Abstract Following our previous work on morphology, corrosion resistance and thermal properties of unsaturated polyester (UP)/nanoclay composites, the effect of electron beam (EB) irradiation on mechanical properties of UP/nanoclay composites with various nanoclay contents is investigated in this work. Moreover, influence of EB irradiation with doses of 100, 500 and 1000 kGy on tensile properties and hardness of nanocomposite was examined. FTIR spectroscopy was employed to examine the effect of irradiation on chemical structure of polymer. EB irradiation up to 500 kGy led to the improvement of tensile strength and hardness of the samples. The best mechanical properties were observed for the nanocomposite with 1 wt.% nanoclay content. As the selected nanocomposite, UP/nanoclay(1 wt.%) composite was reinforced by carbon and glass fibers and the effect of EB irradiation on the mechanical properties of the prepared UP/nanoclay/fiber composites was studied. When compared to the fiber-reinforced UP without nanoclay, presence of nanoclay particles in UP/nanoclay/fiber composites resulted in the better mechanical properties and higher radiation resistance. Hence, the UP/nanoclay/fiber composite with proper amount of nanoclay has been shown to be a dependable choice for structural applications in which the material is exposed to ionizing radiations.

中文翻译：

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电子束辐照对碳纤维和玻璃纤维增​​强不饱和聚酯/纳米粘土复合材料力学性能的影响

摘要 根据我们之前对不饱和聚酯 (UP)/纳米粘土复合材料的形态、耐腐蚀性和热性能的研究，本工作研究了电子束 (EB) 辐照对不同纳米粘土含量的 UP/纳米粘土复合材料机械性能的影响。此外，研究了 100、500 和 1000 kGy 剂量的 EB 辐射对纳米复合材料的拉伸性能和硬度的影响。FTIR 光谱用于检查辐照对聚合物化学结构的影响。高达 500 kGy 的 EB 辐照导致样品的拉伸强度和硬度提高。对于纳米粘土含量为 1 wt.% 的纳米复合材料，观察到最佳机械性能。作为选定的纳米复合材料，UP/纳米粘土（1 wt. %) 复合材料由碳纤维和玻璃纤维增​​强，研究了 EB 辐照对制备的 UP/纳米粘土/纤维复合材料机械性能的影响。与不含纳米粘土的纤维增强 UP 相比，UP/纳米粘土/纤维复合材料中纳米粘土颗粒的存在导致更好的机械性能和更高的耐辐射性。因此，具有适量纳米粘土的 UP/纳米粘土/纤维复合材料已被证明是材料暴露于电离辐射的结构应用的可靠选择。UP/纳米粘土/纤维复合材料中纳米粘土颗粒的存在导致更好的机械性能和更高的抗辐射性。因此，具有适量纳米粘土的 UP/纳米粘土/纤维复合材料已被证明是材料暴露于电离辐射的结构应用的可靠选择。UP/纳米粘土/纤维复合材料中纳米粘土颗粒的存在导致更好的机械性能和更高的抗辐射性。因此，具有适量纳米粘土的 UP/纳米粘土/纤维复合材料已被证明是材料暴露于电离辐射的结构应用的可靠选择。