کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
608076 | 1454600 | 2013 | 7 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Imaging internal flows in a drying sessile polymer dispersion drop using Spectral Radar Optical Coherence Tomography (SR-OCT) Imaging internal flows in a drying sessile polymer dispersion drop using Spectral Radar Optical Coherence Tomography (SR-OCT)](/preview/png/608076.png)
In this work, we present the visualization of the internal flows in a drying sessile polymer dispersion drop on hydrophilic and hydrophobic surfaces with Spectral Radar Optical Coherence Tomography (SR-OCT). We have found that surface features such as the initial contact angle and pinning of the contact line, play a crucial role on the flow direction and final shape of the dried drop. Moreover, imaging through selection of vertical slices using optical coherence tomography offers a feasible alternative compared to imaging through selection of narrow horizontal slices using confocal microscopy for turbid, barely transparent fluids.
Figure optionsDownload high-quality image (238 K)Download as PowerPoint slideHighlights
► SR-OCT visualization of the internal flows in a drop on hydrophilic and hydrophobic surfaces.
► Initial CA and pinning of the CL, play a crucial role on the flow direction and final shape.
► The particles in the drop flow outwards on hydrophilic surface and inwards on hydrophobic surface.
Journal: Journal of Colloid and Interface Science - Volume 395, 1 April 2013, Pages 287–293