Comparative evaluation of biopolymers and synthetic polymers as hydroxyapatite dispersants for industrial water systems

• Z. Amjad, A. Kweik and K. Bickett

School of Arts and Sciences, Walsh University, 2020 E. Maple Street, N. Canton, OH 44720, USA

Abstract: The dispersion of hydroxyapatite, Ca5(PO4)3OH, HAP, by a variety of biopolymers and synthetic polymers of different composition and ionic charge has been investigated. The dispersion data show that polymer effectiveness as HAP dispersant strongly depends upon polymer architecture. Results also reveal that synthetic polymers perform better than bio-polymers. It has been found that anionic, non-ionic, amphoteric, and cationic surfactants are ineffective as HAP dispersants. Additionally, it has also been observed that cationic surfactant and cationic polymer exhibit antagonistic effect on the performance of anionic polymeric dispersants.

Keywords: hydroxyapatite, dispersion, biopolymers, synthetic polymer surfactants

Int. J. Corros. Scale Inhib., 2015, 4, no. 3, 269-283 PDF (736 K)
doi: 10.17675/2305-6894-2015-4-3-269-283

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