contact angle
DISTRIBUTION PATTERN, SURFACE TENSION AND CONTACT ANGLE OF HERBICIDES ASSOCIATED TO ADJUVANTS ON SPRAYING AND CONTROL OF Ipomoea hederifolia UNDER RAINFALL INCIDENCE
... and contact angle assessments were performed using a OCA-15EC goniometer (DataPhysics, Germany), where the surface tension was determined using the pendant drop technique, and droplet spreading was assessed ...
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Parameterizing ice nucleation rates for cloud modeling using contact angle and activation energy derived from laboratory data
... general species types (i.e. bacteria, pollens or soot), and the distinct slope reflects the wetting parameter f that is unique for each species. Results from Eq. (19a) are not much different in terms of the degree of ...
47
J. Aerosp. Technol. Manag. vol.9 número4
... Previous studies have shown that dropwise condensation has about one order of magnitude greater heat transfer coefficient than filmwise condensation (Schmidt et al. 1930; Rose 2002). Hence, many investigations have ...
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Physical, Chemical and Morphological Characterization of Polyamide Fabrics Treated with Plasma Discharge
... static contact angle performed with distilled water ...obtained contact angle of ...static contact angle ...a contact angle that is still much lower than the ...
9
Mat. Res. vol.7 número4
... built following manufacturer’s instructions. After pH cycles, solutions were injected in a HPLC. The contact angle was obtained using a goniometer after and before the cycles. HPLC results showed material ...
4
Polímeros vol.22 número3
... Contact angle measurements: Samples of pre- and post-biotreatment films were placed on flat glass plates and a drop (20 µL) of distilled water was deposited on each ...the contact angle was ...
8
Polímeros vol.23 número3
... The contact angle for water drop decreases after UVC radiation, but not after gamma radiation, despite a significant increase in ...and contact angle of castor oil polyurethane are more ...
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Surface characteristics analysis of polypropylene treated by dielectric barrier discharge at atmospheric pressure
... The contact angle between a test liquid and the polymer surface was obtained by the sessile drop method on a standard Rame-Hart goniometer, model 300-F1 using the DROPImage ...
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Unravelling the potential of nitric acid as a surface modifier for improving the hemocompatibility of metallocene polyethylene for blood contacting devices
... C has an improved surface roughness resulting in improved biocompatibility. The roughness values obtained using AFM also evidenced the surface structuring after subjecting the sample to surface modification techniques to ...
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Polímeros vol.12 número4
... by contact angle measurements to determine the polarity of the ...The contact angle formed by drops of 2-propanol or acetone aqueous solution on the film produced from 2-propanol varied ...
5
Mat. Res.
... dosage lowers the contact angle and the time of water and dye solution adsorption. The introduction of polar groups, mainly oxygen and nitrogen from atmospheric air, is the main responsible for the improved ...
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Surface analysis of alumina ceramic exposed to shock waves produced by plasma expander
... Table 2 shows roughness, wettability and porous fraction values. In this table, it can be observed that there were significant changes especially in roughness and wettability promoted by the shock waves. Despite the ...
4
Mat. Res. vol.17 suppl.1
... the contact angle with the surface and morphological properties show an improvement in interfacial adhesion between the components of the composites (HDPE/EU/CA) when it is used the maleic anhydride as ...
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Laboratory measurements and model sensitivity studies of dust deposition ice nucleation
... of contact angle. For the deposition ice nucleation mode, the contact angle of an ice embryo on an IN represents a relationship between the surface energies defined at the water vapor – ice, ...
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bor 32 bor 2018vol320008
... To analyze the in situ degree of conversion, contact angle and microtensile bond strength, bovine permanent incisors were transversally sectioned to expose the dentin surface. SiC paper (600 grit) was used ...
7
Adhesion to a Lithium Disilicate Glass Ceramic Etched with Hydrofluoric Acid at Distinct Concentrations
... This study evaluated the effect of different hydrofluoric acid (HF) concentrations on the bond strength between a lithium disilicate-based glass ceramic and a resin cement. Eighty ceramic-blocks (12×7×2 mm) of IPS e.Max ...
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EDIBLE COATINGS BASED ON CHITOSAN-BEESWAX EMULSIONS
... the contact angle increases comparing with the Ch films, due to the increase in the surface ...the contact angle in relation to the films with 1% and 5% ...
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Open Capillary Problem and Mean Curvature Flow of Killing Graphs
... degree contact angle or Dirichlet boundary condition on cylindrical domains has been studied by Huisken [31] and there proves a long time existence and convergence to minimal surfaces ...arbitrary ...
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Characterization of PVDF/HAP composites for medical applications
... Biomaterials (composites and blends) play a major role in the health of modern society. This paper reports on the preparation and characterization of polyvinylidene fluoride (PVDF) and hydroxyapatite (HAP) composites, ...
6
PHYSICAL CHARACTERISTICS OF OILY SPRAYING LIQUIDS AND DROPLETS FORMED ON COFFEE LEAVES AND GLASS SURFACES
... tension, contact angle formed and the leaf area wetted by the droplet, were ...smaller contact angles of droplets on leaf surfaces and larger areas wetted by the ...
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