Gas-solid chromatography: method of measuring surface free energy characteristics of short fibers. 2. Through retention volumes measured near zero surface coverage

1982 ◽  
Vol 21 (4) ◽  
pp. 666-669 ◽  
Author(s):  
Carol Saint Flour ◽  
Eugene Papirer
Keyword(s):  
Free Energy ◽  
Surface Free Energy ◽  
Surface Coverage ◽  
Short Fibers ◽  
Chromatography Method ◽  
Energy Characteristics ◽  
Measuring Surface ◽  
Retention Volumes

Analysis of surface roughness and surface free energy characteristics of various orthodontic materials

2009 ◽  
Vol 136 (5) ◽  
pp. 668-674 ◽  
Author(s):  
Hyo-Beom Ahn ◽  
Sug-Joon Ahn ◽  
Shin-Jae Lee ◽  
Tae-Woo Kim ◽  
Dong-Seok Nahm
Keyword(s):  
Surface Roughness ◽  
Free Energy ◽  
Surface Free Energy ◽  
Energy Characteristics ◽  
Orthodontic Materials

Effect of Antistrip Additives on Surface Free Energy Characteristics of Asphalt Binders for Moisture-Induced Damage Potential

2007 ◽  
Vol 35 (1) ◽  
pp. 100290 ◽  
Author(s):  
DMR Mitchell ◽  
NM Wasiuddin ◽  
CM Fogle ◽  
MM Zaman ◽  
EA O'Rear
Keyword(s):  
Free Energy ◽  
Surface Free Energy ◽  
Asphalt Binders ◽  
Damage Potential ◽  
Energy Characteristics ◽  
Antistrip Additives

Surface free energy characteristics of polyfluorinated silane films

Langmuir ◽  
1992 ◽  
Vol 8 (4) ◽  
pp. 1195-1198 ◽  
Author(s):  
Elek Lindner ◽  
Ernest Arias
Keyword(s):  
Free Energy ◽  
Surface Free Energy ◽  
Energy Characteristics

scholarly journals Epoxyorganosilane Finishing Compositions for Fibrous Fillers of Thermosetting and Thermoplastic Binders

Polymers ◽  
2021 ◽  
Vol 14 (1) ◽  
pp. 59
Author(s):  
Alexey V. Shapagin ◽  
Natalia A. Gladkikh ◽  
Arkadiy A. Poteryaev ◽  
Valentina Yu. Stepanenko ◽  
Uliana V. Nikulova ◽  
...  
Keyword(s):  
Free Energy ◽  
Composite Materials ◽  
Surface Free Energy ◽  
Materials Science ◽  
Sessile Drop ◽  
Inert Atmosphere ◽  
Energy Characteristics ◽  
Urgent Task ◽  
Wide Range ◽  
Epoxy Systems

The development of universal finishing compositions for fibers of various natures is an urgent task for polymer composite materials science. The developed finishes can be used for the fiber reinforcement of polymer matrices with a wide range of surface free energy characteristics. Epoxy systems modified with diaminesilane in a wide concentration range were examined by optical interferometry, FTIR spectroscopy, DSC and the sessile drop technique. It was shown that the partial curing of epoxy resin by diaminesilane at room temperature under an inert atmosphere, followed by contact with air, leads to a significant increase of the surface free energy of the system. Varying the concentration of diaminesilane allows us to effectively regulate the surface free energy of the composition. This makes it possible to use fibers finished with epoxyaminosilane compositions in composite materials based on a various thermosetting and thermoplastic binders with a surface tension of up to 75 mJ/m2.

Influence of duration of phosphoric acid pre-etching on bond durability of universal adhesives and surface free-energy characteristics of enamel

2016 ◽  
Vol 124 (4) ◽  
pp. 377-386 ◽  
Author(s):  
Akimasa Tsujimoto ◽  
Wayne W. Barkmeier ◽  
Toshiki Takamizawa ◽  
Hidehiko Watanabe ◽  
William W. Johnson ◽  
...  
Keyword(s):  
Free Energy ◽  
Phosphoric Acid ◽  
Surface Free Energy ◽  
Energy Characteristics ◽  
Universal Adhesives ◽  
Bond Durability

Surface free energy characteristics of mixtures

1983 ◽  
Vol 17 (1) ◽  
pp. 39-46 ◽  
Author(s):  
H.A.H. Mohammad ◽  
J.T. Fell
Keyword(s):  
Free Energy ◽  
Surface Free Energy ◽  
Energy Characteristics

Surface adsorption at low coverage of n-alkanes on bleached kraft papers using gas chromatography

1987 ◽  
Vol 65 (8) ◽  
pp. 1935-1939 ◽  
Author(s):  
N. Gurnagul ◽  
D. G. Gray
Keyword(s):  
Gas Chromatography ◽  
Free Energy ◽  
Surface Coverage ◽  
Surface Adsorption ◽  
Standard Free Energy ◽  
Chromatographic Retention ◽  
Heats Of Adsorption ◽  
Retention Volumes ◽  
Low Coverage ◽  
Entropy Of Adsorption

The adsorption at low surface coverage of a series of n-alkanes on various bleached kraft paper surfaces was measured by gas chromatography. Differences in surface area of the paper samples were readily measured from the gas chromatographic retention volumes. The standard free energy, the enthalpy, and the entropy of adsorption varied linearly with the number of carbon atoms in the n-alkanes. The heats of adsorption were close to the heats of liquefaction, indicating the non-specific interactions of the hydrocarbons with the bleached kraft surfaces. The London component of the surface free energy was estimated from the gas chromatographic results to be 47.9 mN/m.

Assessment of Surface Free Energy Characteristics of Performance Graded Asphalt Binders

2005 ◽  
Author(s):  
N. M. Wasiuddin ◽  
H. J. Barraza ◽  
M. M. Zaman ◽  
E. A. O'Rear
Keyword(s):  
Free Energy ◽  
Surface Free Energy ◽  
Asphalt Binders ◽  
Energy Characteristics
Sign in / Sign up

Export Citation Format

Share Document