforced polymer-polymer composites, Journal of Achievements in Materials and Manufacturing Engineering 24/2 (2007) 43-46.
• [8] M. Fujiyama, Polypropylene structure, blends and composites: structure and morphology, Karger-Koscis Journal 1 (1995) 167-204.
• [9] M. Arroyo, R.V. Suárez, B. Herrero, Optimization of nanocomposites based on polypropylene/polyethylene blends and organo-bentonite, Journal of Materials Chemistry 13 (2003) 2915-2921.
• [10] C.A. Silva, J.C. Viana, G.R. Dias, A.M. Cunha, Mold for Manipulation Microstructure Development, International Polymer Processing 1 (2005) 27-34.
• [11] M. Alexandre, P. Dubois, T. Sun, J.M. Garces, R. Jérôme, Polyethylene-layered silicate nanocomposites prepared by the polymerization-filing technique: synthesis and mechanical properties, Polymer 43 (2002) 2123-2132.
• [12] J. Stabik, M. Szczepanik, A. Dybowska, Ł. Suchoń, Electrical properties of polymeric gradient materials based on epoxy resin filled with hard coal, Journal of Achievements in Materials and Manufacturing Engineering 38/1 (2010) 56-63.
• [13] J. Stabik, A. Dybowska, M. Chomiak, Polymer composites filled with powders as polymer graded materials, Journal of Achievements in Materials and Manufacturing Engineering 43/1 (2010) 153-161.
• [14] G.V. Vinogradov, A.Y. Malkin, Rheology of polymers, Chemistry, Moscow, 1977, 440 (in Russian).
• [15] G. Wróbel, J. Kaczmarczyk, Numerical simulation of fatigue degradation process of polymer materials using diagnostic acoustic characteristics, Journal of Achievements in Materials and Manufacturing Engineering 36/2 (2009) 168-175.
• [16] G. Wróbel, J. Kaczmarczyk, J. Stabik, M. Rojek, Numerical models of polymeric composite to simulate fatigue and ageing processes, Journal of Achievements in Materials and Manufacturing Engineering 34/1 (2009) 31-38.
• [17] G. Wróbel, A computer model of the process of polymer materials fatigue destruction, Journal of Achievements in Materials and Manufacturing Engineering 42 (2010) 127-133.
• [18] W. Okularczyk, D. Kwiatkowski, Prognosing the durability of polymer sealings, Journal of Achievements in Materials and Manufacturing Engineering 17 (2006) 125-128.
• [19] J. Myalski, Properties of laminates containing polymer glass fiber recyclates, Journal of Achievements in Materials and Manufacturing Engineering 14 (2006) 54-58.
• [20] J. Koszkul, J. Nabiałek, Selected methods of modelling of polymer during the injection moulding process, Journal of Achievements in Materials and Manufacturing Engineering 24/1 (2007) 253-259.
• [21] A. Katunin, W. Hufenbach, P. Kostka, K. Holeczek, Frequency dependence of the self-heating effect in polymer-based composites, Journal of Achievements in Materials and Manufacturing Engineering 41 (2010) 9-15.
• [22] J. Nabiałek, J. Koszkul, The polymer flow in a mold cavity during the injection molding process. Comparison of an experiment and computer simulations, Proceedings of the 12th International Scientific Conference “Achievements in Mechanical and Manufacturing Engineering” AMME’2003, Gliwice - Wisła, 2003, 641-644.
• [23] M. Żenkiewicz, J. Richert, Influence of polymer samples preparation procedure on their mechanical properties, Journal of Achievements in Materials and Manufacturing Engineering 26/2 (2008) 155-158.
• [24] F. La Mantia, Handbook of Plastics Recycling, 2002.
• [25] E. Bociaga, M. Pietrzak, P. Postawa, The propagation of variability of polymer processing parameters in production lines, Journal of Achievements in Materials and Manufacturing Engineering 26/1 (2008) 26-32.
• [26] J. Koszkul, M. Pietrzak, A. Gzielo, P. Postawa, Influence of variability of polymer processing on the manufacturing system, Journal of Achievements in Materials and Manufacturing Engineering 17 (2006) 253-256.
• [27] A. Gnatowski, J. Koszkul, Investigations of the influence of filler on the properties of chosen polymer blends with compatibilizer addition, Proceedings of the 13th International Scientific Conference “Achievements in Mechanical and Manufacturing Engineering” AMME’2005, Gliwice - Wisła, 2005, 247-250.