Process characteristics of PCE Powder

First of all, the raw material for the preparation of PCE Powder is the mother liquor of polycarboxylic acid water-reducing agent, and the mother liquor prepared by each manufacturer is different. To study its principle, in addition to external factors such as environmental temperature and manual operation, the process of polymerization monomer is also different. Therefore, if a manufacturer cannot control the production of polycarboxylic acid mother liquor, he can only purchase the mother liquor with different performance from other manufacturers and the quality of each batch can not be guaranteed to spray powder, resulting in the quality of PCE Powde produced.

Secondly, centrifugal spray drying process will be used to prepare powder of polycarboxylic acid water reducer mother liquor during production, which can be understood as pumping the water in the liquid water reducer to obtain PCE Powder. The solid content of the water reducer powder obtained by this method can be as high as 99%.

However, there are many details to be controlled in the production process. For example, the suitable parameters for the spray drying process are the inlet air temperature of the drying chamber of 180~220 ℃, the feed liquid temperature of 20~40 ℃, and the solid content of the feed liquid of 20%~60%. The feeding time should not be too long, or it may react in advance, leading to a decline in product performance.

Even if each link is strictly controlled, the carbonyl group in the molecular structure of polycarboxylic acid water-reducing agent will still be partially decomposed during the drying process, and the macro-performance of the water-reducing agent will also be limited, but in a comprehensive view, under the strict control of the production process, it will not affect the performance of the final product.