熔融法制备EVA/OMMT纳米复合材料及其热性能和动态力学性能

Thermal Properties and Dynamic Mechanical Behavior of Poly(ethylene-co-vinyl acetate)/Montmorillonite Nanocomposites Prepared by Melt blending

利用熔融法制备了乙烯醋酸乙烯酯共聚物(EVA)/蒙脱土(OMMT)纳米复合材料,用X射线衍射(XRD)表征该纳米复合材料是插层结构;动态力学分析(DMA)结果显示,EVA/OMMT纳米复合材料的储能模量随着有机蒙脱土质量分数的增加而提高;用热重分析法(TG)研究了EVA/OMMT纳米复合材料中EVA主链的热稳定性。

EVA/OMMT nanocomposites have been prepared by melt blending. The intercalated structures of EVA/OMMT nanocomposites were characterized by XRD. The effect of the content of organic montmorillonite(OMMT) on the dynamic mechanical behavior of EVA/OMMT nanocomposites was studied by DMA, and the results showed that the storage modulus of EVA/OMMT nanocomposites increased with the content of OMMT. The thermal stability of the EVA in the nanocomposites was studied by TGA.