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Articoli di riviste sul tema "Contact angle"

Autore: Grafiati

Pubblicato: 4 giugno 2021

Ultima modifica: 25 luglio 2025

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1

Marmur, Abraham. "Contact angle equilibrium: the intrinsic contact angle." Journal of Adhesion Science and Technology 6, no. 6 (1992): 689–701. http://dx.doi.org/10.1163/156856192x01042.

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2

Kwok, D. Y., and A. W. Neumann. "Contact angle measurement and contact angle interpretation." Advances in Colloid and Interface Science 81, no. 3 (1999): 167–249. http://dx.doi.org/10.1016/s0001-8686(98)00087-6.

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3

Yang, S. Y., G. J. Hirasaki, S. Basu, and R. Vaidya. "Mechanisms for contact angle hysteresis and advancing contact angles." Journal of Petroleum Science and Engineering 24, no. 2-4 (1999): 63–73. http://dx.doi.org/10.1016/s0920-4105(99)00049-2.

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4

Wang, J. H., P. M. Claesson, J. L. Parker, and H. Yasuda. "Dynamic Contact Angles and Contact Angle Hysteresis of Plasma Polymers." Langmuir 10, no. 10 (1994): 3887–97. http://dx.doi.org/10.1021/la00022a080.

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5

Ruiz-Cabello, F. J. Montes, M. A. Rodríguez-Valverde, and M. A. Cabrerizo-Vílchez. "Equilibrium contact angle or the most-stable contact angle?" Advances in Colloid and Interface Science 206 (April 2014): 320–27. http://dx.doi.org/10.1016/j.cis.2013.09.003.

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6

Liu, Yong-Ming, Zi-Qing Wu, Sheng Bao, et al. "The Possibility of Changing the Wettability of Material Surface by Adjusting Gravity." Research 2020 (January 27, 2020): 1–11. http://dx.doi.org/10.34133/2020/2640834.

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The contact angle, as a vital measured parameter of wettability of material surface, has long been in dispute whether it is affected by gravity. Herein, we measured the advancing and receding contact angles on extremely low contact angle hysteresis surfaces under different gravities (1-8G) and found that both of them decrease with the increase of the gravity. The underlying mechanism is revealed to be the contact angle hysteresis and the deformation of the liquid-vapor interface away from the solid surface caused by gradient distribution of the hydrostatic pressure. The real contact angle is n

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7

Chen, Yongjiang, and Wencheng Tang. "Determination of contact stiffness in ball screws considering variable contact angles." Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science 228, no. 12 (2014): 2193–203. http://dx.doi.org/10.1177/0954406213516304.

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The contact angles formed at the position of each ball in ball screws are conventionally assumed to be a constant value in determination of contact stiffness. In this study, instead of being treated as pre-assumed constants, the contact angle is formulated as functions of the position angle of balls to reﬂect their distribution dependent on the operation condition and design parameters. After establishing a proper transformed coordinate system according to the ball screw mechanism, the variable contact angles and normal forces of the ball screw are predicted. Then the contact stiffness obtaine

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8

Lyashenko, Iakov A., Valentin L. Popov, and Vadym Borysiuk. "Indentation and Detachment in Adhesive Contacts between Soft Elastomer and Rigid Indenter at Simultaneous Motion in Normal and Tangential Direction: Experiments and Simulations." Biomimetics 8, no. 6 (2023): 477. http://dx.doi.org/10.3390/biomimetics8060477.

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In reported experiments, a steel indenter was pressed into a soft elastomer layer under varying inclination angles and subsequently was detached under various inclination angles too. The processes of indentation and detachment were recorded with a video camera, and the time dependences of the normal and tangential components of the contact force and the contact area, as well as the average contact pressure and average tangential stresses, were measured as functions of the inclination angle. Based on experimental results, a simple theoretical model of the indentation process is proposed, in whi

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9

Butt, Hans-Jürgen, Jie Liu, Kaloian Koynov, et al. "Contact angle hysteresis." Current Opinion in Colloid & Interface Science 59 (June 2022): 101574. http://dx.doi.org/10.1016/j.cocis.2022.101574.

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10

Kwok, D. Y., and A. W. Neumann. "Contact angle interpretation: re-evaluation of existing contact angle data." Colloids and Surfaces A: Physicochemical and Engineering Aspects 161, no. 1 (2000): 49–62. http://dx.doi.org/10.1016/s0927-7757(99)00324-6.

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11

Rakhorst, G., H. C. Van Der Mei, W. Van Oeveren, H. T. Spijker, and H. J. Busscher. "Time-Related Contact Angle Measurements with Human Plasma on Biomaterial Surfaces." International Journal of Artificial Organs 21, no. 1 (1998): 35–39. http://dx.doi.org/10.1177/039139889802100108.

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Axisymmetric drop shape analysis by profile (ADSA-P) was used to assess in time contact angle changes of human plasma drops placed on four different biomaterials. Results were related with conventional blood compatibility measurements: albumin adsorption, fibrinogen adsorption and platelet adhesion. While contact angle measurements with water are material-related but constant in time, contact angle measurements with plasma changed over time owing to protein adsorption on the solid-liquid interface. The contact medium plasma did not influence the initial contact angle. Contact angles on PDMS de

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12

Benilov, E. S., and M. Vynnycky. "Contact lines with a contact angle." Journal of Fluid Mechanics 718 (February 8, 2013): 481–506. http://dx.doi.org/10.1017/jfm.2012.625.

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AbstractThis work builds on the foundation laid by Benney & Timson (Stud. Appl. Maths, vol. 63, 1980, pp. 93–98), who examined the flow near a contact line and showed that, if the contact angle is $18{0}^{\circ } $, the usual contact-line singularity does not arise. Their local analysis, however, does not allow one to determine the velocity of the contact line and their expression for the shape of the free boundary involves undetermined constants. The present paper considers two-dimensional Couette flows with a free boundary, for which the local analysis of Benney & Timson can be compl

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13

Ali, Moazzam, Hammas Ullah, Hamza Javaid, Nauman Naeem, Ali Turab Jafry, and Huma Ajab. "Influence of Inclined Chip Angles on Dynamic Contact Angle Variations in Digital Microfluidics." MATEC Web of Conferences 398 (2024): 01022. http://dx.doi.org/10.1051/matecconf/202439801022.

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The impact of tilted angles on contact angles of water droplets in digital microfluidics was investigated. Experiments were conducted tilting the chip from 0 to 10 degrees at voltage increments of 50V from 250V to 400V DC. Both advancing and receding contact angles of the water droplets were measured at each angle and voltage combination. As the tilted angle increased from horizontal to 10 degrees, the advancing contact angle generally decreased whereas the receding contact angle increased. This trend held for all tested voltages. The changes were more pronounced at higher tilt angles above 5

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14

Li, Gang. "Superhydrophobicity of Silicon-Based Microstructured Surfaces." Advanced Materials Research 989-994 (July 2014): 267–69. http://dx.doi.org/10.4028/www.scientific.net/amr.989-994.267.

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Here, a simple method was presented for fabricating superhydrophobic silicon surfaces. Square-pillar-array samples were fabricated on silicon substrates by using the femtosecond laser micromachining technology. We measured the static and dynamic contact angles for water on these surfaces. The contact angles and the rolling angles on the silicon surfaces were measured through an optical contact angle meter. Wettability studies revealed the films exhibited a superhydrophobic behaviour with a higher contact angle and lower rolling angle-a water droplet moved easily on the surface.

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15

Ruth, Douglas. "Is contact angle a cause or an effect? – A cautionary tale." E3S Web of Conferences 146 (2020): 03004. http://dx.doi.org/10.1051/e3sconf/202014603004.

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The most influential parameter on the behavior of two-component flow in porous media is “wettability”. When wettability is being characterized, the most frequently used parameter is the “contact angle”. When a fluid-drop is placed on a solid surface, in the presence of a second, surrounding fluid, the fluid-fluid surface contacts the solid-surface at an angle that is typically measured through the fluid-drop. If this angle is less than 90°, the fluid in the drop is said to “wet” the surface. If this angle is greater than 90°, the surrounding fluid is said to “wet” the surface. This definition

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16

Çobanoğlu, Nur, Alper Mete Genç, Sila Övgü Korkut, Ziya Haktan Karadeniz, and Matthias H. Buschmann. "Volume-independent contact angle prediction." High Temperatures-High Pressures 50, no. 4-5 (2021): 453–66. http://dx.doi.org/10.32908/hthp.v50.1021.

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The contact angle of droplets attracts attention as one of the relevant thermophysical properties describing the wettability behaviour of the fluids. The contact angle depends on the surface characteristics such as surface type and roughness as well as on the liquid type and surrounding atmosphere. This study aims to correct the error in the coefficient of the theoretical model developed for droplet shape prediction by Vafaei and Podowski [1]. The corrected model is also rearranged by non-dimensional numbers. The contact angle and the shape of water droplets for different volumes and surface t

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17

ZHANG, XINPING, SIRONG YU, ZHENMING HE, and YAOXIN MIAO. "WETTING OF ROUGH SURFACES." Surface Review and Letters 11, no. 01 (2004): 7–13. http://dx.doi.org/10.1142/s0218625x04005925.

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This paper focuses on effects of roughness on wettability. According to Wenzel's equation, the transition of theoretical wetting contact angles is 90°, whereas many experimental results have indicated that such a transition takes place at contact angles smaller than 90°. A new model of wetting on roughness surface is established in this paper. The model indicates that the influencing factors of wetting on roughness surface include not only equilibrium contact angle θ0 and surface roughness, but also the system of liquids and solid substrates. There is a corresponding transition angle for every

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18

Wong, Ten It, Hao Wang, Fuke Wang, et al. "Empirical Formulae in Correlating Droplet Shape and Contact Angle." Australian Journal of Chemistry 69, no. 4 (2016): 431. http://dx.doi.org/10.1071/ch15730.

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In contact angle measurements, direct identification of the contact angles from images taken from a goniometer suffers from errors caused by optical scatterings. Contact angles can be more accurately identified by the height and width of the droplet. Spherical dome is a simple model used to correlate the contact angles to the droplet shape; however, it features intrinsic errors caused by gravity-induced shape deformation. This paper demonstrates a simple method of obtaining an empirical formula, determined from experiments, to correct the gravity-induced error in the spherical dome model for c

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19

Semprebon, Ciro, Glen McHale, and Halim Kusumaatmaja. "Apparent contact angle and contact angle hysteresis on liquid infused surfaces." Soft Matter 13, no. 1 (2017): 101–10. http://dx.doi.org/10.1039/c6sm00920d.

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20

Masnok, Kriengsak, and Nobuo Watanabe. "Relationship of Catheter Contact Angle and Contact Force with Contact Area on the Surface of Heart Muscle Tissue in Cardiac Catheter Ablation." Cardiovascular Engineering and Technology 12, no. 4 (2021): 407–17. http://dx.doi.org/10.1007/s13239-021-00529-8.

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Abstract Purpose The aims of this study were to develop an experimental procedure for setting the catheter angle with respect to the surface of the heart muscle and the catheter contact force and to investigate the catheter contact area on the heart muscle as a function of catheter contact angle and force. Methods Visualization tests were performed for 5 contact angles (0°, 30°, 45°, 60°, and 90°) and 8 contact forces (2, 4, 6, 10, 15, 20, 30, and 40 gf). Each experiment was repeated 6 times with 2 different commercially available catheter tips. Results The morphology of the contact area was c

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21

Pepin, Xavier, Sylvène Blanchon, and Guy Couarraze. "Powder dynamic contact angle measurements: Young contact angles and effectively wet perimeters." Powder Technology 99, no. 3 (1998): 264–71. http://dx.doi.org/10.1016/s0032-5910(98)00123-5.

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22

Lam, C. N. C., R. H. Y. Ko, L. M. Y. Yu, et al. "Dynamic Cycling Contact Angle Measurements: Study of Advancing and Receding Contact Angles." Journal of Colloid and Interface Science 243, no. 1 (2001): 208–18. http://dx.doi.org/10.1006/jcis.2001.7840.

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23

Guo, TieNeng, Xu Hua, ZhiJie Yan, and Chunsheng Bai. "Research on the elastic–plastic external contact mechanical properties of cylinder." Science Progress 103, no. 2 (2020): 003685042092781. http://dx.doi.org/10.1177/0036850420927817.

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Based on Hertz contact theory, an elastic-plastic contact mechanics model of outer cylinder under different contact angles of axis is proposed. The relationship among contact angle, load and contact deformation, contact stiffness and contact area is established. The finite element method is used to simulate the elastic-plastic contact process of the cylinder. The influence of the load and radius of the cylinder model on the contact deformation and the contact stiffness is compared and analyzed under different contact angles. The error of the analysis results of the finite element and the mecha

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24

Zhao, Zhangfan, and Xiang Shi. "Analysis on Contact Pressure for the Seal Structure of Repair Clamp with Wedge Contact Seals." Journal of Physics: Conference Series 2920, no. 1 (2024): 012024. https://doi.org/10.1088/1742-6596/2920/1/012024.

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Abstract Seal pressure is the key performance of repair clamp for subsea pipeline, which is generally designed by analyzing the contact pressure on each sealing surface of the seal structure. Research has shown that the weakest part of the clamp seal is the position where radial seal ring contacts axial seal strip. Usually for clamp seal structure the contact between radial seal ring and axial seal strip is tangent between a cylindrical surface and a plane. In order to improve the contact pressure of the position, a seal structure with wedge contact between seals that is tangent between a coni

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25

Erbil, H. Yildirim. "Dependency of Contact Angles on Three-Phase Contact Line: A Review." Colloids and Interfaces 5, no. 1 (2021): 8. http://dx.doi.org/10.3390/colloids5010008.

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The wetted area of a sessile droplet on a practical substrate is limited by the three-phase contact line and characterized by contact angle, contact radius and drop height. Although, contact angles of droplets have been studied for more than two hundred years, there are still some unanswered questions. In the last two decades, it was experimentally proven that the advancing and receding contact angles, and the contact angle hysteresis of rough and chemically heterogeneous surfaces, are determined by interactions of the liquid and the solid at the three-phase contact line alone, and the interfa

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26

Li, Yufeng, Junyan Liu, Jialong Dong, Yufeng Du, Jinchun Han, and Yuanyuan Niu. "Theoretical Analysis of Contact Angle and Contact Angle Hysteresis of Wenzel Drops on Superhydrophobic Surfaces." Nanomaterials 14, no. 23 (2024): 1978. https://doi.org/10.3390/nano14231978.

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Although understanding the wetting behavior of solid surfaces is crucial for numerous engineering applications, the mechanisms driving the motion of Wenzel drops on rough surfaces remain incompletely clarified. In this study, the contact angle and contact angle hysteresis of Wenzel drops on superhydrophobic surfaces are investigated from a thermodynamic perspective. The free energy of the system is theoretically analyzed, thereby determining the equilibrium contact angle. Based on the sessile drop method, the relationship between the free energy barrier and the drop volume is calculated quanti

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27

Huang, X. B., X. X.W., J. J. Song, C. G. Bai, R. D. Zhang, and M. J. Zhou. "Contact angle of water on iron ore fines: Measurement and analysis." Journal of Mining and Metallurgy, Section B: Metallurgy 51, no. 1 (2015): 33–40. http://dx.doi.org/10.2298/jmmb140903010h.

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The relative contact angle (?RCA) for seven iron ore fines was measured by using Washburn Osmotic Pressure method under laboratory conditions. By choosing cyclohexane as the reference that can perfectly wet iron ore particles, the relative contact angles were measured and varied from 57? to 73?. With the volume % of goethite (?G) as the variable, a new model for relative contact angle was developed. The expected relative contact angle for pure goethite is about 56?, while that for goethite free samples is about 77?. Physical properties, such as surface morphology (SMI) and pore volume (Vpore)

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28

ZORN, Justyna, and Michał WASILCZUK. "THE EFFECT OF THE EXPOSURE-IN-OIL ON THE CONTACT ANGLE OF THE POLYMERS FORMING SLIDING LAYERS IN HYDRODYNAMIC BEARINGS." Tribologia 269, no. 5 (2016): 219–27. http://dx.doi.org/10.5604/01.3001.0010.6702.

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Polymers used as the sliding layers of hydrodynamic thrust bearings are typically thermoplastics characterized by relatively high values of contact angles when compared with metals. Metals, including Babbitt, or other bearing alloys, are characterized by low values of the contact angles. The lower the angle, the better the surface is wetted. Plastics used in tribological pairs to ensure a lower coefficient of friction, that is, for example, polytetrafluoroethylene (PTFE) or its composites, have several times higher contact angles compared to the bearing alloys. The research described below sho

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29

Gao, Lichao, and Thomas J. McCarthy. "Contact Angle Hysteresis Explained." Langmuir 22, no. 14 (2006): 6234–37. http://dx.doi.org/10.1021/la060254j.

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Restagno, Frédéric, Christophe Poulard, Céline Cohen, Laurianne Vagharchakian, and Liliane Léger. "Contact Angle and Contact Angle Hysteresis Measurements Using the Capillary Bridge Technique." Langmuir 25, no. 18 (2009): 11188–96. http://dx.doi.org/10.1021/la901616x.

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Shupe, Todd F., Chung Y. Hse, and Wan H. Wang. "An Investigation of Selected Factors that Influence Hardwood Wettability." Holzforschung 55, no. 5 (2001): 541–48. http://dx.doi.org/10.1515/hf.2001.087.

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Summary Wettability of sanded and non-sanded transverse and tangential sections of 22 southern hardwoods species was judged by measurement of contact angles using phenol formaldehyde resins. As expected, contact angle values on transverse sections were higher than those on tangential sections for both sanded and non-sanded surfaces. On sanded surfaces, hackberry had the highest mean contact angle (64.7°), and black oak had the lowest mean contact angle (50.1°). On non-sanded surfaces, winged elm had the highest mean contact angle (59.1°), and sweetgum had the lowest mean contact angle (45.9°).

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32

Saketi, Pooya, Juha Hirvonen, Yuli Lai, et al. "Automated Drop-on-Fiber contact angle measurement using a microrobotic platform." Nordic Pulp & Paper Research Journal 29, no. 2 (2014): 225–31. http://dx.doi.org/10.3183/npprj-2014-29-02-p225-231.

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Abstract Measuring contact angles on single fibers enables the separation of structural factors from surface chemistry factors. Current Drop-on-Fiber (DOF) contact angle measurement methods for natural fibers generally, and for pulp/paper fibers specifically, present a number of challenges. These are manipulation and mounting of the microscale fibers, straightening natural fibers to produce repeatable axisymmetric droplet conformation, measuring the droplet volume excluding the fiber volume and also human errors due to manually performed tasks. This paper presents a novel method to measure con

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33

Terpiłowski, Konrad, Lucyna Hołysz, Diana Rymuszka, and Robert Banach. "Comparison of contact angle measurement methods of liquids on metal alloys." Annales Universitatis Mariae Curie-Sklodowska, sectio AA – Chemia 71, no. 1 (2016): 89. http://dx.doi.org/10.17951/aa.2016.71.1.89.

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<p>The paper presents the studies of metal wettability using two methods: the sessile droplet and immersion ones. Based on the measured contact angles, there was calculated apparent surface free energy from the acidic–basic approach and the contact angle hysteresis. The advancing contact angles measured using the immersion method exhibit a little higher values than those measured by the sessile droplet method. The application of the immersion method leads to obtaining higher contact angle hysteresis. Both methods give different values of contact angles but they can be applied independent

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34

B, Guo. "Effect of Fluid Contact Angle of Oil-wet Ceramic Fracture Proppant on the Water Flow from Sandstones to Proppant Packs." Petroleum & Petrochemical Engineering Journal 6, no. 1 (2022): 1–9. http://dx.doi.org/10.23880/ppej-16000295.

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Ceramic fracture proppants are extensively used for enhancing oil and gas well productivity in low-permeability reservoirs. Previous work reported attracting-oil-repelling-water (AORW) property of oil-wet proppants at the faces of fractures. Because of lack of method for measuring contact angle of proppant packs, the terms water-wet proppant and oil-wet proppant were defined on the basis of observations of liquid droplets on the surfaces of proppant packs without quantitative measurement. An innovative method was developed in this study to determine the contact angles of fracture proppant pack

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Wang, Ming, and Boyun Guo. "Effect of Fluid Contact Angle of Oil-Wet Fracture Proppant on the Competing Water/Oil Flow in Sandstone-Proppant Systems." Sustainability 14, no. 7 (2022): 3766. http://dx.doi.org/10.3390/su14073766.

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Ceramic fracture proppants are extensively used for enhancing the recovery of fossil energy and geothermal energy. Previous work has reported the attracting-oil-repelling-water (AORW) property of oil-wet proppants at the faces of fractures. Because of the lack of a method for measuring the contact angle of proppant packs, the terms water-wet proppant and oil-wet proppant were defined based on observations of liquid droplets on the surfaces of proppant packs without quantitative measurement. An innovative method was developed in this study to determine the contact angles of fracture proppant pa

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Uilk, Janelle M., Ann E. Mera, Robert B. Fox, and Kenneth J. Wynne. "Hydrosilation-Cured Poly(dimethylsiloxane) Networks: Intrinsic Contact Angles via Dynamic Contact Angle Analysis." Macromolecules 36, no. 10 (2003): 3689–94. http://dx.doi.org/10.1021/ma021154x.

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Chen, H., T. Tang, and A. Amirfazli. "Fabrication of polymeric surfaces with similar contact angles but dissimilar contact angle hysteresis." Colloids and Surfaces A: Physicochemical and Engineering Aspects 408 (August 2012): 17–21. http://dx.doi.org/10.1016/j.colsurfa.2012.04.015.

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Tyowua, Andrew Terhemen, and Stephen Gbaoron Yiase. "Contact Angle Hysteresis – Advantages and Disadvantages: A Critical Review." Reviews of Adhesion and Adhesives 8, no. 1 (2020): 47–67. http://dx.doi.org/10.7569/raa.2020.097302.

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The existence of contact angle hysteresis – the difference between the values of the advancing and receding contact angles – is evident in nature (e.g. sticking of rain drops to car windscreens and window panes) and many industrial processes (e.g. surface coating, spraying, and dyeing of fabrics). This phenomenon is often viewed as a nuisance, but it is advantageous in many processes including dip and spin coating, spraying, and painting. With the early theoretical framework of Thomas Young, Robert Wenzel, and A. B. D. Cassie and S. Baxter, describing the wettability of solid surfaces and by e

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Khlayboonme, S. Tipawan, and Warawoot Thowladda. "Effects of Air Exposure Time and Annealing Temperature on Superhydrophobic Surface of Titanium Dioxide Films." Key Engineering Materials 751 (August 2017): 137–42. http://dx.doi.org/10.4028/www.scientific.net/kem.751.137.

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TiO2 thin films coated on glass substrates for self-cleaning applications were prepared by sol-gel dip-coating technique. The influence of annealing temperature and air exposure time on wettability was investigated by a water contact-angle measurement. Thermal annealing at temperatures of 100, 200 and 300 °C in air were conducted to the films. Surface morphology of the films was observed by FE-SEM. Elemental distribution and optical properties were examined by EDX mapping and UV-Vis transmission spectroscopy, respectively. Atomic bonding was confirmed by FTIR. The contact angle reached a maxim

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Chen, Shuai, Jiadao Wang, and Darong Chen. "Wetting Behaviors of an Underwater Oil Droplet on Structured Surfaces." MRS Advances 1, no. 10 (2016): 667–73. http://dx.doi.org/10.1557/adv.2016.168.

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ABSTRACTIn this study, the wetting behaviors of an underwater oil droplet on structured surfaces were investigated using molecular dynamics simulations and experiments. The wetting states and contact angles of the underwater oil droplet on different hydrophobic surfaces were simulated. The simulation results showed that there were three kinds of equilibrium states on the pillar surfaces: the Wenzel, cross, and Cassie states. Moreover, the equilibrium state of the underwater oil droplet transformed from a Wenzel to Cassie state when the water contact angle decreased. The contact angle of the un

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Liao, Neng Tung, and Jen Fin Lin. "A New Method for the Analysis of Deformation and Load in a Ball Bearing With Variable Contact Angle." Journal of Mechanical Design 123, no. 2 (1999): 304–12. http://dx.doi.org/10.1115/1.1357163.

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The contact angle of a ball in a ball bearing is conventionally assumed to be a constant value in the mechanism analysis; in reality, this is not true. This assumption is made for the purpose of simplifying calculations, but the real elastic deformation produced at the position of each ball due to the acting force varying with the contact angle is unable to be considered. This study tries to establish a simple, three-dimensional expression for the elastic deformation at different position angles in terms of the geometry of the contact surface at the inner and outer races. Simply using the Newt

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42

Mao-Gang, Gong, Liu Yuan-Yue, and Xu Xiao-Liang. "A new model for the formation of contact angle and contact angle hysteresis." Chinese Physics B 19, no. 10 (2010): 106801. http://dx.doi.org/10.1088/1674-1056/19/10/106801.

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43

Koch, Brendan M. L., A. Amirfazli, and Janet A. W. Elliott. "Modeling and Measurement of Contact Angle Hysteresis on Textured High-Contact-Angle Surfaces." Journal of Physical Chemistry C 118, no. 32 (2014): 18554–63. http://dx.doi.org/10.1021/jp504891u.

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44

HUANG, F. L., Q. F. WEI, W. Z. XU, and Q. LI. "PREPARATION AND CHARACTERIZATIONS OF PTFE GRADIENT NANOSTRUCTURE ON SILK FABRIC." Surface Review and Letters 14, no. 04 (2007): 547–51. http://dx.doi.org/10.1142/s0218625x07009827.

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Abstract (sommario):

Superhydrophobic materials have been extensively studied because of their wonderful array of properties and applications. In this study, normal and superhydrophobic surface of silk fabric have been prepared via deposition of different shapes of PTFE nanostructure using magnetron sputter coating. The effects of PTFE sputter coating on surface morphology and surface chemical properties were characterized using atomic force microscopy (AFM) and ATR-FTIR (attenuated total reflection-Fourier transform infrared spectroscopy). The wettability of the fabric was characterized through measuring the surf

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45

Hennig, A., K. J. Eichhorn, U. Staudinger, et al. "Contact Angle Hysteresis: Study by Dynamic Cycling Contact Angle Measurements and Variable Angle Spectroscopic Ellipsometry on Polyimide." Langmuir 20, no. 16 (2004): 6685–91. http://dx.doi.org/10.1021/la036411l.

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46

Kwok, D. Y., T. Gietzelt, K. Grundke, H. J. Jacobasch, and A. W. Neumann. "Contact Angle Measurements and Contact Angle Interpretation. 1. Contact Angle Measurements by Axisymmetric Drop Shape Analysis and a Goniometer Sessile Drop Technique." Langmuir 13, no. 10 (1997): 2880–94. http://dx.doi.org/10.1021/la9608021.

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47

Li, Ri, and Yanguang Shan. "Contact Angle and Local Wetting at Contact Line." Langmuir 28, no. 44 (2012): 15624–28. http://dx.doi.org/10.1021/la3036456.

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48

Rusanov, Anatoly I. "Effect of contact line roughness on contact angle." Mendeleev Communications 6, no. 1 (1996): 30–31. http://dx.doi.org/10.1070/mc1996v006n01abeh000565.

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49

Collet, P., J. De Coninck, F. Dunlop, and A. Regnard. "Dynamics of the Contact Line: Contact Angle Hysteresis." Physical Review Letters 79, no. 19 (1997): 3704–7. http://dx.doi.org/10.1103/physrevlett.79.3704.

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50

Sun, Ming Xia, Ai Ping Liang, Gregory S. Watson, Jolanta A. Watson, Yong Mei Zheng, and Lei Jiang. "Microstructure and Wettability on the Elytral Surface of Aquatic Beetle." Applied Mechanics and Materials 461 (November 2013): 731–40. http://dx.doi.org/10.4028/www.scientific.net/amm.461.731.

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Abstract (sommario):

The microstructures on elytral surface of aquatic beetles belonging to Hydrophilidae and Dytiscidae were observed under an environment scanning microscope, and the wettabilities were determined with an optical contact angle meter. The results show the elytral surfaces are relatively smooth compared to the structures of other insects such as the butterfly wing scales or cicada wing protrusions. They exhibit a polygonal structuring with grooves and pores being the main constituent units. The contact angles (CAs) range from 47.1oto 82.1o. The advancing and receding angles were measured by injecti

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