Fluorescence based corrosion detecting epoxy coating

Gelatin (GE), a nontoxic and degradable biomass resource, is a multistage hydrolysate of collagen. However, its application in adhesives was always limited by its brittleness and poor water resistance. In order to overcome this shortcoming, herein, epoxy-terminated hyperbranched polymers (EHPAEs) were first selected as a cross-linking agent to modify the GE extracted from leather solid wastes to prepare a series of novel GE-based environmentally friendly adhesives. First, EHPAE was synthesized and the structure of the hyperbranched polymer was measured by Fourier-transform infrared and 1H NMR spectroscopy. Then, the adhesives were obtained using the EHPAE to modify GE. The adhesion effect of the prepared adhesives was evaluated by tensile and T-peel tests on the surface of leather, in order to determine whether this adhesive achieved the quality requirements for footwear and bags. The result indicated that EHPAE-modified GE-based adhesives had higher solid content, superior adhesion ability, and water resistance. Moreover, the bonding layer of this adhesive was tough and ductile, while the bonding layers of the recently reported GE-based adhesives were brittle. This adhesive also surpassed the recently reported GE-based adhesives in terms of water resistance and adhesion performance.

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“…The hydroxyl value and the epoxy value of HBP were, respectively, evaluated according to the literature.…”

Section: Methodsmentioning

confidence: 99%

“…Determination of the Hydroxyl Value and the Epoxy Value. The hydroxyl value 55 and the epoxy value 56 of HBP were, respectively, evaluated according to the literature.…”

Section: Preparation Of Epoxy-terminated Hyperbranched Poly(amine-est...mentioning

confidence: 99%

Novel Gelatin-based Eco-friendly Adhesive with a Hyperbranched Cross-linked Structure

Wang

Zhu

Liu

et al. 2020

Ind. Eng. Chem. Res.

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“…4,32,33 Furthermore, the latter technique is still applicable after preparation for the investigation with fluorescence microscopy or CLSM, respectively (e.g. Dhole et al 51 ), allowing 'correlative microscopy' in support of identifying the trace making microendoliths in the context of the morphology of their microborings (see next section). Alternatively, the stained samples are still accessible for molecular analyses (see Morro & Elowsky 52 ), again supporting the identification of microendoliths.…”

Section: Applicability and Advantages Of Fluorescent Staining And Clsmmentioning

confidence: 99%

Exploring confocal laser scanning microscopy (CLSM) and fluorescence staining as a tool for imaging and quantifying traces of marine microbioerosion and their trace‐making microendoliths

Schätzle

Wisshak

Bick

et al. 2021

Journal of Microscopy

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Microscopic organisms that penetrate calcareous structures by actively dissolving the carbonate matrix, namely microendoliths, have an important influence on the breakdown of marine carbonates. The study of these microorganisms and the bioerosion traces they produce is crucial for understanding the impact of their bioeroding activity on the carbonate recycling in environments under global climate change. Traditionally, either the extracted microendoliths were studied by conventional microscopy or their traces were investigated using scanning electron microscopy (SEM) of epoxy resin casts. A visualisation of the microendoliths in situ, that is within their complex microbioerosion structures, was previously limited to the laborious and time-consuming double-inclusion cast-embedding technique. Here, we assess the applicability of various fluorescence staining methods in combination with confocal laser scanning microscopy (CLSM) for the study of fungal microendoliths in situ in partly translucent mollusc shells. Among the tested methods, specific staining with dyes against the DNA (nuclei) of the trace making organisms turned out to be a useful and reproducible approach. Bright and clearly delineated fluorescence signals of microendolithic nuclei allow, for instance, a differentiation between abandoned and still populated microborings. Furthermore, infiltrating the microborings with fluorescently stained resin seems to be of great capability for the visualisation and quantification of microbioerosion structures in their original spatial orientation. Potential fields of application are rapid assessments of endolithic bio-and ichnodiversity and the quantification of the impact of microendoliths on the overall calcium carbonate turnover. The method can be applied after CLSM of the stained microendoliths and retains the opportunity for a subsequentThis is an open access article under the terms of the Creative Commons Attribution-NonCommercial-NoDerivs License, which permits use and distribution in any medium, provided the original work is properly cited, the use is non-commercial and no modifications or adaptations are made.

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“…These materials are basically utilized in medicine for protection, surfacial covering, and corrosion suppression. Secondarily, these materials are utilized in biocompatibility, drug delivery, and in other fields such as military, automobile, energy, environment, and so on [26] .…”

Section: Pnc Coatings Properties and Classificationmentioning

confidence: 99%

Recently Emerging Nanotechnological Advancements in Polymer Nanocomposite Coatings for Anti-corrosion, Anti-fouling and Self-healing

Idumah

Obele

Emmanuel

et al. 2020

Surfaces and Interfaces

123

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Fluorescence based corrosion detecting epoxy coating

Cited by 22 publications

References 28 publications

Novel Gelatin-based Eco-friendly Adhesive with a Hyperbranched Cross-linked Structure

Novel Gelatin-based Eco-friendly Adhesive with a Hyperbranched Cross-linked Structure

Exploring confocal laser scanning microscopy (CLSM) and fluorescence staining as a tool for imaging and quantifying traces of marine microbioerosion and their trace‐making microendoliths

Recently Emerging Nanotechnological Advancements in Polymer Nanocomposite Coatings for Anti-corrosion, Anti-fouling and Self-healing

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