首页> 外文会议>Nano Science and Technology Institute(NSTI) Nanotechnology Conference and Trade Show(NSTI Nanotech 2007) vol.4; 20070520-24; Santa Clara,CA(US) >Confocal Raman AFM - A Powerful Tool for the Nondestructive Characterization of Heterogeneous Materials
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Confocal Raman AFM - A Powerful Tool for the Nondestructive Characterization of Heterogeneous Materials

机译:共聚焦拉曼原子力显微镜-一种用于异质材料无损表征的强大工具

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The combination of an atomic force microscope (AFM) and a Confocal Raman Microscope (CRM) has been used to study an emulsion consisting of alkyd and acrylic latexes. Alkyds and acrylics are used as binders in paints and coatings. These materials produce a shiny, hard finish that is highly water-resistant. The high spatial resolution of the AFM enables the morphological characterization of the dried emulsion on the nanometer scale. Furthermore, when operating the AFM in Digital Pulsed Force Mode (DPFM), topographic information and local mechanical properties can be simultaneously recorded, allowing a comparison of the mechanical properties of the emulsion components. Raman spectroscopy provides additional information on the chemical composition of materials. In combination with a confocal microscope, the spatial distribution of the various phases can be determined with a resolution down to 200 nm. Therefore, the topographically different structures observed in AFM images can be associated to the chemical composition by using the Confocal Raman Microscope (CRM).
机译:原子力显微镜(AFM)和共焦拉曼显微镜(CRM)的组合已用于研究由醇酸和丙烯酸乳胶组成的乳液。醇酸和丙烯酸被用作油漆和涂料中的粘合剂。这些材料产生了高度防水的光泽,硬质涂层。 AFM的高空间分辨率使得能够在纳米尺度上表征干燥乳液的形态。此外,以数字脉冲力模式(DPFM)操作AFM时,可以同时记录地形信息和局部机械性能,从而可以比较乳液组分的机械性能。拉曼光谱学提供了有关材料化学成分的其他信息。与共聚焦显微镜结合使用,可以以低至200 nm的分辨率确定各个相的空间分布。因此,通过使用共聚焦拉曼显微镜(CRM),可以将AFM图像中观察到的形貌不同的结构与化学成分相关联。

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