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Auteur Zhengwei Dai |
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Degradable polyurethane based on triblock polyols composed of polypropylene glycol and e-caprolactone for marine antifouling applications / Jinghua Yao in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 17, N° 4 (07/2020)
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Titre : Degradable polyurethane based on triblock polyols composed of polypropylene glycol and e-caprolactone for marine antifouling applications Type de document : texte imprimé Auteurs : Jinghua Yao, Auteur ; Zhengwei Dai, Auteur ; Yi Jie, Auteur ; Hongliang Yu, Auteur ; Bo Wu, Auteur ; Leyang Dai, Auteur Année de publication : 2020 Article en page(s) : p. 865-874 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Biodégradation
Copolymères séquencés
e-caprolactone
Marines (peinture)
Polyéthylène glycol
Polyols
Polyuréthanes
Revêtements -- Biodégradation
Revêtements antisalissures:Peinture antisalissures
Revêtements organiquesIndex. décimale : 667.9 Revêtements et enduits Résumé : Marine antifouling coatings require superior mechanical properties and effective antifouling. Degradable polyurethane (PU) coatings have a reputation for high performance. Degradable PU films were prepared by mixing triblock polyols [composed of polyether (polypropylene glycol or polyethylene glycol) and e;-caprolactone] and crosslinker agent (tolylene diisocyanate trimer). The hydrolytic degradation and water absorption experiments of PU films demonstrated that the PU films could erode in artificial sea water, which were mainly controlled by the hydrophilic property of the polyether. Marine field test revealed that degradable polyurethane had excellent efficiency in preventing biofouling for more than 9 months. Note de contenu : - MATERIALS AND METHODS : Materials - Synthesis of triblock polyols - Preparation of PU films - Characterization of triblock polyols - Characterization of polyurethane films - Characterization of polyurethane coatings
- RESULTS AND DISCUSSION : Properties of triblock polyols - Properties of PU films - Properties of PU coatingsEn ligne : https://link.springer.com/content/pdf/10.1007/s11998-019-00313-3.pdf Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=34376
in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH > Vol. 17, N° 4 (07/2020) . - p. 865-874[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 21864 - Périodique Bibliothèque principale Documentaires Disponible A novel marine antifouling coating based on a self-polishing zinc-polyurethane copolymer / Zhengwei Dai in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 18, N° 5 (09/2021)
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Titre : A novel marine antifouling coating based on a self-polishing zinc-polyurethane copolymer Type de document : texte imprimé Auteurs : Zhengwei Dai, Auteur ; Miao Cao, Auteur ; Li Shuqing, Auteur ; Jinghua Yao, Auteur ; Bo Wu, Auteur ; Yaping Wang, Auteur ; Huajin Wang, Auteur ; Jun Dong, Auteur ; Jie Yi, Auteur Année de publication : 2021 Article en page(s) : p. 1333-1343 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Caractérisation
Composés organiques -- Synthèse
Couches minces -- Propriétés mécaniques
Marines (peinture)
Polyuréthanes
Propionique, Acide
Revêtements antisalissures:Peinture antisalissures
ZincIndex. décimale : 667.9 Revêtements et enduits Résumé : A series of novel zinc-polyurethane copolymers, which contained zinc cations in the form of polymeric salt and can be exchanged with the sodium ions in sea water, was prepared. As the ion exchange reaction proceeded, the zinc-polyurethane copolymers became soluble and leached out by the flow of sea water. The self-polishing rates of marine antifouling coatings formulated with the polymers proved to be easily controlled by the amount of 2,2-bis(hydroxymethyl) propionic acid. Marine field test revealed that zinc-polyurethane antifouling coatings had excellent efficiency in preventing marine biofouling for more than 12 months. These results proved that the zinc-polyurethane copolymers were a good candidate for the preparation of long-efficiency and controllable marine antifouling coatings. Note de contenu : - MATERIALS AND METHODS : Materials - Synthesis of zinc-polyurethane - Characterization of the zinc-polyurethane films - Characterization of zinc-polyurethane antifouling coatings
- RESULTS AND DISCUSSION : Properties of the zinc-polyurethane films - Water contact angle on the surfaces of zinc-polyurethane films - Mechanical properties of zinc-polyurethane films - Water absorption rates of zinc-polyurethane films - Self-polishing properties of zinc-polyurethane films - Properties of the zinc-polyurethane antifouling coatings - Self-polishing rate of the thickness of zinc-polyurethane antifouling coatings - The DCOIT release rates of zinc-polyurethane antifouling coatings - Surface analysis of zinc-polyurethane films and coatings - Assessment of antifouling performance
- Table 1 The recipes of zinc-polyurethane antifouling coatings
- Table 2 The synthesis of ZnX-PU
- Table 3 The acid number of DMPAX-PU
- Table 4 The acid number of ZnX-PU
- Table 5 The mechanical properties of zinc-polyurethane films
- Table 6 The typical images of zinc-polyurethane films
- Table 7 The typical images of zinc-polyurethane coatingsDOI : https://doi.org/10.1007/s11998-021-00496-8 En ligne : https://link.springer.com/content/pdf/10.1007/s11998-021-00496-8.pdf Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=36436
in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH > Vol. 18, N° 5 (09/2021) . - p. 1333-1343[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 22991 - Périodique Bibliothèque principale Documentaires Disponible