Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
8145902 | Infrared Physics & Technology | 2018 | 5 Pages |
Abstract
By using terahertz time-domain spectroscopy (THz-TDS), the transmission spectral images of a series of aliphatic monohydric liquid alcohols were investigated in this work. The image gray value indicated the non-uniform distribution of the liquid. After noise reduction, the depth distribution was computed from the image content, which depended on the wettability of the container surface by the liquid. Then the volume of the liquid crept up to the container surface was compared quantitatively. Our result showed that the surface wettability of the PS container surface by the liquids increased with the alcohol alkyl chain increasing, which was verified by the contact angle of the liquid and the surface. The study indicated that the THz image might offer a potential technique for detecting the wettability of liquid directly without an additional contact angle experiment.
Related Topics
Physical Sciences and Engineering
Physics and Astronomy
Atomic and Molecular Physics, and Optics
Authors
Hui Huang, Hongwei Zhao, Bo Zhang, Yunyun Su, Weixiang Jiang, Bin Cai, Guanjun You, Yan Ma,