The hydration of a glass-ionomer (ASPA) cement

✍ Scribed by Wilson, Alan D. ;Crisp, Stephen ;Paddon, John M.

• Book ID: 104527125
• Publisher: Wiley (John Wiley & Sons)
• Year: 1981
• Tongue: English
• Weight: 415 KB
• Volume: 13
• Category: Article
• ISSN: 0007-1641
• DOI: 10.1002/pi.4980130206

✦ Synopsis

Abstract

The hydration of chemical species formed in the cement‐forming reaction has been studied by measuring the evaporable, and non‐evaporable water contents of a glassionomer cement at various stages in its history. Hydration is accompanied by increase in strength and, as loose water is removed from the matrix, a decrease in plasticity. Hydration is attributed to ionisation of the polymeric carboxylic acid and transfer of metal ions from the glass to the polyelectrolyte.