Static contact angle goniometers

Static method, using a Kriiss G-1 optical microscope equipped with a goniometer (Fig. 2b) [10]. Approximately 100 mg of the powder is compressed into a pellet at a pressure of 1000 MPa. Subsequently a mercury droplet of 2-6 pi is placed on the pellet and a goniometer in the ocular of the microscope is then used to visually determine the specific contact angle (so-called static contact angle). 

Direct measurement of static contact angle by video camera or goniometer... 

Contact Angle Measurements. Static water contact angle ( s) measurements were performed on a Rame-Hart contact-angle goniometer on freshly prepared surfaces. A drop of 6—8 L was produced and then gently placed on the surface. For superhydrophobic... 

In order to evaluate the surface free energy of the organosilane monolayers, static contact angle measurement was carried out The contact angles of die water and the methylene iodide droplets on the monolayer surface were measured with a contact angle goniometer CA-D (Kyowakaimenkagaku, Co., Ltd.) at 293 K. 

Different methods have been developed to determine the contact angle of mercury on a solid material [8]. The static angle method uses an optical microscope combined with a goniometer to quantify the non-wetting behavior of a... 

Static water contact angles were determined by the sessile-drop method employing a Rame-Hart goniometer (Rame-Hart Instrument Co., Model-100, Netcong, NJ) at all stages of the surface-modification process, i.e., after cleaning of the Si02 substrates, after vapor deposition of the photoiniferter, and after photopolymerization of the PMAA brushes. 

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