过滤法测定淀粉接枝聚合物树脂吸液率的研究

Study on absorbency of starch graft polymer resin by filtration

通过改变吸水树脂质量、吸液时间、外部溶液离子强度等条件,用过滤法测定淀粉接枝聚合物的吸水率和吸水速率。经分析,测定淀粉系高吸水性树脂吸水率的合理条件为：干树脂粒径在60-80目之间,质量1.500g,吸水时间为30min;外部离子浓度越高,吸液率越低。

Utilization of the filtration method to determine absorbency and water absorption rate of the starch graft polymers, through alternating the mass of water-absorbing resin, time of absorption, and the external conditions such as solution ionic strength. After analyzing the curves of absorbency, it was discovered that the proper conditions for the measurement of absorption of the absorbent type of starch graft Polymers were., diameter of the dry resin particle should be in the range of 60-80 mesh, mass of the resin was 1. 500g, and absorption time was 30 minutes. Generally, the higher the concentration of the external ions, the lower the absorbency rate.