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- Preparation of zinc sodium polyphosphates glasses from coacervates precursors. Characterisation of the obtained glasses, and their applications
- Univ Lille 1
- Univ Technol Compiegne
- Universidade Estadual Paulista (UNESP)
- Univ Rennes 1
- A soft chemistry route is described to obtain glasses in the P2O5-Na2O-ZnO-H2O. It is based on the addition of zinc salts to coacervates prepared from sodium polyphosphate. The processing of these coacervates leads to polyphosphate glasses with the same properties as those of glasses prepared in the classical way. So far, little work has been implemented in this system using 'coacervate route'. However, it makes an attractive method for coating and joining processes on the industrial scale. As the anion associated to zinc may take part in the adhesion mechanism, coacervate formation has been studied using zinc chloride, nitrate and sulphate as starting materials. The physical properties of the glasses obtained by this method are reported and potential applications of zinc and silver coacervate are described. (C) 2002 Academie des sciences / Editions scientifiques et medicales Elsevier SAS.
- Comptes Rendus Chimie. Paris Cedex 15: Editions Scientifiques Medicales Elsevier, v. 5, n. 12, p. 899-906, 2002.
- Elsevier B.V.
- Acesso restrito
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