Abstract

The effect of vulcanization system on the properties of polymer-elastomer composite materials based on nitrile-butadiene rubber and ultrahigh molecular weight polyethylene is studied. An analysis of the rheometric and vulcanization characteristics of rubber compounds shows that, in the case of combined sulfur-peroxide vulcanization system, the crosslinking density of vulcanizates increases considerably. The study of the elastic and strength behavior and dynamic mechanical properties of the vulcanizates demonstrates that the sulfur-peroxide vulcanization system provides the best parameters, in particular at low temperatures. An examination of elastic and hysteresis properties of the samples before and after vulcanization, which are measured under dynamic loading in a wide frequency and strain range, allows one to describe the features of physicochemical interactions in polymer-elastomer materials depending on the used vulcanization system. The supramolecular structure of the vulcanizates is visualized by scanning electron microscopy, and chemical interaction between macromolecules of nitrile-butadiene rubber and ultrahigh molecular weight polyethylene occurring during peroxide vulcanization is proved by IR spectroscopy.

中文翻译：

---

硫化体系对聚合物弹性体复合材料结构与性能的影响

摘要

研究了硫化体系对丁腈橡胶和超高分子量聚乙烯聚合物弹性体复合材料性能的影响。对混炼胶流变和硫化特性的分析表明，在过氧化硫联合硫化体系中，硫化胶的交联密度显着提高。对硫化橡胶的弹性和强度行为以及动态机械性能的研究表明，过氧化硫硫化体系提供了最佳参数，特别是在低温下。对硫化前后样品的弹性和滞后性能进行检查，这些性能是在宽频率和应变范围内的动态载荷下测量的，可以根据所使用的硫化系统描述聚合物弹性体材料中物理化学相互作用的特征。通过扫描电子显微镜观察硫化橡胶的超分子结构，并通过红外光谱证明丁腈橡胶大分子与超高分子量聚乙烯在过氧化物硫化过程中发生的化学相互作用。