Glycerol is known as a plasticizer. I want to know the effect of glycerol on rheological behavior when added as a binder in metal injection molding.
When binders are added for metal/ceramic injection molding, their purpose is to only act as carriers/vehicles and to ease the flowability of the mix for injection molding. Such systems come under the category of high loaded or highly filled systems, and their rheological handling is considerably different from normal filled systems with low levels of loading. You could get some idea of how these systems behave through the following papers:
1. D. R. Saini, A. V. Shenoy and V. M. Nadkarni, Dynamic mechanical properties of highly loaded ferrite-filled thermoplastic elastomers, J. Appl. Polym. Sci., Vol. 29, p. 4123 (1984).
2. D. R. Saini, A. V. Shenoy and V. M. Nadkarni, Effect of surface treatment on rheological and mechanical properties of ferrite-filled polymeric systems,Polym. Eng. Sci., Vol. 25, p. 807 (1985).
3. D. R. Saini and A. V. Shenoy, Viscoelastic properties of highly loaded ferrite-filled polymeric systems, Polym. Eng. Sci., Vol. 26, p. 441 (1986).
4. A. V. Shenoy and D. R. Saini, Quantitative estimation of matrix-filler interaction in ferrite-filled styrene-isoprene-styrene block copolymer systems, Polym. Composites, Vol. 7, p. 96 (1986).
5. D. R. Saini, A. V. Shenoy and V. M. Nadkarni, Melt rheology of highly loaded polymer composites, Polym. Composites, Vol. 7, 193 (1986).
6. M. D. Sacks, C. S. Khadilkar, G. W. Scheiffele, A. V. Shenoy, J. H. Dow and R. S. Sheu, Dispersion and rheology in ceramic processing, Advances in Ceramics, Vol. 21, p. 495 (1987).
7. J. H. Dow, M. D. Sacks and A. V. Shenoy, Dispersion of ceramic particles in polymer melts, Cer. Trans. (Cer. Powd. Sci. IIA), Vol.1, p. 380 (1988).
8. J. H. Dow, M. D. Sacks and A. V. Shenoy, Dispersion of alumina particles in polyethylene melts, Cer.Trans. (Cer.Powd.SciIII.), Vol. 12, p. 431 (1990).
A detailed discussion of the rheology of filled systems, including highly loaded ones, is available in
1. Aroon V. Shenoy, Rheology of Filled Polymer Systems, Kluwer Academic Publishers, Netherlands (1999).
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