Department of Physics, University of Houston - Clear Lake, 2700 Bay Area Boulevard, Houston, Texas 77058, United States.
Nano Lett. 2012 Jul 11;12(7):3497-500. doi: 10.1021/nl301008m. Epub 2012 Jun 15.
Composite coatings have been developed that reveal strains in underlying structural elements through noncontact optical measurement. Dilute individualized single-walled carbon nanotubes are embedded in a polymeric host and applied to form a thin coating. Strain in the substrate is transmitted through the polymer to the nanotubes, causing systematic and predictable spectral shifts of the nanotube near-infrared fluorescence peaks. This new method allows quick and precise strain measurements at any position and along any direction of the substrate.
已经开发出了一种复合涂层，它可以通过非接触式光学测量来显示底层结构元件的应变。将稀有的单壁碳纳米管分散体嵌入聚合物基质中，并涂覆成一层薄膜。基质的应变通过聚合物传递到纳米管，导致纳米管近红外荧光峰的系统和可预测的光谱位移。这种新方法允许在基底的任何位置和任何方向进行快速和精确的应变测量。
