Research Progress of Anti-clay Polycarboxylate Superplasticizer
From the structure and performance of polycarboxylate superplasticizers,as well as their interaction mechanism with clay,recent progress on anti-clay polycarboxylate superplasticizers was reviewed.Research has been conducted by introducing side chains with rigid groups,introducing special functional groups such as carboxyl,sulfonic acid,quaternary ammonium cations,phosphate groups,etc.,or using polyether macromonomer without polyoxyethylene structure.These methods can to some extent weaken the adsorption of clay on polycarboxylate superplasticizers,thereby demonstrating resistance to clay.Finally,prospects for future research on the resistance of polycarboxylate superplastuicizer to clay are presented.
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