Polyelectrolytes inhibition effect on crystallization of gypsum


Dogan O. , AKYOL E. , ONER M.

CRYSTAL RESEARCH AND TECHNOLOGY, cilt.39, ss.1108-1114, 2004 (SCI İndekslerine Giren Dergi)

  • Cilt numarası: 39 Konu: 12
  • Basım Tarihi: 2004
  • Doi Numarası: 10.1002/crat.200410297
  • Dergi Adı: CRYSTAL RESEARCH AND TECHNOLOGY
  • Sayfa Sayısı: ss.1108-1114

Özet

The spontaneous precipitation of calcium sulfate dihydrate (gypsum) at 30 degreesC was investigated in the presence of polyelectrolytes. The degree of inhibition is measured as the reduction in initial crystallization rate, determined by conductivity of the crystallizing solution. The inhibition increases with acid content of the copolymer. Changing the butyl ester to a hydrophilic ethylene oxide resulted in higher inhibition efficiency. The inhibition efficiency is believed to arise from the closer chain packing on the crystal surface.