A new method is presented to measure capillarity-induced negative pressure. Negative pressures of several bars have been measured for five different liquids (ethanol, acetone, cyclohexane, aniline, and water) over a range of surface tension. Capillary negative pressure was measured in 79 ( 3 nmsilica nanochannels on the basis of the determination of the critical channel width for elastocapillary collapse of the flexible plate covering the channels. The results are consistent with the Young-Laplace equation.
- TST-Self Assembly
Tas, N. R., Escalante Marun, M., van Honschoten, J. W., Jansen, H. V., & Elwenspoek, M. C. (2010). Capillary Negative Pressure Measured by Nanochannel Collapse. Langmuir, 26(3), 1473-1476. https://doi.org/10.1021/la903649n