Preparation of solid polycarboxylate superlasticizer

A solid polycarboxylate superlasticizer was synthesized with methacrylic acid,polyoxyethylene(TPEG),and microcrosslinking monomer(P) synthesized by using polyetheramine and croton acid. Studied acid/ether mole ratio, P dosage, rotating speed and reaction temperature on the solid polycarboxylate superlasticizer performance. The results showed that when acid/ether mole ratio was 4.0/1, P dosage was 8% of TPEG, rotating speed was 800rpm and reaction temperature was 60°C, synthetic polycarboxylate superplasticizer had the best comprehensive performance. (paper)