The Influence of NBR on the Complex of Technological Properties of Binary Mixtures Based on EPDN

IF 0.7 Q3 Engineering

Surface Engineering and Applied Electrochemistry Pub Date : 2025-12-10 DOI:10.3103/S1068375525701054

E. N. Ahmedov, S. V. Rzayeva

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Abstract

The paper studies the structural and physicochemical properties of binary polymer mixtures based on ethylene-propylene copolymer (EPDN) and nitrile-butadiene rubber (NBR) in order to improve their technological and thermal stability. A comprehensive analysis of the influence of composition and plasticization conditions on the processes of crosslinking, structure formation, and thermal-oxidative destruction was carried out. It was experimentally established that an increase in the proportion of NBR promotes the development of a spatial network due to radical reactions activated by double bonds and polar groups. Optimal viscosity, elasticity, and gel content are achieved with an EPDN to NBR ratio of 60 : 40. The results are confirmed by both spectral and rheological analyses as well as by calculating the degree of crosslinking using the Flory–Rehner equation. The work demonstrates the potential of targeted modification of EPDSN-containing compositions using reactive elastomers to create heat-resistant and durable polymeric materials.

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丁腈橡胶对EPDN二元混合物复合工艺性能的影响

本文研究了以乙丙共聚物（EPDN）和丁腈橡胶（NBR）为基础的二元聚合物混合物的结构和理化性质，以提高其工艺稳定性和热稳定性。综合分析了组分和塑化条件对交联、结构形成和热氧化破坏过程的影响。实验证实，NBR比例的增加促进了由双键和极性基团激活的自由基反应的空间网络的发展。当EPDN与丁腈橡胶的比例为60:40时，可获得最佳的粘度、弹性和凝胶含量。光谱和流变分析以及用Flory-Rehner方程计算交联度的结果都证实了这一结果。这项工作证明了使用反应性弹体对含有epdsn的组合物进行靶向改性的潜力，以创造耐热和耐用的聚合物材料。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Surface Engineering and Applied Electrochemistry Engineering-Industrial and Manufacturing Engineering

CiteScore

1.60

自引率

22.20%

发文量

期刊介绍： Surface Engineering and Applied Electrochemistry is a journal that publishes original and review articles on theory and applications of electroerosion and electrochemical methods for the treatment of materials; physical and chemical methods for the preparation of macro-, micro-, and nanomaterials and their properties; electrical processes in engineering, chemistry, and methods for the processing of biological products and food; and application electromagnetic fields in biological systems.