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首页> 外文期刊>Journal of Applied Polymer Science >Effect of vinyl acetate content on the mechanical and thermal properties of ethylene vinyl acetate/MgAl layered double hydroxide nanocomposites
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Effect of vinyl acetate content on the mechanical and thermal properties of ethylene vinyl acetate/MgAl layered double hydroxide nanocomposites

机译：醋酸乙烯酯含量对乙烯醋酸乙烯酯/ MgAl层状双氢氧化物纳米复合材料力学性能和热性能的影响

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摘要

Ethylene vinyl acetate (EVA)/Mg-Al layered double hydroxide (LDH) nanocomposites using EVA of different vinyl acetate contents (EVA-18 and EVA-45) have been prepared by solution blending method. X-ray diffraction and transmission electron microscopic studies of nanocomposites clearly indicate the formation of exfoliated/intercalated structure for EVA-18 and completely delaminated structure for EVA-45. Though EVA-18 nanocomposites do not show significant improvement in mechanical properties, EVA-45 nanocomposites with 5 wt % DS-LDH content results in tensile strength and elongation at break to be 25% and 7.5% higher compared to neat EVA-45. The data from thermogravimetric analysis show that the nanocomposites of EVA-18 and EVA-45 have approximate to 10 degrees C higher thermal decomposition temperature compared to neat EVA. (c) 2008 Wiley Periodicals, Inc.
机译：通过溶液共混法制备了使用不同醋酸乙烯酯含量的EVA（EVA-18和EVA-45）的乙烯醋酸乙烯酯（EVA）/ Mg-Al层状双氢氧化物（LDH）纳米复合材料。纳米复合材料的X射线衍射和透射电子显微镜研究清楚地表明，EVA-18的剥离/插层结构的形成以及EVA-45的完全分层结构的形成。尽管EVA-18纳米复合材料的机械性能没有显着改善，但DS-LDH含量为5 wt％的EVA-45纳米复合材料的拉伸强度和断裂伸长率比纯EVA-45高25％和7.5％。来自热重分析的数据表明，与纯EVA相比，EVA-18和EVA-45的纳米复合材料的热分解温度高约10摄氏度。 （c）2008年Wiley Periodicals，Inc.

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