Optimization of Ingredients for Two-Layer Epoxy Coating for Protection of Sea and River Vehicles

Букетов, А. В.; Yakushchenko, Serhii; Cherniavska, Tetyana; Zhytnyk, Danyl; Buketova, Natalia; Ivchenko, T. I.; Fesenko, I. P.; Negrutsa, Roman

doi:10.1007/978-3-030-54215-3_39

Cited by 1 publication

(3 citation statements)

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“…Additionally, two fillers in the complex (nanosilver and oxytetracycline) were used to improve the properties of the protective coatings, the optimal content of which was determined by the method of the mathematical planning of the experiment using the STATGRAPHICS ® Centurion XVI application package. Orthogonal central compositional planning was used to optimize the content of fillers of different nature to form the protective coating [50,51]. The content of the main and additional fillers was selected based on complex studies of the physical and mechanical properties of CM.…”

Section: Mathematical Planning Of the Experimentsmentioning

confidence: 99%

“…According to the experimental design scheme, nine experiments were performed (N = 9), each of which was repeated three times (p = 3) to rule out system errors (Table 2). In order to obtain an orthogonal planning matrix [50][51][52], the corrected level values, x , were entered and calculated using (1).…”

Section: Mathematical Planning Of the Experimentsmentioning

confidence: 99%

“…Consider the following dependencies that connect the normalized and natural values of the variables [51].…”

Section: Experiments Number (U)mentioning

confidence: 99%

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Ecotoxicity Study of New Composite Materials Based on Epoxy Matrix DER-331 Filled with Biocides Used for Industrial Applications

et al. 2022

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The impact of fillers in the epoxy oligomer on the test culture of the marine ecosystem was investigated. The content of additive—biocides—was selected based on the complex research using STAT-GRAPHICS® Centurion XVI. The ecotoxicity of composite surfaces was determined in model systems using methods which are standard in eco-microbiology. The microorganism was identified by studying morphological, cultural, biochemical, and antigenic properties. Studies of the structure and the microrelief of the surfaces of composite materials were conducted using scanning electron microscopy (SEM) and X-ray energy dispersive spectroscopy. Based on comprehensive research, it was established that the composition of oxytetracycline with content of q = 1.5 wt% and nanosilver with a content of q = 0.075 wt% per 100 wt% of the DER-331 oligomer and 10 parts by the mass of the TETA hardener ensures the formation of a porous nano-heterogeneous structure of the coating, which leads to the acceleration of the release of silver ions from the surface of the polymer. The rational content of the complex additives of biocides ensures adhesion to the cell wall of bacteria with subsequent penetration into it and subsequent change to the cell membrane, its death, and, therefore, the suppression of the fouling process of metal structures.

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Section: Mathematical Planning Of the Experimentsmentioning

confidence: 99%

Section: Mathematical Planning Of the Experimentsmentioning

confidence: 99%