Study on the Adsorption Behavior of Ca²⁺ Ions on Comb-Like Polycarboxylate Polymers in the CaCl₂ Solution

Abstract:

Using esterification-polymerization two-steps synthesis method, two kinds of comb-like polycarboxylate agents of BT and JS were synthesized by controlling acid-ester ratio. The adsorption characteristics of Ca²⁺ ions on comb-like polycarboxylate polymers in the CaCl₂ solution were studied. The results indicated that the adsorption behavior was closely related to the structure of polymers, the adsorption power of JS with water-reducing structure was strong, while weak with slump loss resisting polymers BT. The adsorption behavior was also in connection with the acid-ester ratio of polymer structure, the higher the acid-ester ratio is, the greater the absorption power; On the contrary, it will be smaller.

• Periodical: Advanced Materials Research (Volumes 233-235)
• Pages: 2176-2180
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.233-235.2176
• Online since: May 2011
• Authors: Guo Rong Duan, Xin Wang, Guo Hong Huang, Ying Gong
• Keywords: Acid-Ester Ratio, Adsorption Behaviour, Comb-Like, Polycarboxylate Admixture

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