Rheometric properties of non-Newtonian systems

• Autorzy: Górecki M. , Zalewska A.
• Konferencja: Second International Conference on Engineering Rheology ICER 2003
• Języki publikacji: EN

Abstrakty

EN

Assessment of physical properties of the pharmaceutical high-molecular substances and emulsions performed according the recommendation of currently valid Polish Pharmacopoeia has been found not fully satisfactory from the point of view of pharmaceutical technology and analysis. The study whose results are reported presents an attempt at description and analysis of their physical properties using the rheological methodology. Physical properties of the macromolecules CMC-Na, HPMC, ALG-Na, MC used in the technology of drug forms, are analysed. The compounds studied are characterised by the rheological methods using the mathematical models.

Słowa kluczowe

EN

flow curve; non-Newtonian fluid; rheological model

PL

ciecz nienewtonowska; model reologiczny; krzywa przepływu

• Wydawca: Oficyna Wydawnicza Uniwersytetu Zielonogórskiego
• Czasopismo: International Journal of Applied Mechanics and Engineering
• Rocznik: 2003
• Tom: Vol. 8, no spec.
• Strony: 239--243
• Opis fizyczny: Bibliogr. 9 poz., tab., wykr.

Twórcy

autor

Górecki M.

• Department of Inorganic and Analitical Chemistry K. Marcinkowski University of Medical Sciences Grunwaldzka 6, 60-780 Poznań, POLAND

autor

Zalewska A.

• Department of Inorganic and Analitical Chemistry K. Marcinkowski University of Medical Sciences Grunwaldzka 6, 60-780 Poznań, POLAND

Bibliografia

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• [4] Kulicke W.M. (1999): Characterization of the flow properties of sodium carboxymethyl - cellulose via maechanical and optical techniques. - Rheol. Acta, vol.38, pp.26-33.
• [5] Lapcik L., Lapcikowa B. and Filgasova G. (2000): Study of rheological properties of dispersed lignite suspension. - Colloid Polym. Sci., vol.278, pp.65-68.
• [6] Mason T.G. (1999): New fundamental concepts in emulsion rheology. - Current Opinion in Colloid and Interface Sciente, vol.4, pp.231-238.
• [7] Rajinder P. (1999): Yield stress and viscoelastic properties of hight internal phase rado emulsion. - Colloid Polym. Sci., vol.277, pp.583-588.
• [8] Schramm G.H. (1998): A Pracdcal Approach to Rheology and Rheometry. - Center of Scientific Press, Poznań.
• [9] Quemada (1999): Rheological modelling of complex fluids: IV: Thixotropic and “thixoelastic” behaviour. Start up and stress relaxadon, creep tests and histeresis cycles. - Eur. Phys. J. AP, vol.5, pp. 191-207.