Understanding the effects of surface roughness on the temperature and pressure relevancy of water contact angles

Article Chemistry, Physical

Unraveling the synergistic effects of solid surface material and temperature on the contact angle of water under an elevated pressure: An experimental study

Jia-Wen Song et al.

Summary: The study systematically characterized the water contact angle on various surfaces at high temperatures, revealing the significant influence of solid surface type on the temperature-dependent water contact angle. Altering the surface material can manipulate the temperature coefficients and critical temperature points on the contact angle-temperature curves, but the influence of surface material weakens with increasing temperature.

JOURNAL OF COLLOID AND INTERFACE SCIENCE (2022)

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Article Chemistry, Physical

Understanding the effects of pressure on the contact angle of water on a silicon surface in nitrogen gas environment: Contrasts between low- and high-temperature regimes

Jia-Wen Song et al.

Summary: The experimental results showed that the interfacial tension between water and N-2 decreases linearly with increasing pressure, and the pressure coefficient decreases as temperature rises. The pressure dependence of the water contact angle exhibits different trends at low and high temperatures, attributed to N-2 adsorption on the surfaces of water and silicon. The variations in the water contact angle with pressure are determined by the changes in water-N-2 and Si-N-2 interfacial tensions manipulated by pressure and temperature.

JOURNAL OF COLLOID AND INTERFACE SCIENCE (2022)

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Article Chemistry, Physical

Temperature dependence of the contact angle of water: A review of research progress, theoretical understanding, and implications for boiling heat transfer

Jia-Wen Song et al.

Summary: Contact angle is a quantitative measure of surface wettability and plays a significant role in understanding phenomena like boiling heat transfer. The temperature dependence of water's contact angle is essential for estimating key surface thermodynamic properties. The variation of water contact angle with temperature can be classified into different regimes and has implications for various applications.

ADVANCES IN COLLOID AND INTERFACE SCIENCE (2021)

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Article Chemistry, Physical