Morphology diversity and mechanical response of injection moulded polymer nano-composites and polymer-polymer composites

• Autorzy: Bilewicz M. , Viana J. C. , Cunha A. M. , Dobrzański L. A.
• Języki publikacji: EN

Abstrakty

EN

Purpose: This work was performed in the aim of exploring non-conventional injection moulding technique and to study the effect of processing thermomechanical treatment on the morphology and properties of polymer-polymer composites. Design/methodology/approach: Multilayered highly oriented skin regions induced by high shearing of the melt were obtained during non-conventional injection moulding process. Structure development has been observed in the polarized light microscope and by scanning electron microscopy. The fracture energy has been calculated from notched bar specimens. Findings: The processing variables (melt temperature, stroke time and number) are determinant of the fracture energy of the neat PP. Higher setting of these processing variables gives enhanced fracture energy (25% higher). Immiscible polymer blend of PP/PC processed by melt manipulation techniques show improved fracture toughness compared to neat PP. Addition of MAP to PP/PC did not affect the fracture energy for low setting of the processing variables, but significantly decreased it for high adjustments. The fracture energy of nanoclay reinforced PP is the double of the neat PP, for both melt temperature settings. Lower values of fracture energy have been obtained for polymer-polymer composite of PP/PC reinforced with nanoparticles (3-fold lower). Research limitations/implications: Further work contains research of different materials’ ratio, as well different polymer-polymer compositions (e.g., PP/PS and PP/LCP). Other mechanical properties will be assessed. Practical implications: The improvement of mechanical response is sharply apparent by use of SCORIM technique and by the use of nanoparticles reinforcement. Originality/value: This polymer processing technology is promising route for morphology manipulation and improvement on the mechanical properties of polymer systems. Research studies on processing-structure-properties relationships of polymer-polymer composites and nanocomposites moulded by melt manipulation techniques are scarce.

Słowa kluczowe

EN

heat treatment; polymer-polymer composites; nanocomposites; non-conventional injection molding; structure properties relationships

PL

obróbka cieplna; kompozyty polimerowe; nanokompozyty; niekonwencjonalne formowanie wtryskowe; zależność struktura-właściwości

• Wydawca: International OCSCO World Press
• Czasopismo: Journal of Achievements in Materials and Manufacturing Engineering
• Rocznik: 2006
• Tom: Vol. 15, nr 1-2
• Strony: 159--165
• Opis fizyczny: Bibliogr. 16 poz., rys., tab., wykr.

Twórcy

autor

Bilewicz M.

• IPC - Institute for Polymers and Composites, Department of Polymer Engineering, University of Minho, 4800-058 Guimaraes, Portugal
• Division of Materials Processing Technology and Computer Techniques in Materials Science, Institute of Engineering Materials and Biomaterials, Silesian University of Technology, ul. Konarskiego 18a, 44-100 Gliwice, Poland

autor

Viana J. C.

• IPC - Institute for Polymers and Composites, Department of Polymer Engineering, University of Minho, 4800-058 Guimaraes, Portugal

autor

Cunha A. M.

• IPC - Institute for Polymers and Composites, Department of Polymer Engineering, University of Minho, 4800-058 Guimaraes, Portugal

autor

Dobrzański L. A.

• Division of Materials Processing Technology and Computer Techniques in Materials Science, Institute of Engineering Materials and Biomaterials, Silesian University of Technology, ul. Konarskiego 18a, 44-100 Gliwice, Poland

Bibliografia

• [1] M. Evistatiev, S. Fakirov, J. Shultz, K. Friedrich, Polymer Engineering Science 41 192 (2001).
• [2] A.M. Cunha, J.S. Godinho, and J.C. Viana, in Structure Development During Polymer Processing, NATO-ASI series, vol. 370, 255-277, A.M. Cunha and S. Fakirov eds., Kluwer Academic Pub., Dordrecht, The Netherlands (2000).
• [3] L.A. Dobrzański, Fundamentals of Materials Science and Metallurgy. Engineering Materials with fundamentals of Materials Design, WNT, Warszawa (2002) (in Polish).
• [4] G. Kalay, M.J. Bevis, J. Appl. Polym. Sci., Part B: Polym. Phys. 35 265-291 (1997).
• [5] G. Kalay, M.J. Bevis, J. Appl. Polym. Sci.: Part B: Polym. Phys. 35 241-263 (1997).
• [6] M.J. Bevis, Structure development and associated physical property enhancement by design in moulded and extruded plastics, Proceed, PPS-16, Xangai, (1999).
• [7] A. Kech, H.C. Ludwig, P. Eyerer, Improvement of material properties of unreinforced isotatic polypropylene using push-pull processing, Proceed. 3rd ESAFORM Conf. Mat. Froming, Stutgard, Germany, v. 35-38 (2000).
• [8] H. Becker, G. Fischer, U. Mliller, Push-pull injection moul-ding of industrial products. Kunststoffe German Plastics, 83(3) (1993) 3-4.
• [9] Li Youbing, Gao Xuequin, Yuan Shaoyan, Yuan Yi, Zhang Jie, Ke Wenti, Shen Kaizhi, Polymer International, Volume 54, Number 1 240-245 (2005).
• [10] J.F. Mano, R.A. Sousa, R.L. Reis, A.M. Cunha, M.J. Bevis, Polymer 42 6187-6198 (2001).
• [11] R.A. Sousa, R.L. Reis, A.M. Cunha, M.J. Bevis, Comp. Sci. Tech. 63 389-402 (2003).
• [12] L.A. Utracki Polymer Blends Handbook, Kluwer Academic Publishers (2002), (two volumes).
• [13] H.J. O’Donnell, D.G. Baird, Polymer Vol. 36, 3113-3126 (1995).
• [14] Y. Koijima, A. Usuki, M. Kawasumi, A. Okada, Y. Fukushima, T. Karauchi, O. Kamigaito, Mat. Res. 6 1185-1189 (1993).
• [15] S. S. Ray, M. Okamoto, Prog. Polym. Sci. 28, 1539-1641 (2003).
• [16] B. Fisa, B.D. Favis, S. Bourgeois, Polymer Eng. Sci. Vol 30. Issue 17 1051-1055 (2004).