Modifying of UHMWPE fishing nets with layer-by-layer deposition method for antifouling properties / Gülsah Ekin kartal in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 18, N° 1 (01/2021)  

[article]  inJOURNAL OF COATINGS TECHNOLOGY AND RESEARCH > Vol. 18, N° 1 (01/2021) . - p. 163-171 Titre : Modifying of UHMWPE fishing nets with layer-by-layer deposition method for antifouling properties Type de document : texte imprimé Auteurs : Gülsah Ekin kartal, Auteur ; Ayse Merih Sarusik, Auteur Année de publication : 2021 Article en page(s) : p. 163-171 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Borate de zinc Caractérisation Cationisation Couches minces multicouches Filets de pêche Formation de film Nanoparticules Oxyde de cuivre Oxyde de zinc Polyéthylène à ultra haut poids moléculaire Polyéthylèneimine Revêtement monocouche Revêtements antisalissures Index. décimale : 667.9 Revêtements et enduits Résumé : The nanoparticles-based, multilayer, nanocomposite films ZnO, Cu2O, zinc borate, and Econea® were fabricated on cationized ultra-high molecular weight polyethylene (UHMWPE) fishing nets using a layer-by-layer molecular self-assembly technique. For the cationic surface charge, the UHMWPE fishing nets were pretreated with polyethyleneimine using the dip-coating method. Scanning electron microscopy and energy-dispersive X-ray spectroscopy were used to examine the nano-ZnO, Cu2O, zinc borate, and Econea® multilayer films deposited on the fishing nets. The fishing nets were placed in a fish farm located in the Aegean Sea for 6 months. The nano-Econea® films exhibited excellent antifouling activity against microorganisms. To evaluate the effect of the process on antifouling properties, physical tests of the nets were conducted before and after the nanoparticle treatment. The strength of the nets and fouling organisms were examined after the field study. Note de contenu : - EXPERIMENTAL : Materials - Cationization process - Nano-multilayer film formation - Characterization - RESULTS AND DISCUSSION : Characterization - Fieldwork - Macro-organisms analysis - Solidity of nets - Strength and weight analysis - Table 1 : Percentage of elemental contents of fishing nets deposited with 16-multilayer nanomaterial films - Table 2 : Solidity of biofouled fishing nets - Table 3 : Weighting results of fishing nets deposited with 16-multilayer nanomaterial films before and after the field - Table 4 : Strength and elongation values of fishing nets deposited with 16-multilayer nanomaterial films DOI : https://doi.org/10.1007/s11998-020-00392-7 En ligne : https://link.springer.com/content/pdf/10.1007/s11998-020-00392-7.pdf Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=35360 [article]

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Prevention of biofouling on aquaculture nets with eco-friendly antifouling paint formulation / Korhan Sen in COLORATION TECHNOLOGY, Vol. 136, N° 2 (04/2020)

[article]  inCOLORATION TECHNOLOGY > Vol. 136, N° 2 (04/2020) . - p. 120-129 Titre : Prevention of biofouling on aquaculture nets with eco-friendly antifouling paint formulation Type de document : texte imprimé Auteurs : Korhan Sen, Auteur ; Umit Halis Erdogan, Auteur ; Levent Cavas, Auteur Année de publication : 2020 Article en page(s) : p. 120-129 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Aquaculture Caractérisation Chimie écologique Colorimétrie Filets de pêche Revêtements antisalissures:Peinture antisalissures Index. décimale : 667.3 Teinture et impression des tissus Résumé : Aquaculture, which is an important part of food supply, is usually carried out in cage nets made of textile materials. Fouling organisms settle on the cage nets over time, close the mesh openings, and cause unwanted weight gain. In order to prevent fouling, aquaculture nets are generally treated with antifouling paints. In this paper, warp knitted cage nets made from various raw materials were treated with three different antifouling paints. Econea was used as a biocide to prepare an eco‐friendly antifouling paint formulation, and two copper‐based commercial antifouling paints were supplied for comparison. Antifouling paint‐treated and untreated net samples were immersed in a marine ecosystem next to an aquaculture zone for 6 months. Settlement of fouling organisms on nets was observed by taking underwater photographs at periodic intervals. Following the field study, changes in the structure of the nets and antifouling performance of the paints were evaluated considering the results of underwater photographs, biomass growth, variation in mass and strength tests. Colour fastness of the antifouling paints to sea water was also measured to learn about biocide release and surface hydrophobicity. The results show that copper‐free eco‐friendly antifouling paint is just as effective against the fouling mechanism for all types of nets as copper‐based commercial antifouling paints. The novel eco‐friendly formulation has promising results, which provides an alternative for producers when considering the selection of raw materials. Note de contenu : - EXPERIMENTAL : Materials - Preparation of AP-3 - Applications of APs - Field study - Characterisation of untrated and treated ANs - RESULTS AND DISCUSSION : Mass variations in ANs - Assessment of colour measurements - Colour fastness to sea water - Tensile properties of nets - Field study - SEM observation - Table 1 : Properties of aquaculture nets (ANs) and antifouling paints (APs) - Table 2 : Composition of antifouling paint 3 (AP-3) - Table 3 : Antifouling paint (AP)-treated nets and their abbreviations - Table 4 : Pick-up values and mass loss of aquaculture nets - Table 5 : Colorimetric values of the untreated and antifouling paint (AP)-treated nets before and after the field study DOI : https://doi.org/10.1111/cote.12454 Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=34231 [article]

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