Polyelectrolytes inhibition effect on crystallization of gypsum

Dogan O., Akyol E., Oner M.

CRYSTAL RESEARCH AND TECHNOLOGY, cilt.39, sa.12, ss.1108-1114, 2004 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 39 Sayı: 12
  • Basım Tarihi: 2004
  • Doi Numarası: 10.1002/crat.200410297
  • Dergi Adı: CRYSTAL RESEARCH AND TECHNOLOGY
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.1108-1114
  • Yıldız Teknik Üniversitesi Adresli: Evet

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.