Development and Use of New Polymer Adhesives for the Restoration of Marine Equipment Units

Sapronov, Oleksandr; Maruschak, Pavlo; Sotsenko, Vitalii; Buketova, Natalia; Deus, Antonio Bertem Da Gloria De; Sapronova, Anna; Prentkovskis, Olegas

doi:10.3390/jmse8070527

Cited by 14 publications

(7 citation statements)

References 22 publications

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“…When PEPA hardener was introduced into the epoxy oligomer in the amount q = 10.00 pts wt, the torque T t [%] increased monotonously over 49 min, after which it increased sharply, forming a characteristic kink on the curve. This indicates the beginning of the active formation of chemical bonds between macromolecular chains and their branches, which facilitates the formation of a threedimensional polymer network with an enhanced density (Sapronov et al 2020). A similar effect was observed during the curing of epoxy compositions with the content of nanoparticles from 0.10 to 1.00 pts wt.…”

Section: Research Results and Their Discussionsupporting

confidence: 55%

New Black-Filled Epoxy Coatings for Repairing Surface of Equipment of Marine Ships

et al. 2021

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The methods for ensuring long-term and safe operation of marine equipment due to comprehensive repair technologies that use epoxy oligomers and new compositions based on them are developed. The influence of temperature and UltraSonic Treatment (UST) on the rheological properties of the pure epoxy matrix and compositions based on it is explored. The compositions have different content of nanodispersed soot carbon black of brand PowCarbon 2419G (particle size of 24 ± 2 nm). It is established that when nanoparticle soot (q = 0.10…15.00 pts wt) is introduced into the composition of the epoxy matrix treated with ultrasound, the viscosity of the composition increases gradually. Based on the results obtained, temperature ranges are recommended, in which the viscosity of the studied compositions reaches optimal technological parameters for the effective impregnation of threads, tows and various fabrics, and which provide for the effective application of the composition to the working surfaces of marine equipment. Technical recommendations are given for applying the developed black-filled epoxy compositions to the working surfaces of parts, ship mechanisms and pipeline systems of marine vessels.

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Section: Research Results and Their Discussionsupporting

confidence: 55%

New Black-Filled Epoxy Coatings for Repairing Surface of Equipment of Marine Ships

et al. 2021

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“…Thanks to their improved mechanical, physical, and chemical properties, reactive plastics are used as adhesive materials or multi-functional products in many industries [1][2][3][4][5][6][7][8][9]. In terms of corrosion resistance, reactive plastic polymers are enormously superior to metals and their alloys [10][11][12][13], so they can be used as protective coatings, for example, when operating parts of transport equipment such as the hull parts of ships.…”

Section: Introductionmentioning

confidence: 99%

Increasing the Service Life of Marine Transport Using Heat-Resistant Polymer Nanocomposites

Sapronov,

Buketov,

Kim

et al. 2024

Materials

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This paper presents the technological aspects of increasing the thermal stability of polymers, with epoxy binder used to form the polymer materials. Polyethylene polyamine was used to crosslink the epoxy binder. To ensure the thermal stability of the polymer, nanodispersed condensed carbon with a dispersion of 10–16 nm was used. The research into nanocomposites under the influence of elevated temperatures was carried out using the “Thermoscan-2” derivatograph. Complex studies of thermophysical properties were carried out, according to the results of which the optimal content of nanofiller (0.050 pts.wt.) was determined. At the same time, this particular polymer was characterized by the following properties: temperature of the beginning of mass loss—T0 = 624.9 K; final temperature of mass loss—Tf = 718.7 K; relative mass loss—εm = 60.3%. Research into the activation energy of thermal destruction was performed to determine the resistance to the destruction of chemical bonds. It was proved that the maximum value of activation energy (170.1 kJ/mol) is characterized by nanocomposites with a content of nanodispersed condensed carbon of 0.050 pts.wt., which indicates the thermal stability of the polymer.

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“…Adhesives are widely used in engineering [1,2], biomedicine [3,4] and daily life [5,6]. However, underwater adhesion is technically challenging, because water molecules may penetrate the adhesion interface to form a hydration film [7,8] in wet environment, which prevents the sufficient contact of adhesive with substrate surface.…”

Section: Introductionmentioning

confidence: 99%

A hyperbranched polymer-based water-resistant adhesive: Durable underwater adhesion and primer for anchoring anti-fouling hydrogel coating

Zhang

Cui

Sun

et al. 2021

Sci. China Technol. Sci.

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Direct deployment of gluing and achieving durable robust adhesion in water is challenging due to difficulty in repelling interface water. This work reports a novel hyperbranched polymer-based water-resistant adhesive (HBPBA) based on Michael addition reaction of multi-vinyl monomers with dopamine and 3-aminophenylboronic acid. Upon encountering water, the HBPBA forms coacervates whose hydrophobic chains aggregate to displace interface water, and meanwhile the catechols exposing outwards contribute to underwater adhesion. The HBPBA can strongly glue diverse substrates including PTFE, PE, PET, ceramic, Ti and stainless steel. The HBPBA can maintain stable adhesion in different environments, such as tap water, simulated sea water, PBS, and a wide range of pH solutions (pH 2 to 10) for 3 months, supposedly due to the complexation of catechol with boronic acid. Intriguingly, HBPBA film can be bonded to the titanium surface as a primer, which firmly anchors the antifouling PNAGA-PCBAA hydrogel coating through copolymerization of remaining double bonds in HBPBA and NAGA plus CBAA. The PNAGA-PCBAA hydrogel-modified titanium is biocompatible and shows outstanding antifouling ability both in vitro and in vivo. This work proposes a new strategy for creating underwater deployable and water-resistant adhesives that may find promising applications in engineering and biomedical fields.

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Development and Use of New Polymer Adhesives for the Restoration of Marine Equipment Units

Cited by 14 publications

References 22 publications

New Black-Filled Epoxy Coatings for Repairing Surface of Equipment of Marine Ships

New Black-Filled Epoxy Coatings for Repairing Surface of Equipment of Marine Ships

Increasing the Service Life of Marine Transport Using Heat-Resistant Polymer Nanocomposites

A hyperbranched polymer-based water-resistant adhesive: Durable underwater adhesion and primer for anchoring anti-fouling hydrogel coating

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