The Preparation Research of Powder Polycarboxylate Superplasticizer
This paper uses centrifugal spray drying process to prepare powder polycarboxylate superplasticizer. The best spray drying process: speed of centrifugal atomizer is 16000r/min, feed liquid temperature is 30°C, import / export air temperature of drying chamber is 200°C/80°C. It achieves a high concentration of polycarboxylate superplasticizer to prepare powder product. It solves the problem of sticky and low-performance of powder polycarboxylate superplasticizer during traditional preparation. Analyzing the structure of polycarboxylate superplasticizer before and after spray-drying by infrared spectroscopy, and verifying the conclusion through macroeconomic performance experiments.
Dongye Sun, Wen-Pei Sung and Ran Chen
M. M. Gui et al., "The Preparation Research of Powder Polycarboxylate Superplasticizer", Applied Mechanics and Materials, Vols. 71-78, pp. 677-683, 2011