The objective of this study is to assess the impact of incorporating a dual-functionalized organoclay with amine groups on the morphology and thermal characteristics of nanocomposites based on epoxidized natural rubber (ENR). To achieve this, organomodified montmorillonite clay (Cloisite30B) underwent treatment with 3-aminopropyltriethoxysilane (APS) via a silanization reaction, aiming to promote better interaction and compatibility between the two components. The structural and thermal properties of the resulting amine-functionalized Cloisite30B (f-C30B) were analyzed using infrared spectroscopy (FTIR), X-ray diffraction (XRD), and thermogravimetric analysis (TGA). Subsequently, various amounts of f-C30B (0, 1, 2.5, 5, 7.5, or 10 phr) were dispersed successfully in the ENR matrix using a solvent blending technique to create ENR/f-C30B nanocomposites. Standard techniques, including XRD, transmission electron microscopy (TEM), and TGA, were employed to analyze the nanocomposites for their structure and morphology. The morphological analysis revealed a uniform distribution of f-C30B throughout the ENR matrix. Moreover, TGA analysis indicated higher decomposition temperatures for ENR with f-C30B: 341 °C, 339 °C, 341 °C, 348 °C, and 352 °C for 1, 2.5, 5, 7.5, and 10 phr f-C30B, respectively, enhancing thermal stability. Char residues also rose accordingly: 2.3%, 1.9%, 3.7%, 4.9%, and 7.8%, respectively.

中文翻译：

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有机粘土增强环氧化天然橡胶纳米复合材料的制备和评价：综合研究

本研究的目的是评估掺入具有胺基的双官能化有机粘土对基于环氧化天然橡胶（ENR）的纳米复合材料的形态和热特性的影响。为了实现这一目标，有机改性蒙脱石粘土 (Cloisite30B) 通过硅烷化反应用 3-氨基丙基三乙氧基硅烷 (APS) 进行处理，旨在促进两种组分之间更好的相互作用和相容性。使用红外光谱 (FTIR)、X 射线衍射 (XRD) 和热重分析 (TGA) 分析所得胺官能化 Cloisite30B (f-C30B) 的结构和热性能。随后，使用溶剂混合技术将不同量的 f-C30B（0、1、2.5、5、7.5 或 10 份）成功分散在 ENR 基质中，形成 ENR/f-C30B 纳米复合材料。采用 XRD、透射电子显微镜 (TEM) 和 TGA 等标准技术来分析纳米复合材料的结构和形态。形态分析显示 f-C30B 在整个 ENR 矩阵中均匀分布。此外，TGA 分析表明 ENR 与 f-C30B 的分解温度较高：对于 1、2.5、5、7.5 和 10 份 f-C30B，ENR 的分解温度为 341 °C、339 °C、341 °C、348 °C 和 352 °C ，分别提高热稳定性。炭残留物也相应上升：分别为2.3%、1.9%、3.7%、4.9%和7.8%。