| 摘要 |
[Problem] To manufacture a high-performance, multifunctional water-absorbing resin with high productivity while minimizing problems that could occur when scaling up manufacturing (in particular, to a production volume of 100 kg/hr or more), namely performance decreases, performance variability, and products that do not meet specifications, using a manufacturing method that includes a large number of linked manufacturing steps. Also, to manage the manufacturing process. [Solution] A method for manufacturing a water-absorbing polyacrylate resin, said method including the following steps: a polymerization step in which an aqueous solution of an acrylate monomer is polymerized; a drying step in which a cross-linked polymer in a water-containing gel state is dried; a surface-treatment step in which water-absorbing resin particles are surface-treated; and a water-absorbing-resin filling step after the surface-treatment step. Said steps are connected by piping. This method for manufacturing a water-absorbing polyacrylate resin also includes a sampling step in which a sample is taken from the water-absorbing resin, which from the end of the surface-treatment step to the end of the filling step is falling downwards. |
