The rheological behavior of hydroxyethyl acrylate sodium / acryloyldimethyl taurate copolymer aqueous dispersions with multiple interactions (hydrogen-bonding, van der Waals and electrostatic interactions) is investigated. An abnormal large-amplitude oscillation shear performance is observed, i.e., the linear viscoelastic region shortens with an increase in concentration, whereas the weak-strain overshoot moves to a high strain region. The synergistic effect of the three interactions facilitates the hydrophobic interaction and the formation of strong and enough clusters. Both the entire transient network structure relaxation and cluster relaxation (deformation, rupture, recovery, and friction) play vital roles in this unique response. Significant cluster relaxation is believed to have led to the abnormal weak-strain overshoot. The experimental results are similar to those derived from an anticipation based on friction dissipation of blobs inside clusters, which implies that the weak-strain overshoot exactly stems from the clusters relaxing and the associated energy dissipation. The mechanism proposed here offers an innovative analytical technique for complex biological fluids.

研究了具有多种相互作用（氢键，范德华和静电相互作用）的丙烯酸羟乙酯钠/丙烯酰基二甲基牛磺酸盐共聚物水分散液的流变行为。观察到异常大振幅振荡剪切性能，即，线性粘弹性区域随着浓度的增加而缩短，而弱应变超调移至高应变区域。三种相互作用的协同作用促进了疏水相互作用以及形成强而足够的簇。整个瞬态网络结构的松弛和簇的松弛（变形，破裂，恢复和摩擦）在这种独特的响应中都起着至关重要的作用。据认为，明显的团簇松弛已导致异常的弱应变超调。实验结果与基于簇内部团块的摩擦耗散的预期得出的结果相似，这表明弱应变超调正好来自簇的松弛和相关的能量耗散。这里提出的机制为复杂的生物流体提供了一种创新的分析技术。