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首页> 外文期刊>Journal of Applied Polymer Science >Effect of anhydride-modified ethylene-propylene-diene rubber and ethylene-vinyl acetate copolymers on the compatibilization of nitrile rubber/ethylene-propylene-diene rubber blends
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Effect of anhydride-modified ethylene-propylene-diene rubber and ethylene-vinyl acetate copolymers on the compatibilization of nitrile rubber/ethylene-propylene-diene rubber blends

机译：酸酐改性的乙烯-丙烯-二烯橡胶和乙烯-乙酸乙烯酯共聚物对丁腈橡胶/乙烯-丙烯-二烯橡胶共混物相容性的影响

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摘要

The effects of maleic anhydride modified ethylene-propylene-diene rubber (EPDMMA) and maleic anhydride modified ethylene-vinyl acetate (EVAMA) on the compatibilization of nitrile rubber (NBR)/ethylene-propylene-diene rubber (70:30 w/w) blends vulcanized with a sulfur system were investigated. The presence of EPDMMA and EVAMA resulted in improvements of the tensile properties, whereas no substantial change was detected in the degree of crosslinking. The blend systems were also analyzed with scanning electron microscopy and dynamic mechanical thermal analysis. The presence of EVAMA resulted in a blend with a more homogeneous morphology. The compatibilizing effect of this functional copolymer was also detected with dynamic mechanical analysis. A shift of the glass-transition temperature of the NBR phase toward lower values was observed. The presence of EPDMMA and EVAMA also increased the thermal stability, as indicated by an improvement in the retention of the mechanical properties after aging in an air-circulating oven. (C) 2003 Wiley Periodicals, Inc. [References: 26]
机译：马来酸酐改性的乙烯-丙烯-二烯橡胶（EPDMMA）和马来酸酐改性的乙烯-乙酸乙烯酯（EVAMA）对丁腈橡胶（NBR）/乙烯-丙烯-二烯橡胶（70:30 w / w）的相容性的影响研究了用硫磺系统硫化的共混物。 EPDMMA和EVAMA的存在导致拉伸性能的改善，而交联度没有发现实质性的变化。共混体系也用扫描电子显微镜和动态机械热分析进行了分析。 EVAMA的存在导致了具有更均匀形态的共混物。还通过动态力学分析检测了该功能共聚物的增容作用。观察到NBR相的玻璃化转变温度向更低的值偏移。 EPDMMA和EVAMA的存在还提高了热稳定性，这表明在空气循环烘箱中老化后机械性能的保留得以改善。 （C）2003 Wiley Periodicals，Inc. [参考：26]

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