材料科学
纳米复合材料
复合材料
聚合物
极限抗拉强度
纳米尺度
聚合物纳米复合材料
陶瓷
刚度
纳米技术
作者
Paul Podsiadlo,Amit Kaushik,Ellen M. Arruda,Anthony M. Waas,Bong Sup Shim,Jiadi Xu,Himabindu Nandivada,Benjamin G. Pumplin,Joerg Lahann,Ayyalusamy Ramamoorthy,Nicholas A. Kotov
出处
期刊:Science
[American Association for the Advancement of Science (AAAS)]
日期:2007-10-05
卷期号:318 (5847): 80-83
被引量:1472
标识
DOI:10.1126/science.1143176
摘要
Nanoscale building blocks are individually exceptionally strong because they are close to ideal, defect-free materials. It is, however, difficult to retain the ideal properties in macroscale composites. Bottom-up assembly of a clay/polymer nanocomposite allowed for the preparation of a homogeneous, optically transparent material with planar orientation of the alumosilicate nanosheets. The stiffness and tensile strength of these multilayer composites are one order of magnitude greater than those of analogous nanocomposites at a processing temperature that is much lower than those of ceramic or polymer materials with similar characteristics. A high level of ordering of the nanoscale building blocks, combined with dense covalent and hydrogen bonding and stiffening of the polymer chains, leads to highly effective load transfer between nanosheets and the polymer.
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