Effect of sodium montmorillonite source on nylon 6/clay nanocomposites
Effect of sodium montmorillonite source on nylon 6/clay nanocomposites
复制标题
钠蒙脱石源对尼龙6/粘土纳米复合材料的影响
DOI：
10.1016/j.polymer.2004.01.061
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发表时间：
2004
期刊：
影响因子：
4.6
通讯作者：
D. R. Paul
中科院分区：
文献类型：
--
作者：
T. D. Fornes;D. Hunter;D. R. Paul
采用等效实验条件考察了蒙脱土钠源对尼龙6纳米复合材料形貌和性能的影响。从日本山形和美国怀俄明两个著名矿山中获得的蒙脱土钠样品与相同的烷基氯化铵化合物进行了离子交换。所得的有机粘土在相同的工艺条件下被挤出具有高分子量等级的尼龙6。定量分析两种纳米复合材料的TEM显微照片显示，山形纳米复合材料的平均颗粒长度略大，血小板脱落程度略高，因此，转化为更高的颗粒宽高比。纳米复合材料的应力应变行为似乎反映了纳米复合材料的形态，因为随着颗粒长径比的增加，可以获得更高的刚度和强度。此外，两种纳米复合材料之间的刚度行为趋势可以用传统的复合材料理论来解释。
The effect of sodium montmorillonite source on the morphology and properties of nylon 6 nanocomposites was examined using equivalent experimental conditions. Sodium montmorillonite samples acquired from two well-known mines, Yamagata, Japan, and Wyoming, USA, were ion exchanged with the same alkyl ammonium chloride compound. The resulting organoclays were extruded with a high molecular weight grade of nylon 6 under the same processing conditions. Quantitative analysis of TEM photomicrographs of the two nanocomposites reveal a slightly larger average particle length and a slightly higher degree of platelet exfoliation for the Yamagata based nanocomposite than the Wyoming version, thus, translating into a higher particle aspect ratio. The stress–strain behavior of the nanocomposites appears to reflect the nanocomposite morphology, in that higher stiffness and strengths are attainable with the increased particle aspect ratio. Moreover, the trends in stiffness behavior between the two types of nanocomposites may be explained by conventional composite theory.