While many works focus on aging mechanisms and mechanical performances of aged vulcanizates, rare is performed to investigate the influences of aging induced network variation on the Payne effect and energy dissipation. Herein the influence of thermo-oxidative aging on Payne effect of isoprene rubber (IR) gum vulcanized with conventional vulcanization (CV) and efficient vulcanization (EV) systems at similar crosslinking densities was investigated, in order to disclose the roles of the crosslink types and therefore the thermo-oxidative degradation on the Payne effect. The results indicate that the crosslink structure and thus the Payne effect are highly susceptible to the thermo-oxidative aging. The aging induced degradation is more severe in CV than that in EV systems, which greatly improves the dissipation of accompanying the Payne effect. This work is helpful for understanding the contribution of network structure to the Payne effect for design rubber materials with optimized aging and dynamic properties.

尽管许多工作集中于老化硫化橡胶的老化机理和机械性能，但很少进行研究来研究老化引起的网络变化对Payne效应和能量耗散的影响。本文研究了热氧化老化对以常规交联密度（CV）和有效硫化（EV）体系硫化的异戊二烯橡胶（IR）胶在相似的交联密度下的Payne效应的影响，以揭示交联类型和作用因此，热氧化降解对佩恩效应。结果表明，交联结构以及因此的Payne效应对热氧化老化高度敏感。与电动汽车相比，CV中老化引起的退化更为严重，这大大改善了伴随Payne效应的耗散。