Preparation and evaluation of amphiphilic polymer as fouling-release coating in marine environment / Peiqing Wang in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 14, N° 6 (11/2017)  

[article]  inJOURNAL OF COATINGS TECHNOLOGY AND RESEARCH > Vol. 14, N° 6 (11/2017) . - p. 1237-1245 Titre : Preparation and evaluation of amphiphilic polymer as fouling-release coating in marine environment Type de document : texte imprimé Auteurs : Peiqing Wang, Auteur ; Hong Jiang, Auteur ; Chunhua Ding, Auteur ; Guoqing Wang, Auteur ; Zhuolin Xie, Auteur ; Jiang Li, Auteur Année de publication : 2017 Article en page(s) : p. 1237-1245 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Copolymère styrène butadiène styrène Copolymères Fluoropolymères Marines (peinture) Polyéthylène glycol Polymères amphiphiles Revêtements antisalissures:Peinture antisalissures Index. décimale : 667.9 Revêtements et enduits Résumé : Polystyrene–polybutadiene–polystyrene (SBS), vinyl fluoride silicone (BD-FT-LSR) and polyethylene glycol were chosen as the reactors to synthesize amphiphilic polymer which was used to prepare a new type of fouling-release coating. To evaluate the fouling-release performance and explore the mechanism of the coating, artificial and real-sea environment tests were carried out in the experiments, respectively. IR and 1H NMR were utilized to characterize the structure of the polymer. The effect of fouling-release agent was explored by considering changes in the parameters of surface contact angle, XPS, elastic modulus, and TEM. Results of real-sea tests show that the new amphiphilic fouling-release coating has a very good antifouling performance and can be re-cleaned after 6 months of testing in the real-sea environment. These can be explained through hydrophilic PEG migrating to the surface to form a comb-type structure which reduces the adhesion strength of fouling organisms that can then be self-cleaned by flow from the surface of coatings. Note de contenu : - Materials - The preparation of amphiphilic polymer (SBS-co-BD-FT-LSR)-r-PEG - Preparation and characterization of coatings - Tests of water contact angle - Tests of elastic modulus - Tests of surface composition - Morphology of the coatings - Antifouling tests in laboratories - Antifouling tests in the real-sea environment DOI : 10.1007/s11998-017-9935-4 En ligne : https://link.springer.com/content/pdf/10.1007%2Fs11998-017-9935-4.pdf Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=29622 [article]

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Preparation and evaluation of degradable polyurethane with low surface energy for marine antifouling coating / Yue Xu in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 16, N° 4 (07/2019)  

[article]  inJOURNAL OF COATINGS TECHNOLOGY AND RESEARCH > Vol. 16, N° 4 (07/2019) . - p. 1055-1064 Titre : Preparation and evaluation of degradable polyurethane with low surface energy for marine antifouling coating Type de document : texte imprimé Auteurs : Yue Xu, Auteur ; Guoqing Wang, Auteur ; Zhuolin Xie, Auteur ; Aiming Wang, Auteur Année de publication : 2019 Article en page(s) : p. 1055-1064 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Angle de contact Anti-adhérence (matériaux) Energie de surface Hydrolyse Marines (peinture) Polymères -- Détérioration Polymères -- Synthèse Polyuréthanes Revêtements antisalissures:Peinture antisalissures Index. décimale : 667.9 Revêtements et enduits Résumé : Two polyurethanes were prepared through the reaction of 1,6-diisocyanatohexane (HDI) with two kinds of alcoholates. The first alcoholate was synthesized from alcoholized lactide (PLA) and dodecafluoroheptyl methacrylate (DFHMA) with the solid super acid (SO42−/ZrO) acting as the catalyst, and the other alcoholate was a mixture of PLA and DFHMA. The composition and structure of these two polyurethanes were investigated by infrared spectroscopy (FTIR) and differential scanning calorimetry (DSC). The mass loss, attachment of bacteria and algae, and the water contact angle were used to evaluate the degradable and antifouling performance of the two polyurethane coatings. The results showed that the maximum contact angle of PLIPFI reached 129°, its mass loss was higher than 10% in 65 days, and after 65 days, the mass loss appeared to be stable, and the antiadhesion performance of the polyurethanes coatings was also enhanced. All of these results indicated that the PU modified with a graft segment may be promising for obtaining antifouling materials that not only can resist the adhesion of microorganisms but also show self-renewal. Note de contenu : - Materials - Synthesis of the polymers - Preparation of the coating - Composition characterization - Structural characterization - Hydrolytic degradation - Contact angle measurement (CA) and surface energy (E) - Antiadhesion tests - Antifouling tests in the real sea environment DOI : 10.1007/s11998-018-00180-4 En ligne : https://link.springer.com/content/pdf/10.1007%2Fs11998-018-00180-4.pdf Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=32861 [article]

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