Study of the free surface energy of epoxy composites using an automated measurement system
Journal Title: Восточно-Европейский журнал передовых технологий - Year 2018, Vol 1, Issue 12
Abstract
<p>Results of development of the automated measurement system (AMS) for determining contact wetting angles and calculations of components of free surface energy (FSE) of solid surfaces by the Van Oss-Chaudhury-Good method were presented. It was shown that AMS allows for calculations based on experimental measurement of geometrical parameters of a lying drop on the surface and energy characteristics of test fluids. It was found that the measured contact wetting angles and calculated values of FSE components of surfaces of epoxy polymer composites, steel and glass are adequate and reliable.</p>Based on the conducted measurements and calculations, relationship between FSE, the structure and properties of epoxy polymer composites, filled with rutile, was established. In the course of research that was conducted using AMS, it was found that at an increase of the content of rutile, total FSE (γ<sub>s</sub>), dispersive (γ<sup>d</sup>) and acidic-basic (γ<sup>ab</sup>) components of composites increase. Dependences γ<sub>s</sub> and γ<sup>d</sup> on the filler’s content are extreme in character, and γ<sup>ab</sup> increases and does not change at a subsequent increase in the amount of rutile. The influence of rutile is represented most vividly by dependences of the acidic (γ<sup>a</sup>) and basic (γ<sup>b</sup>) components, into which the polar (acidic-basic) FSE component γ<sup>ab</sup> is disintegrated. It was found that structural transformations are associated with the acidic-basic mechanism of intermolecular and inter-phase interactions in epoxy compositions
Authors and Affiliations
Yuliya Danchenko, Vladimir Andronov, Mykhailo Teslenko, Viacheslav Permiakov, Evgeniy Rybka, Ruslan Meleshchenko, Anatoliy Kosse
Keywords
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- EP ID EP527830
- DOI 10.15587/1729-4061.2018.120998
- Views 72
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