Abstract The primary objective of this study is to improve the properties of NR/PVA blend which is cured using glutaraldehyde at low temperature. PMMA grafted on to NR with different grafting levels has been prepared and confirmed the grafting reaction by TEM, FT-IR and 1H-NMR. The effect of PMMA contents on NR with 1 phr of nano-clay on the mechanical properties and thermal stability has also been investigated. Significant enhancement in mechanical and thermal stability of the blends with higher grafting level on NR is observed. Activation energy of degradation has been determined from TGA curves by using the Horowitz-Metzger equation. The nature of dispersion and surface morphology has been studied using SEM-EDX technique. The experimental results reveal that the properties can be improved by adding functional group (i.e. PMMA) onto NR molecule.

中文翻译：

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接枝水平和纳米粘土负载量对固化 NR/PVA 共混物性能的影响

摘要 本研究的主要目的是改善使用戊二醛在低温下固化的 NR/PVA 共混物的性能。已经制备了以不同接枝水平接枝到 NR 上的 PMMA，并通过 TEM、FT-IR 和 1H-NMR 证实了接枝反应。还研究了 PMMA 含量对含 1 份纳米粘土的 NR 机械性能和热稳定性的影响。观察到在 NR 上具有更高接枝水平的共混物的机械和热稳定性显着增强。降解的活化能已通过使用 Horowitz-Metzger 方程从 TGA 曲线确定。已经使用 SEM-EDX 技术研究了分散的性质和表面形态。实验结果表明，通过在NR分子上添加官能团（即PMMA）可以改善性能。