Application of the sessile drop method to the determination of the surface energy and density of liquids wetting the backing material

1965 ◽  
Vol 4 (6) ◽  
pp. 463-466 ◽  
Author(s):  
V. I. Nizhenko ◽  
V. N. Eremenko ◽  
L. I. Sklyarenko
Keyword(s):  
Surface Energy ◽  
Sessile Drop ◽  
Sessile Drop Method ◽  
Drop Method ◽  
Backing Material

scholarly journals Hydrophobilization of Furan-Containing Polyurethanes via Diels–Alder Reaction with Fatty Maleimides

Polymers ◽  
2019 ◽  
Vol 11 (8) ◽  
pp. 1274
Author(s):  
Schmidt ◽  
Eschig
Keyword(s):  
Surface Energy ◽  
Surface Properties ◽  
Sessile Drop ◽  
Covalent Bonding ◽  
Alder Reaction ◽  
Sessile Drop Method ◽  
Diels Alder ◽  
Fatty Amine ◽  
Diels Alder Reaction

We describe new hydrophobic functionalized linear polyurethane resins by combining N-alkyl maleimides via the Diels–Alder reaction with linear furan-modified polyurethanes. This procedure provides the opportunity for the post-polymerization-functionalizing of polyurethanes. Access to furan-bearing polyurethanes is achieved via the reaction of a furan-containing diol, polyethylenglycol (PEG), and different diisocyanates. The furan-containing diol is obtained from the reaction of furfurylamine and two equivalents of hydroxyalkyl acrylate. The resulting furan-bearing polyurethanes are reacted with fatty amine-based N-alkyl maleimides. The maleimide and furan functionalities undergo a Diels–Alder reaction, which allows for the covalent bonding of the hydrophobic side chains to the polyurethane backbone. The covalent bonding of the hydrophobic maleimides to the polyurethane backbone is proven by means of NMR. The influence of the functionalization on the surface properties of the resulting polyurethane films is analyzed via the determination of surface energy via the sessile drop method.

A Sessile Drop Method for Facile and Robust Spheroid Cultures

2021 ◽  
pp. 2100972
Author(s):  
Bangyong Sun ◽  
Yi Zhao ◽  
Qiang Zhao ◽  
Gang Li
Keyword(s):  
Sessile Drop ◽  
Sessile Drop Method ◽  
Drop Method

Use of the Sessile Drop Method to Understand the Behaviour of Self Healing Ceramic Matrix Composite

2008 ◽  
Vol 595-598 ◽  
pp. 1173-1180
Author(s):  
Sébastien Wery ◽  
Francis Teyssandier
Keyword(s):  
Glass Ceramic ◽  
Sessile Drop ◽  
Ceramic Matrix Composite ◽  
Ceramic Matrix ◽  
Sessile Drop Method ◽  
Self Healing ◽  
Infiltration Process ◽  
Drop Method ◽  
Sic Composites ◽  
Sealing Glass

Surface and interfacial properties of borosilicate glass/ceramic systems have been investigated using the sessile drop method. The purpose is to compare and understand the reactivity of the sealing glass in C / SiC and SiC / SiC composites. A hot wall reactor has been designed to measure the variation of the contact angle and the spreading kinetic according to the temperature (500 to 1100°C) and the atmosphere (Ar, Ar + O2 and Ar + H2O). Chemical and morphological analyses underline (i) the strong reactivity between the liquid and the ceramic, (ii) the influence of the infiltration process and (iii) the strong influence of the oxidizing agent on the wetting behaviour of the glass/ceramic systems.

Wettability Study of Red Ceramic and Glaze from Dimension Stone Waste

2017 ◽  
Vol 899 ◽  
pp. 289-294
Author(s):  
Maria Vitória Machado Rosetti ◽  
R.A. Carvalho ◽  
S.P. Taguchi ◽  
L.A. Borges
Keyword(s):  
Contact Angle ◽  
Melting Point ◽  
Optical Microscopy ◽  
Sessile Drop ◽  
Longitudinal Section ◽  
Sessile Drop Method ◽  
Ceramic Plate ◽  
Dimension Stone ◽  
Drop Method ◽  
Stone Industry

The dimension stone industry produces large amount of residue. An alternative to reduce this environmental liability is to apply as glaze in coating ceramic. This research is about the wettability between glaze and red ceramic, applying the sessile drop method. The waste and additives were mixed, pressed, and put over red ceramic plate previously sintered. The system was heated until the melting point of the glaze and the contact angle decreasing was measured in function of the temperature, and in a function of the time at 750 °C and 800 °C. The minimum contact angle value was near 6 ° at 994 °C in the testing changing the temperature, and presents 19 ° and 10 °, respectively, at 750 °C and 800 °C, when the time was varied. The longitudinal section of the samples was analyzed using optical microscopy, showing physical wettability in all testing. This glaze presents good wettability on red ceramic with potential as coating ceramic.

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