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 Mejora eficiente para la estimación de la energía libre superficial del ligante asfáltico mediante herramientas de Machine Learning

2021 ◽  
Vol 20 (3) ◽  
Author(s):  
David Sierra-Porta
Keyword(s):  
Machine Learning ◽  
Free Energy ◽  
Surface Free Energy ◽  
Absolute Error ◽  
Asphalt Mixtures ◽  
Asphalt Binders ◽  
Recovery Processes ◽  
Strong Adhesion ◽  
The Mean ◽  
Prediction Techniques

The Surface Free Energy (SFE) of a material is defined as the energy needed to create a new surface unit under vacuum conditions. This property is directly related to the resistance to fracture and recovery of material and the ability to create strong adhesion with other materials. This value can be used as a complementary parameter for the selection and optimal combination of materials for asphalt mixtures, as well as in the micromechanical modelingof fracture and recovery processes of said mixtures. This document describes the results of the implementation of the use of machine learning and Random Forest prediction techniques for the estimation of surface free energy based on data from previous studies. The experimental samples were twenty-three asphalt binders used in a Strategic Highway Research Program (SHRP). A decrease of 54% and 82% in the mean absolute error (MAE) and the mean square error (MSE), respectively was found for the new model built. While the model fits better with a 12% improvement, according to the adjusted determination coefficient, the accuracy and the score of the model also increases notably in 2% and 55%, respectively.

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.

Using surface free energy to evaluate the fracture performance of asphalt binders

2020 ◽  
Vol 240 ◽  
pp. 118004 ◽  
Author(s):  
Yu Chen ◽  
Shanzhen Dong ◽  
Hainian Wang ◽  
Runjie Gao ◽  
Zhanping You
Keyword(s):  
Free Energy ◽  
Surface Free Energy ◽  
Asphalt Binders ◽  
Fracture Performance

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
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