Abstract

The reasons for the expansion of the temperature range of inelasticity of a polymer material at temperatures above the glass transition temperature when it is filled with zinc powder, studied using the method of dynamic mechanical relaxation spectroscopy, are analyzed. In the internal friction spectra of the filled polymer, a decrease in the intensity of α-relaxation processes in the region of the glass transition temperature, which correlates with the nature of the temperature dependence of the frequency of the oscillatory process, as well as a change in the activity of the local µ-relaxation process at negative temperatures, was found. The expansion of the temperature range of inelasticity (elasticity) is associated with the disruption of intermolecular bonds in the polymer and the formation of new relaxation structures as a result of the interaction of its carboxyl groups and oxide groups on the metal surface. The manifestation of µ-relaxation processes is associated with the formation of various forms of ice during freezing of a latex polymer at negative temperatures.

中文翻译：

---

锌粉对胶乳聚合物耗散过程的影响

摘要

分析了使用动态机械弛豫光谱法研究的，在填充锌粉时高于玻璃化转变温度的聚合物材料的非弹性温度范围扩大的原因。在填充聚合物的内部摩擦谱中，在玻璃化转变温度范围内，α松弛过程的强度降低，这与振荡过程频率的温度依赖性有关，并且与发现在负温度下局部μ-松弛过程的活性发生了变化。非弹性（弹性）温度范围的扩大与聚合物中分子间键的破坏以及由于其羧基和金属表面上的氧化基团相互作用而形成新的弛豫结构有关。μ-松弛过程的表现与在胶乳聚合物在负温度下冻结期间形成各种形式的冰有关。