The Theological property evolution of polyamide 1012 (PA1012) in the isothermal process in molten state has been investigated. The results show that the viscosity increases and crosslinking reaction occurs simultaneously together with the increase of temperature, thus causing the variation of storage modulus (G′) and loss modulus (G″) in the repeated frequency sweeps with residual time. This research has pointed out that the superposition is valid for monitoring the complex behavior composed of the viscosity increasing and crosslink occurring process by tracing the variation behavior of the crossover points of G’ and G” with time, revealing the same time-temperature dependence of the two reactions in the isothermal process. A normalized master curve has been proposed to describe the melt behavior at a given temperature.

研究了熔融状态下等温过程中聚酰胺1012（PA1012）的流变性能。结果表明，粘度增加和交联反应的同时一起随着温度的增加发生，从而引起储能模量（的变化ģ '）和损耗模量（G ^与剩余时间的重复频率扫描“）。该研究指出，通过跟踪G '和G的交叉点的变化行为，该叠加对于监测由粘度增加和交联发生过程组成的复杂行为是有效的。随时间变化，揭示了等温过程中两个反应的时间-温度依赖性相同。已提出归一化的主曲线来描述给定温度下的熔体行为。