研究剪切下交联情况 ,将交联过程描述为 4个连续阶段 ,最后一阶段得到均匀分散的微凝胶颗粒。低毒交联体系(聚丙烯酰胺共聚物 /Al3 + )的实验结果证明 ,交联剂浓度、pH值、流变仪狭缝大小和剪切速率等因素对交联时间和凝胶的最终剪切黏度等理化性能都有影响 ,通过控制合适的剪切条件 ,可以制备新型分散凝胶体系。图 4参 2 (胡菁华摘 ) The cross-linking under shear was studied, the cross-linking process was described as four successive stages, and the last stage gave uniformly dispersed microgel particles. The experimental results of the low toxicity cross-linking system (polyacrylamide copolymer / Al3 +) prove that the cross-linking time and the ultimate shear of the gel are influenced by factors such as the concentration of the cross-linking agent, the pH value, the size of the slit of the rheometer and the shear rate Shear viscosity and other physical and chemical properties have an impact, by controlling the appropriate shear conditions, you can prepare a new type of dispersed gel system. Figure 4 Senate 2 (Hu Jinghua pick)