Morphology, mechanical and thermal properties of HNBR/AEM blends

IF 1.2 4区化学 Q4 POLYMER SCIENCE

Journal of Rubber Research Pub Date : 2023-01-30 DOI:10.1007/s42464-023-00190-x

Jian-Liang Jiang, Xiao Yang, Dongqi Zhao, Ya-kai Feng

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Abstract

Blending is an economical and feasible method to improve the properties of polymers. To improve the mechanical properties of ethylene acrylate rubber (AEM), a series of hydrogenated nitrile butadiene rubber (HNBR)/AEM blends were prepared. The mechanical, thermal properties and compatibility of HNBR/AEM blends were investigated in detail. Carbon black filled HNBR/AEM blends exhibited excellent mechanical properties as well as good resistance to high and low temperature. The reactivity of HNBR was higher than that of AEM at a high temperature (180 °C) in air. The crosslinking reaction was more likely to occur in HNBR rubber, while it is not easy to remove small molecules at high temperature. The degradation temperature (T_d5%) of AEM (350 °C) was lower than that of HNBR (390 °C), while the hot-air ageing tests indicate that the retention of tensile strength of AEM (95%) was much higher than that of HNBR (58%). HNBR/AEM blends were compatible within the full range of formulations, and have been mutually validated by SEM, dynamic mechanical analysis and mechanical property models of HNBR/AEM blends.

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HNBR/AEM共混物的形貌、力学和热性能

共混是改善聚合物性能的一种经济可行的方法。为改善丙烯酸乙烯酯橡胶(AEM)的力学性能，制备了一系列氢化丁腈橡胶(HNBR)/AEM共混物。详细研究了HNBR/AEM共混物的力学性能、热性能和相容性。炭黑填充的HNBR/AEM共混物具有优异的力学性能和良好的耐高低温性能。在高温(180℃)空气中，HNBR的反应性高于AEM。HNBR橡胶更容易发生交联反应，而小分子在高温下不易脱除。AEM的降解温度(Td5%)(350℃)低于HNBR(390℃)，而热空气老化试验表明AEM的抗拉强度保持率(95%)远高于HNBR(58%)。HNBR/AEM共混物在全配方范围内均具有相容性，并通过SEM、动态力学分析和力学性能模型进行了相互验证。

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来源期刊

Journal of Rubber Research 化学-高分子科学

自引率

15.40%

发文量

审稿时长

3 months

期刊介绍： The Journal of Rubber Research is devoted to both natural and synthetic rubbers, as well as to related disciplines. The scope of the journal encompasses all aspects of rubber from the core disciplines of biology, physics and chemistry, as well as economics. As a specialised field, rubber science includes within its niche a vast potential of innovative and value-added research areas yet to be explored. This peer reviewed publication focuses on the results of active experimental research and authoritative reviews on all aspects of rubber science. The Journal of Rubber Research welcomes research on: the upstream, including crop management, crop improvement and protection, and biotechnology; the midstream, including processing and effluent management; the downstream, including rubber engineering and product design, advanced rubber technology, latex science and technology, and chemistry and materials exploratory; economics, including the economics of rubber production, consumption, and market analysis. The Journal of Rubber Research serves to build a collective knowledge base while communicating information and validating the quality of research within the discipline, and bringing together work from experts in rubber science and related disciplines. Scientists in both academia and industry involved in researching and working with all aspects of rubber will find this journal to be both source of information and a gateway for their own publications.