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Lifting the lid : The antifouling efficiency measurement battleground in PROTECTIVE COATINGS EUROPE (PCE), Vol. 5, N° 1 (01-02-03/2013)
[article]
Titre : Lifting the lid : The antifouling efficiency measurement battleground Type de document : texte imprimé Année de publication : 2013 Article en page(s) : p. 2-6 Langues : Anglais (eng) Catégories : Marines (peinture)
Revêtements antisalissures:Peinture antisalissuresIndex. décimale : 667.9 Revêtements et enduits Résumé : When you buy a car, you probably check fuel consumption figures. Size, design, engine efficiency and tyres all play a part - but your choice of paint will have more to do with colour than aeronynamic efficiency.
Marine hull coatings are a different matter. A fouled hull requires as much as 40% more power to drive it through the water. In fact, a US Navy study has put the figure as high as 86% when a badly fouled ship is cruising as speed.
An average cargo ship might burn 300 tons of fuel a day, the larger ones as much as small power stations, and fuel prices have more than doubled since 2006. For operators, that represents more than $150000 of fuel per day while at sea. The costs are a major headache for the shipping industry, and fuel efficiency has become at hot topic. While engines, ship design and other factors are important, they cannot easily be changed : the biggest achievagle savings lie in efficient coating systems to keep hulls clean and smooth.
This coatings market is already worth over $5bn a year to the paint industry, and with so much at stake it is predicted to hit $10.2bn by 2018.Note de contenu : - Low-grade fuel
- Coatings confusion
- Multiple parameters
- Uncertain standards
- International paint
- Hempel's standard
- Jotun's promotion
- Nippon's approach
- Real word conditions
- A to G rating
- MPG equivalentPermalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=17801
in PROTECTIVE COATINGS EUROPE (PCE) > Vol. 5, N° 1 (01-02-03/2013) . - p. 2-6[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 14786 - Périodique Bibliothèque principale Documentaires Disponible Long-term stability of PEG-based antifouling surfaces in seawater / Albert Camós Noguer in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 13, N° 4 (07/2016)
[article]
Titre : Long-term stability of PEG-based antifouling surfaces in seawater Type de document : texte imprimé Auteurs : Albert Camós Noguer, Auteur ; Stefan Møller Olsen, Auteur ; Søren Hvilsted, Auteur ; Søren Kiil, Auteur Année de publication : 2016 Article en page(s) : p. 567-575 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Marines (peinture)
PolydiméthylsiloxaneLe polydiméthylsiloxane —[O-Si(CH3)2]n—, ou poly(diméthylsiloxane) selon la nomenclature systématique, communément appelé PDMS ou diméthicone, est un polymère organominéral de la famille des siloxanes souvent présent dans les shampoings. On l'y ajoute pour augmenter le volume des cheveux mais il peut également aller boucher les pores du cuir chevelu et rendre les cheveux gras. C'est une des raisons pour lesquelles se laver les cheveux tous les jours est très déconseillé avec un shampooing contenant des silicones.
Il existe également de l'amodiméthicone, qui est un dérivé du diméthicone.
Le polydiméthylsiloxane est un additif alimentaire (E900), utilisé comme antimoussant dans les boissons (Coca-Cola BlāK).
La chaîne de poly(diméthylsiloxane) forme également la structure de base des huiles et des caoutchoucs silicones.
Polyéthylène glycol
Polymères -- Détérioration
Revêtements antisalissures:Peinture antisalissuresIndex. décimale : 667.9 Revêtements et enduits Résumé : Poly(ethylene glycol) (PEG) is a hydrophilic polymer that has been extensively used in the biomedical and marine environment due to its antifouling properties. In the biomedical field, PEG has been successfully used to functionalize surfaces due to its resistance to cell and nonspecific protein adsorption. However, the long-term stability of PEG has limited its use in some areas. In the shipping industry, there is a great need for long-term solutions to keep the hulls of the ships fouling-free. The long-term stability of PEG in polydimethylsiloxane (PDMS) fouling-release coatings is studied here, in both accelerated laboratory tests and real seawater conditions. This article shows how PEG-based copolymers, which have been exposed in fouling-release coatings to real-life seawater conditions, are isolated and compared to those exposed to accelerated laboratory testing with successful results. The influence of the chemistry of the PEG compounds, the chosen laboratory degrading agents, and the possible degradation pathways and products are discussed. Note de contenu : - MATERIALS AND METHODS : Materials - PDMS-PEG-PPC copolymers - Separation of nonattached PEG - Laboraroty experiments - Seawater experiments - Liquid chromatography - NMR - FTIR spectroscopy - UV radiation exposure
- RESULTS AND DISCUSSION : Laboratory accelerated tests - Analysis of degradation - Seawater experimentsDOI : 10.1007/s11998-016-9801-9 En ligne : https://link.springer.com/content/pdf/10.1007%2Fs11998-016-9801-9.pdf Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=26738
in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH > Vol. 13, N° 4 (07/2016) . - p. 567-575[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 18223 - Périodique Bibliothèque principale Documentaires Disponible Lubricant controlled release silicone fouling release coatings based on mesoporous molecular sieves / Jinhua Lei in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 20, N° 2 (03/2023)
[article]
Titre : Lubricant controlled release silicone fouling release coatings based on mesoporous molecular sieves Type de document : texte imprimé Auteurs : Jinhua Lei, Auteur ; Zhongzheng Li, Auteur ; Tian He, Auteur ; Zhuqian Wang, Auteur ; Shitao Yao, Auteur ; Huayu Qiu, Auteur Année de publication : 2023 Article en page(s) : p. 703-711 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Absorption
Caractérisation
Lubrifiants
Matériaux mésoporeux
Revêtements -- Propriétés mécaniques
Revêtements antisalissures
SiliconesLes silicones, ou polysiloxanes, sont des composés inorganiques formés d'une chaine silicium-oxygène (...-Si-O-Si-O-Si-O-...) sur laquelle des groupes se fixent, sur les atomes de silicium. Certains groupes organiques peuvent être utilisés pour relier entre elles plusieurs de ces chaines (...-Si-O-...). Le type le plus courant est le poly(diméthylsiloxane) linéaire ou PDMS. Le second groupe en importance de matériaux en silicone est celui des résines de silicone, formées par des oligosiloxanes ramifiés ou en forme de cage (wiki).
Système de libération contrôlée (technologie)
Tamis moléculairesIndex. décimale : 667.9 Revêtements et enduits Résumé : Silicone fouling release coatings (FRCs) are biocide-free coatings, and their antifouling performance depends on the nonstick properties and the fouling release behavior. The antifouling performance can be further improved by introducing lubricant into such coatings to form lubricant-infused FRCs (iFRCs). The lubricant will be continuously released to the surface of iFRCs during use, and, in turn, on one hand, the surface of iFRCs will be updated; on the other hand, the attachment of mussels and other organisms will be affected. Inspired by the idea of drug release using porous materials, mesoporous molecular sieves (MMSs), including MCM-41 and SBA-15, were introduced into silicone FRCs in this paper because of their large specific surface area and pore volume. We expected that the release of lubricant could be controlled through MMS in the obtained coatings (iFRC-MMS), so as to obtain FRC with controllable antifouling performance, such as the long-term fouling prevention capacity. Since the release of lubricant usually takes a long time, the effect of MMS on the release of lubricant was studied by an accelerated release test in a good solvent. The surface performance, antifouling performance, and mechanical properties of iFRC-MMS have been studied through the static water contact angle (WCA) measurements, the antidiatom absorption test, and the mechanical performance tests, respectively. Our study demonstrated that: (1) the release of lubricant was indeed affected by MMS in iFRC-MMS as we expected, the release rate can be delayed to a certain extent by both MCM-41 and SBA-15, and (2) there was a compatibility relationship between the pore size of MMS and the molecular size of lubricant, (3) the release of the lubricant was also affected by the molecular weight of lubricant, (4) the intrinsic surface performance and fouling release performance of silicone FRCs were not affected by the introduction of MMS, while the mechanical properties of iFRC-MMS were slightly improved. Note de contenu : - MATERIALS AND METHODS : Reagents - Preparation of lubricant infused MMS (i-MMS) - Preparation of FRC with i-MMS (iFRC-MMS) - Characterization of the distribution of MMS in iFRC-MMS - Accelerated release test of lubricant - Performance tests of iFRC-MMS
- RESULTS AND DISCUSSION : Lubricant absorption capacity of MMS - Distribution of MMS in iFRC-MMS - Effect of MMS on lubricant release from iFRC-MMS - Effect of the lubricant viscosity on lubricant release from iFRC-MMS - Effect of MMS on the surface performance of iFRC-MMS - Effect of MMS on the antifouling performance of iFRC-MMS - Effect of MMS on the mechanical properties of iFRC-MMS
Table 1 : Mechanical properties of iFRC-MMSDOI : https://doi.org/10.1007/s11998-022-00702-1 En ligne : https://link.springer.com/content/pdf/10.1007/s11998-022-00702-1.pdf?pdf=button Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=39313
in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH > Vol. 20, N° 2 (03/2023) . - p. 703-711[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 24056 - Périodique Bibliothèque principale Documentaires Disponible Marine biofouling inhibition by polyurethane conductive coatings / Jer-Ruey Huang in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 7, N° 1 (01/2010)
[article]
Titre : Marine biofouling inhibition by polyurethane conductive coatings Type de document : texte imprimé Auteurs : Jer-Ruey Huang, Auteur ; Wei-Ting Lin, Auteur ; Ran Huang, Auteur ; Chih-Yang Lin, Auteur ; Jiann-Kuo Wu, Auteur Année de publication : 2010 Article en page(s) : p. 111-117 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Aquaculture
Conducteurs organiques
Graphite
Marines (peinture)
Noir de carbone
Polyuréthanes
Revêtements antisalissures:Peinture antisalissuresIndex. décimale : 667.9 Revêtements et enduits Résumé : The purpose of the present study is to develop a new conductive coating for application on fishing nets that can be used as an anode, while submersed in the sea, to generate free chlorine which will in turn inhibit marine biofouling. To confirm the durability and viability of this coating, long-term field tests were carried out in the Nanao harbor in Taiwan. Electrical resistivity tests showed that polyurethane resin with carbon black and graphite can demonstrate the lowest resistivity: 0.06 Ωm. This sample also generated optimal quantities of free chlorine, which performs excellent antifouling properties. The use of carbon black in conjunction with graphite did prove to yield greater benefits. A 500-day field test showed that the PU-CG conductive coatings reduced the quantity of marine biofouling attached to the cage by approximately 79%. Furthermore, the chlorine produced was within safe levels, and judged not to pollute the sea. However, this antifouling system still shows durable problems which remain to be considered. DOI : 10.1007/s11998-008-9151-3 En ligne : http://download.springer.com/static/pdf/703/art%253A10.1007%252Fs11998-008-9151- [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=8354
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Code-barres Cote Support Localisation Section Disponibilité 011962 - Périodique Bibliothèque principale Documentaires Disponible Marine biofouling resistance rating using image analysis / Morten Pedersen in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 19, N° 4 (07/2022)
[article]
Titre : Marine biofouling resistance rating using image analysis Type de document : texte imprimé Auteurs : Morten Pedersen, Auteur ; Claus Erik Weinell, Auteur ; Burak Ulusoy, Auteur ; Kim Dam-Johansen, Auteur Année de publication : 2022 Article en page(s) : p. 1127-1138 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Analyse d'image L'analyse d'image est la reconnaissance des éléments contenus dans l'image. Il ne faut pas confondre analyse (décomposition en éléments) et traitement (action sur les composantes) de l'image.
Marines (peinture)
Résistance à la salissure
Revêtements antisalissures
Salissures biologiquesIndex. décimale : 667.9 Revêtements et enduits Résumé : Biofouling on ship hulls can cause increased fuel consumption and the global spread of nonindigenous species. The shipping industry utilizes fouling control coatings (FCC) to prevent biofouling from occurring on the ship hull. The evaluation standards for the performance of FCC are based on manual inspections, which unavoidably induce some degree of subjectivity. A standardized biofouling recognition model using image analysis would provide a more objective basis for the evaluation of FCC. For this purpose, several coated panels were immersed in the ocean at CoaST Maritime Test Centre for an exposure period of six weeks, whereafter, the panels were fully covered with biofouling. The program ilastik was then successfully used to train a pixel classification model, which could provide a simple segmentation of the different biofouling categories detected on a coated surface. From the simple segmentation, a coverage percentage of biofouling was determined. The percentages can stand alone to provide information on the degree of biofouling or be used in combination with the guidelines from the European Chemicals Agency to calculate a fouling resistance rating (FRR). The FRR obtained from the model was compared with FRR values obtained from the manual evaluation of the panels. Note de contenu : - METHOD : Exposure procedure - Fouling resistance rating (FRR) - Image analysis procedure
- RESULTS : Deviation in manual evaluations - Pixel classification model - Comparison of manual and model FRR
- DISCUSSION : Challenges related to panel imaging - Pixel classification model - Time efficiency - ECHA guideline - Future work
- Table 1 : The weighted ratings, used to determine the FRR, for the different categories of biofouling related to the coverage intervals. A modification of the tables from ECHA
- Table 2 : Summary of the FRR for all the panels achieved from the model and the manual evaluation. The ratings in the brackets show the manual evaluationDOI : https://doi.org/10.1007/s11998-021-00612-2 En ligne : https://link.springer.com/content/pdf/10.1007/s11998-022-00612-2.pdf Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=38041
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Code-barres Cote Support Localisation Section Disponibilité 23574 - Périodique Bibliothèque principale Documentaires Disponible Marine coatings / Stephen Rodgers ; Henry R. Bleile / Blue Bell [Etats-Unis] : Federation of societies for coatings technology (1989)
PermalinkMarine coatings : making sense of U.S., State, and local mandates of copper-based antifouling regulations / Aggie Lotz in COATINGS TECH, Vol. 13, N° 9 (09/2016)
PermalinkMeasuring copper release from antifouling paints / Eivind A. Berg in EUROPEAN COATINGS JOURNAL (ECJ), N° 7-8/95 (07-08/1995)
PermalinkMechanically enhanced self-stratified acrylic/silicone antifouling coatings / Jingjing Xue in POLYMERS PAINT COLOUR JOURNAL - PPCJ, Vol. 212, N° 4674 (04/2022)
PermalinkMicrocapsule-protected actives reduce leaching / Juha Nikkola in EUROPEAN COATINGS JOURNAL (ECJ), N° 4 (04/2014)
PermalinkMicrofouling bacteria and the use of enzymes in eco-friendly antifouling technology / Erai Aykin in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 16, N° 3 (05/2019)
PermalinkMitigation of marine fouling growth through TBT free antifouling coating - A review / Nirmalya Dey in PAINTINDIA, Vol. LXI, N° 11 (11/2011)
PermalinkModified colloidal silica for the enhancement of dirt pick-up resistance in POLYMERS PAINT COLOUR JOURNAL - PPCJ, Vol. 203, N° 4580 (01/2013)
PermalinkModifying 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)
PermalinkMultifunctional coating based on nano fillers and natural substances / Roberto Cafagna in POLYMERS PAINT COLOUR JOURNAL - PPCJ, Vol. 208, N° 4647 (12/2018)
PermalinkNanotechnology in marine coatings for better corrosion resistance in PAINTINDIA, Vol. LXIV, N° 6 (06/2014)
PermalinkNanotechnology : A new vision of coating technology / Raul Arvind in PAINTINDIA, Vol. LX, N° 9 (09/2010)
PermalinkNew additive to enhance surface cleanability / Gururaj Moharir in PAINTINDIA, Vol. LVII, N° 6 (06/2007)
PermalinkNew benchmark to prove coatings performance / Jim Brown in POLYMERS PAINT COLOUR JOURNAL - PPCJ, Vol. 202, N° 4574 (07/2012)
PermalinkNew wave of business for marine coatings / John Hopewell in POLYMERS PAINT COLOUR JOURNAL - PPCJ, Vol. 201, N° 4556 (01/2011)
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