Determination of the Contact Angles of Kaolin Intercalates of Oleochemicals Derived from Rubber Seed (HeveaBrasiliensis) and Tea Seed (CameliaSinensis) Oils by the Capillary Rise Method

The contact angles of pure Ni, Ni/7wt%Ni3Al, Ni/5wt%Ni3Al/ 5wt%Cr and Ni/10wt%Cr anodes for the MCFC were measured by means of the capillary rise method in 62mol%Li2CO3+ 38mol%K2CO3 and 52mol%Li2CO3+ 48mol% Na2CO3 electrolyte and at different atmosphere. Also surface fractal dimension (Ds), which could characterize pore structure of the anodes, was calculated from experimental data obtained by mercury porosimetry and nitrogen adsorption method. The surface fractal dimensions of the anode were in range from 2.75 to 2.81, because porosities of the anodes for MCFC were controlled regularly to about 62% during sintering. It was investigated from wetting-in experiment by capillary-rise method that the contact angles between the anodes and the carbonate electrolytes were relatively decreased at CO2 atmosphere rather than air atmosphere and the angles were also decreased in the 62mol%Li2CO3+38mol%K2CO3 electrolyte rather than that measured and in the 52mol%Li2CO3+48mol% Na2CO3 electrolyte.

Download Full-text

Analyzing capillary-rise method settings for contact-angle determination of granular media§

Journal of Plant Nutrition and Soil Science ◽

10.1002/jpln.201100431 ◽

2012 ◽

Vol 176 (1) ◽

pp. 19-16 ◽

Cited By ~ 7

Author(s):

Juan Carlos Ramírez-Flores ◽

Jörg Bachmann

Keyword(s):

Contact Angle ◽

Granular Media ◽

Capillary Rise ◽

Capillary Rise Method

Download Full-text

Determination of line tension from the drop size dependence of contact angles

Colloids and Surfaces ◽

10.1016/0166-6622(90)80288-f ◽

1990 ◽

Vol 43 (2) ◽

pp. 195-206 ◽

Cited By ~ 97

Author(s):

D. Li ◽

A.W. Neumann

Keyword(s):

Drop Size ◽

Size Dependence ◽

Line Tension ◽

Contact Angles ◽

Drop Size Dependence

Download Full-text

Application of artificial neural network (ANN) in order to predict the surface free energy of powders using the capillary rise method

Colloids and Surfaces A Physicochemical and Engineering Aspects ◽

10.1016/j.colsurfa.2007.02.041 ◽

2007 ◽

Vol 302 (1-3) ◽

pp. 280-285 ◽

Cited By ~ 14

Author(s):

Samad Ahadian ◽

Siamak Moradian ◽

Farhad Sharif ◽

Mohammad Amani Tehran ◽

Mohsen Mohseni

Keyword(s):

Neural Network ◽

Artificial Neural Network ◽

Free Energy ◽

Surface Free Energy ◽

Capillary Rise ◽

Capillary Rise Method ◽

Artificial Neural ◽

Artificial Neural Network Ann

Download Full-text

Influence of Layer Charge and Modifier on Wettability of Organo-Montmorillonite

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.1030-1032.90 ◽

2014 ◽

Vol 1030-1032 ◽

pp. 90-94

Author(s):

Zhong Xin Luo ◽

Mang Lai Gao ◽

Ya Ge Ye

Keyword(s):

Synergistic Effect ◽

Chain Length ◽

Quaternary Ammonium ◽

Capillary Rise ◽

Quaternary Ammonium Salts ◽

Deionized Water ◽

Ammonium Salts ◽

Layer Charge ◽

Oil Reservoir ◽

Capillary Rise Method

To study the influence of layer charge and modifier on wettability plays an important role on the diagnosis of oil reservoir. In this paper, two quaternary ammonium salts (QASs) with different chain-length were used singularly or in compound form to modify the reduced-charge montmorillonites (RCMs). The wettability alterations of the organo-RCMs for deionized water and cyclohexane were studied based on capillary rise method. The results showed that RCMs singularly modified by QASs show different wettability characteristics. Moreover, there is a synergistic effect on the wettability when the RCMs are compound modified by two QASs and the organo-RCMs turn to more hydrophilic. The results of this work also indicated that it is possible to regulate the wettability of the RCMs by choosing different recipe of QASs, which is helpful to provide theoretical guidance for the oil production.

Download Full-text