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首页> 外文期刊>Journal of Applied Polymer Science >Study on the morphology, static and dynamic mechanical properties of (styrene butadiene rubber/ethylene propylene diene monomer/organoclay) nanocomposites vulcanized by the gamma radiation
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Study on the morphology, static and dynamic mechanical properties of (styrene butadiene rubber/ethylene propylene diene monomer/organoclay) nanocomposites vulcanized by the gamma radiation

机译：γ射线硫化的（丁苯橡胶/乙烯丙烯二烯单体/有机粘土）纳米复合材料的形貌，静态和动态力学性能的研究

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摘要

Blends of styrene-butadiene rubber/ethylene-propylene-diene monomer (SBR/EPDM) with and without organoclay (OC) were prepared by melt mixing method. Then the samples were vulcanized by gamma radiation in comparison to conventional sulfur curing system. Characterization by X-ray diffraction analysis, atomic force microscopy, and Field emission scanning electron microscopy revealed the intercalation structure and good dispersion of the OC in prepared nanocomposites. In addition to this, by increasing the absorbed dose of radiation and using OC, reduction in solvent uptake, increase in crosslink density and improvement of mechanical and dynamic-mechanical properties were observed. Comparison of the tensile strength of irradiated nanocomposite with the sulfur cured one's displayed the synergistic effect of the OC and gamma radiation on tensile properties of SBR/EPDM blend. Mooney-Rivlin plot confirmed the increase in crosslink density and interaction between rubbers due to presence of OC and increasing absorbed dose. (c) 2016 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2016, 133, 43581.
机译：通过熔融混合法制备了有和没有有机粘土（OC）的丁苯橡胶/乙烯-丙烯-二烯单体（SBR / EPDM）的共混物。然后，与常规硫磺硫化系统相比，样品通过伽马射线辐射进行硫化。通过X射线衍射分析，原子力显微镜和场发射扫描电子显微镜进行表征，揭示了OC在制备的纳米复合材料中的嵌入结构和良好的分散性。除此之外，通过增加辐射的吸收剂量和使用OC，观察到溶剂吸收的减少，交联密度的增加以及机械和动态机械性能的改善。辐照的纳米复合材料与硫磺固化的复合材料的拉伸强度的比较表明，OC和γ射线对SBR / EPDM共混物的拉伸性能具有协同作用。 Mooney-Rivlin曲线证实，由于存在OC和吸收剂量增加，交联密度和橡胶之间的相互作用增加。 （c）2016 Wiley Periodicals，Inc. J. Appl。 Polym。科学2016，133，43581。

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