Bhattacharjee, S and PARIA, M K and Maiti, Himadri Sekhar (1993) Polyvinyl butyral as a dispersant for barium-titanate in a non-aqueous suspension. Journal of Materials Science, 28 (23). pp. 6490-6495. ISSN 0022-2461

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Polyvinyl butyral (PVB) was used as a dispersant for BaTiO3 in a toluene-methanol system and its efficiency was evaluated by measuring the zeta potential and by a rheological study of the suspension. Addition of only 1.6 vol % low-molecular-weight (50000) PVB is effective in making a well-dispersed suspension. But a lower concentration (0.6 vol %) of high-molecular-weight (200 000) PVB is necessary to stabilize the suspension due to the longer chain length of the polymer, which enhances steric stabilization. Dispersion of BaTiO3 by PVB is better in a reverse azeotropic composition of toluene-methanol (72.4:27.6) than in an azeotropic composition.

Item Type: Article
Subjects: Engineering Materials
Depositing User: Bidhan Chaudhuri
Date Deposited: 20 Aug 2013 08:21
Last Modified: 06 Feb 2015 10:07

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