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Wyszukujesz frazę "contact angle" wg kryterium: Temat


Wyświetlanie 1-3 z 3
Tytuł:
Determining the value of surface free energy on the basis of the contact angle
Autorzy:
Kłonica, M.
Kuczmaszewski, J.
Powiązania:
https://bibliotekanauki.pl/articles/102227.pdf
Data publikacji:
2017
Wydawca:
Stowarzyszenie Inżynierów i Techników Mechaników Polskich
Tematy:
energy state
surface layer
contact angle
ozonization
Opis:
This paper presents the results of tests concerning the value of surface free energy on the basis of measurements of contact angle with measure liquids: distilled water and diiodomethane. The surface of steel-316L samples was modified in an ozone atmosphere, and the concentration of ozone and the conditioning time of the samples in the reaction chamber were changed. The results of tests concerning the measurements of the value of surface free energy were subject to analysis. Also analysed were the components of SFE: the polar and dispersive components. The obtained test results were analysed in statistical terms. The paper ends with conclusions.
Źródło:
Advances in Science and Technology. Research Journal; 2017, 11, 1; 66-74
2299-8624
Pojawia się w:
Advances in Science and Technology. Research Journal
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Modification of Concrete Surface with Higher Fatty Acids
Autorzy:
Barnat-Hunek, Danuta
Andrzejuk, Wojciech
Szafraniec, Małgorzata
Kachel, Magdalena
Hunek, Robert
Powiązania:
https://bibliotekanauki.pl/articles/2201909.pdf
Data publikacji:
2023
Wydawca:
Stowarzyszenie Inżynierów i Techników Mechaników Polskich
Tematy:
contact angle
higher fatty acid
hydrophobic agent
hydrophobization
water tightness
vapor permeability
Opis:
The research presented in the paper concerns the production of innovative hydrophobizing agents and demonstration their effectiveness on a concrete surface. The starting materials are based on natural oils, water‒soluble silanes and siloxanes, and/or tap water. Aqueous preparations are characterized by properties which reduce the impact of volatile organic compounds (VOCs) on the environment, as they consist only of biodegradable components. Studies have shown that the higher fatty acids from vegetable oils and derived from the glycerin phase can be used as a component of concrete hydrophobizing agents, meeting the standard requirements for such agents. Analysis of the use of vegetable oil as a base compound for the production of industrial agents provides at least 95% confidence in its biodegradability. The reference concrete after the frost resistance test showed a weight loss of 1.8%. In the case of hydrophobization, the weight loss was 33.3 to 72% less than the reference samples. In the case of concrete hydrophobized with the glycerin agents, the salt crystallization occurred inside the structure of the material without causing any damage, with the reference concrete showing a weight loss of 0.8%.
Źródło:
Advances in Science and Technology. Research Journal; 2023, 17, 2; 307--321
2299-8624
Pojawia się w:
Advances in Science and Technology. Research Journal
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The Effect of Active Diluent Addition on the Energy and Adhesive Properties of Epoxy Adhesive
Autorzy:
Krawczuk, Anna
Domińczuk, Jacek
Powiązania:
https://bibliotekanauki.pl/articles/103375.pdf
Data publikacji:
2018
Wydawca:
Stowarzyszenie Inżynierów i Techników Mechaników Polskich
Tematy:
contact angle
surface free energy
epoxy adhesives
adhesive joint
kąt zwilżania
wolna energia powierzchniowa
kleje epoksydowe
połączenie klejowe
Opis:
The paper reports values of surface free energy and its components of an epoxy adhesive modified by the addition of an active diluent. Wetting envelopes are determined and they serve as a basis for a wettability analysis and determining the possibility of maximizing the work of adhesion between the liquid and the solid. Static strength tests of adhesive joints made with the analysed adhesive compositions were also conducted. The results are used to determine the effect of active diluent addition on the energy and adhesive properties of the epoxy adhesive
Źródło:
Advances in Science and Technology. Research Journal; 2018, 12, 1; 19-25
2299-8624
Pojawia się w:
Advances in Science and Technology. Research Journal
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-3 z 3

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