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首页> 外文期刊>Journal of Applied Polymer Science >Mechanical Properties of Epoxy Resins Reinforced with Synthetic Boehmite (AlOOH) Nanosheets
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Mechanical Properties of Epoxy Resins Reinforced with Synthetic Boehmite (AlOOH) Nanosheets

机译：合成勃姆石（AlOOH）纳米片增强的环氧树脂的机械性能

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In this article, sheet boehmite (AlOOH), which was synthesized via a facile and environmental friendly method, was used as reinforcing agent to toughen Bisphenol A epoxy resin. The result of X-ray Diffraction (XRD) and IR spectrum indicated that the as-synthesized product was pure crystalline and high purity AlOOH. The effects of sheet AlOOH on the mechanical properties of AlOOH/epoxy nanocomposites were investigated. The results indicated that the introduction of AlOOH significantly improved the mechanical properties of epoxy resin. Compared with neat epoxy resin, the tensile strength and the fracture toughness (K-IC) of the AlOOH/epoxy nanocomposites filled with 4 wt % AlOOH increased by 24.2% and 28.7%, respectively, while the flexural strength increased from 40.92 to 50.00 MPa. From Scanning Electron Microscope (SEM), a phase-separated morphology and plenty of cervices and river branches were observed in the fractured surfaces of composites. With the increase of sheet AlOOH content, river-shaped cracks became more and more intensive. Overall, the addition of sheet AlOOH is shown as a promising method for mechanical properties enhancement of epoxy matrix. (c) 2014 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2015, 132, 41409.
机译：在本文中，通过简便且环保的方法合成的薄水铝石（AlOOH）被用作增强双酚A环氧树脂的增强剂。 X射线衍射（XRD）和红外光谱的结果表明，所合成的产物是纯晶体和高纯度的AlOOH。研究了片状AlOOH对AlOOH /环氧纳米复合材料的机械性能的影响。结果表明，AlOOH的引入显着改善了环氧树脂的机械性能。与纯环氧树脂相比，填充了4 wt％AlOOH的AlOOH /环氧树脂纳米复合材料的拉伸强度和断裂韧性（K-IC）分别提高了24.2％和28.7％，而抗弯强度从40.92提高到50.00 MPa 。根据扫描电子显微镜（SEM），在复合材料的断裂表面观察到相分离的形态以及大量的子宫颈和河流分支。随着片材AlOOH含量的增加，河形裂纹变得越来越强烈。总的来说，添加片材AlOOH被显示为增强环氧基质的机械性能的有前途的方法。 （c）2014 Wiley Periodicals，Inc. J. Appl。 Polym。科学2015，132，41409。

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