高吸水树脂的溶胀动力学

Swelling Kinetics of Super-Absorbent Polymer

基于扩散-松弛模型,分别研究了树脂粒度和溶液浓度对高吸水树脂溶胀行为的影响。实验结果表明:水分子的扩散和树脂大分子链段的松弛对树脂的溶胀均有贡献,但两者贡献大小与树脂粒度和溶液浓度有关。

Based on a diffusion-relaxation model, the influence of particle size and solution concentration on super-absorbent polymer（SAP） swelling kinetics is studied in this paper. The diffusion of water molecule and the relaxation of the chains of the polymer both contribute to the SAP swelling, but the SAP size and the solution concentration play more important roles.