Surface Wetting : Characterization, Contact Angle, and Fundamentals (Hardcover) (Kock-yee Law & Hong

Surface Wetting : Characterization, Contact Angle, and Fundamentals (Hardcover) (Kock-yee Law & Hong

Figure 5: Contact angle and surface tension of water droplets in shale nanopores. (a) Effects of pore size on the contact angle of water in shale nanopores at T  = 300 K. The dashed-dot line indicates the experimental contact angle of a macroscopic water droplet on a smooth graphite surface, i.e., 86° at 300 K.

Figure 5: Contact angle and surface tension of water droplets in shale nanopores. (a) Effects of pore size on the contact angle of water in shale nanopores at T = 300 K. The dashed-dot line indicates the experimental contact angle of a macroscopic water droplet on a smooth graphite surface, i.e., 86° at 300 K.

Advances in Contact Angle, Wettability and Adhesion (Vol 2) (Hardcover)

Advances in Contact Angle, Wettability and Adhesion (Vol 2) (Hardcover)

Figure 2: Contact angles of mercury in shale nanopores and its curvature-dependent surface tension. (a) Effects of pore size on the contact angle of mercury in circular and slit-shaped pores at T = 300 K. The green cross points indicate the results obtained by Kutana and Giapis20.

Figure 2: Contact angles of mercury in shale nanopores and its curvature-dependent surface tension. (a) Effects of pore size on the contact angle of mercury in circular and slit-shaped pores at T = 300 K. The green cross points indicate the results obtained by Kutana and Giapis20.

Figure 3(a) A zoom-in of the dolomite crystal in Frame 4 of Fig. 2 illustrating 1) the extracted droplet profile (red dotted line) used for contact-angle assessment and 2) the fit of the parameterized Young-Laplace equation (green dotted line) used to estimate left and right contact angles, and droplet dimensions. The procedure for micro-droplet contact angle assessment is provided in the “Methods” section. The measured drop height and width is 17.1 μm and 48.4 μm, respectively.

Figure 3(a) A zoom-in of the dolomite crystal in Frame 4 of Fig. 2 illustrating 1) the extracted droplet profile (red dotted line) used for contact-angle assessment and 2) the fit of the parameterized Young-Laplace equation (green dotted line) used to estimate left and right contact angles, and droplet dimensions. The procedure for micro-droplet contact angle assessment is provided in the “Methods” section. The measured drop height and width is 17.1 μm and 48.4 μm, respectively.

Figure 5: Different responses to oil-fouling between Hydrogel/GO FO membrane and HTI FO membranes. (a,b) Water contact angle and underwater oil contact angle of Hydrogel/GO FO membrane, respectively. (c,d) Water contact angle and underwater oil contact angle of HTI FO membrane, respectively.

Figure 5: Different responses to oil-fouling between Hydrogel/GO FO membrane and HTI FO membranes. (a,b) Water contact angle and underwater oil contact angle of Hydrogel/GO FO membrane, respectively. (c,d) Water contact angle and underwater oil contact angle of HTI FO membrane, respectively.

Figure 1: Determination of Hg-C interaction potential. (a) Cosine of the contact angle θ as a function of the reciprocal of the droplet base radius, 1/rB. The results were obtained from MD simulations using different mercury-carbon interaction parameters, i.e., εHg-C/kB = 10.29, 14.70, and 19.11 K, for droplets consisting of an increasing number of mercury atoms (2,000 through 8,000). For each εHg-C, the intercept of the linear fit provides the macroscopic contact angle θ∞.

Figure 1: Determination of Hg-C interaction potential. (a) Cosine of the contact angle θ as a function of the reciprocal of the droplet base radius, 1/rB. The results were obtained from MD simulations using different mercury-carbon interaction parameters, i.e., εHg-C/kB = 10.29, 14.70, and 19.11 K, for droplets consisting of an increasing number of mercury atoms (2,000 through 8,000). For each εHg-C, the intercept of the linear fit provides the macroscopic contact angle θ∞.

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RAME  HART  100-00  Contact Angle Goniometer #RameHart

RAME HART 100-00 Contact Angle Goniometer #RameHart

Figure 3: Value of −γHgcosθHg calculated from different models as a function of pore radius r. θHg(r) and γHg(r) represent the dependence of contact angle and surface tension on pore size taken into account in the model. Constant θHg and γHg indicate that the parameters remain unchanged, i.e., θHg = 152.5°, and γHg = 475.5 mN/m.

Figure 3: Value of −γHgcosθHg calculated from different models as a function of pore radius r. θHg(r) and γHg(r) represent the dependence of contact angle and surface tension on pore size taken into account in the model. Constant θHg and γHg indicate that the parameters remain unchanged, i.e., θHg = 152.5°, and γHg = 475.5 mN/m.

Angle Business Agency Web Template Design on Behance

Angle Business Agency Web Template Design

Rame-hart goniometer -  a contact angle goniometer to measure contact angle, surface energy and surface tension.

Surface scientists use a contact angle goniometer to measure contact angle, surface energy and surface tension.

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