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首页> 外文会议>National Symposium on Polymeric Materials >Synergistic effect of hybrid nanofiller (nano-calcium carbonate/nano-silicone dioxide) on the tensile and impact properties of modified epoxy resin (EP/CTBN) composites
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Synergistic effect of hybrid nanofiller (nano-calcium carbonate/nano-silicone dioxide) on the tensile and impact properties of modified epoxy resin (EP/CTBN) composites

机译：杂化纳米填料（纳米碳酸钙/纳米硅氧烷二氧化硅）对改性环氧树脂（EP / CTBN）复合材料的拉伸和冲击性能的协同作用

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In this study, hybrid nanofillers of Nano-Calcium Carbonate (n-CaCO_3) and Nano-Silicone Dioxide (n-SiO_2) were used to reinforce the modified epoxy resin (CTBN-m-Ep). The modified epoxy resin composites were fabricated by incorporating 0.05, 0.3, 0.5, 0.7 and 1.0 wt.% of n-SiO_2 and co-reinforced with a constant n-CaCO_3 content. The nanocomposites were prepared by mixing carbonyl terminated polybutadiene (CTBN), n-CaCO_3, and n-SiO_2 and epoxy resin via sonication method and further mixed by a mechanical stirrer. The synergistic effect of hybrid nanofillers on the CTBN-m-Ep composites properties were studied by conducting the mechanical (tensile and dart impact) test and the morphological characters of fractured samples were analysed by scanning electron microscopy (SEM). The tensile strength and modulus properties of nanocomposites displayed the same trend where the optimum ratio was achieved for F_4 containing 0.05 wt. % of n-SiO_2 loading. It was noted that the synergistic effect of hybrid nanofiller occured at this composition by showing a significant enhancement of the tensile strength and modulus properties due to better stress transfer owing to the homogeneous dispersion of n-SiO_2/n-CaCO_3 within modified epoxy matrix, thus resulting in a good filler-matrix interaction. In contrast, the maximum toughening of nanocomposites was achieved for F8 that containing the highest value of n-SiO_2.
机译：在这项研究中，纳米碳酸钙（正碳酸钙）和纳米二氧化硅（正SiO_2）的混合纳米填料被用来增强改性环氧树脂（CTBN-M-EP）。改性环氧树脂复合材料通过将0.05，0.3，0.5，0.7和1.0重量制成。正SiO_2的％并且以恒定的正碳酸钙含量共同增强。纳米复合材料通过混合羰基封端的聚丁二烯（CTBN）中制备，正碳酸钙和正SiO_2和通过超声处理方法环氧树脂和由机械搅拌器进一步混合。混合纳米填料上的CTBN-M-EP的协同效应复合材料通过进行机械（拉伸和落镖冲击）测试和断裂样品的形态特征通过扫描电子显微镜（SEM）进行分析性能进行了研究。纳米复合材料的拉伸强度和模量性能显示，其中所述最佳比例为含有0.05重量F_4取得的相同的趋势。 ％N-SiO_2负载。有人指出，混合式纳米填料的协同效应在该组合物发生通过示出的拉伸强度和模量性能的显著增强由于更好的应力传递由于正SiO_2 /正碳酸钙的改性的环氧基质中的均匀分散体，从而产生了良好的填料 - 基质相互作用。相比之下，纳米复合材料的最大增韧是为F8实现了含有n SiO_2的最高值。

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