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A review of polymer-matrix piezoelectric composite coatings for energy harvesting and smart sensors / Kabir Baidya in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 21, N° 1 (01/2024)
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Titre : A review of polymer-matrix piezoelectric composite coatings for energy harvesting and smart sensors Type de document : texte imprimé Auteurs : Kabir Baidya, Auteur ; Amritendu Roy, Auteur ; Kaushik Das, Auteur Année de publication : 2024 Article en page(s) : p. 55-85 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Capteurs (technologie)
Energie -- Récupération
Formulation (Génie chimique)
Matériaux intelligents
Matériaux piézoélectriques
Polymères
Revêtements organiques
Revêtements:PeintureIndex. décimale : 667.9 Revêtements et enduits Résumé : Piezoelectric paints/coatings usually consist of a polymeric matrix (binder) with embedded piezoelectric ceramics (second phase or pigment) in the form of microparticles or nanoparticles. Piezoelectric paints have gained prominence in aerospace applications among the various categories of smart coatings, especially for structural health monitoring and absorbing radiation. These coatings (in the form of thin/thick films) are also being applied in the place of brittle piezo-ceramics in various microelectronic devices, for example, in gas sensors and flexible electronics, as well as in various energy-harvesting applications. This review paper focuses on the current state of research for the processing and characterization of piezoelectric composites used as paints/coatings films. Special emphasis is on: (i) the processes of application of piezoelectric paints/coatings in the form of a single layer or stacks of thick films and (ii) the processes of poling these piezoelectric coatings. Various modes and process parameters of poling and their effects on the piezoelectric output of different piezoelectric composites are discussed with examples from the literature. Finally, we have tried to identify the existing issues and address the possible way forward in terms of industrial or academic research within the domain of piezoelectric paint/coating film. Note de contenu : - Fundamentals of piezoelectricity, piezoelectric materials and their properties
- Piezoelectric smart composite coating
- Process of application of piezoelectric composite coating
- Poling of piezoelectric materials
- Performance of piezoelectric composite coating/paints
- Summary, existing issues and the way forward
- Table 1 : Piezoelectric and electromechanical properties of piezo-ceramics and piezopolymers
- Table 2 : Formulation of piezoelectric paint based on KNN and alkyd resin
- Table 3 : Ingredients, composition, casting and thickness for various fabricated coating films
- Table 4 : Poling type, electrode and poling condition for various fabricated composite coating films
- Table 5 : Composite coatings composition and piezoelectric outputDOI : https://doi.org/10.1007/s11998-023-00819-x En ligne : https://link.springer.com/content/pdf/10.1007/s11998-023-00819-x.pdf Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=40436
in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH > Vol. 21, N° 1 (01/2024) . - p. 55-85[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 24443 - Périodique Bibliothèque principale Documentaires Disponible Synthesis and characterization of castor oil-based branched polyols from renewable resources and their polyurethane-urea coatings / Allauddin Shaik in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 16, N° 2 (03/2019)
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Titre : Synthesis and characterization of castor oil-based branched polyols from renewable resources and their polyurethane-urea coatings Type de document : texte imprimé Auteurs : Allauddin Shaik, Auteur ; Kabir Baidya, Auteur ; Kirankumar M. Nehete, Auteur ; Subarna Shyamroy, Auteur Année de publication : 2019 Article en page(s) : p. 387-400 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Anhydride succinique
Caractérisation
Copolymère uréthane-urée
Gonflement (physique)
Huile de ricin et constituants
Polymères -- Synthèse
Polymères ramifiés
Polyols
Polyuréthanes
Transition vitreuseIndex. décimale : 667.9 Revêtements et enduits Résumé : The chemical modifications of castor oil (CO) to develop branched polyols and their polyurethane-urea coatings have been investigated. For this purpose, castor oil-based branched polyols (COBPs) were synthesized from CO by modifying with succinic anhydride followed by reaction with hydroxyl group moieties like petrochemical-based pentaerythritol, trimethylolpropane and bio-based glycerol. The COBPs were characterized by using Fourier transform infrared, 1H and 13C nuclear magnetic resonance spectroscopies, gel permeation chromatography and differential scanning calorimetry. These COBPs were further urethanized with isophorone diisocyanate at OH/NCO ratio of 1:1.6 to get the isocyanate-terminated polyurethane prepolymers. The surplus isocyanate groups of the prepolymer were cured with atmospheric moisture at ambient temperature condition to form uniform film with fast surface drying. The thermo-mechanical, viscoelastic and swelling properties were evaluated for the cured coating films. Properties have been discussed from the viewpoint of branched network and also the urethane segment present in the structure. The glass transition temperatures of the coating films were found to be in the range of 32–64°C. The modified castor oil coating films show better thermo-mechanical and viscoelastic properties in comparison with control (unmodified castor oil) coating films. This work delivers an effective and promising way to synthesize branched moieties in plant oil-based high performance coatings. Note de contenu : - EXPERIMENTAL SECTION : Materials
- METHODS : Synthesis of acid-terminated castor oil (COSA) - Synthesis of castor oil-based branched polyols (COBPs)
- CHARACTERIZATION : Structural analysis of CO, COSA and COBPs - Drying time - DMA analysis - Swelling properties - TGA analysisDOI : 10.1007/s11998-018-0118-8 En ligne : https://link.springer.com/content/pdf/10.1007%2Fs11998-018-0118-8.pdf Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=32411
in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH > Vol. 16, N° 2 (03/2019) . - p. 387-400[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 20894 - Périodique Bibliothèque principale Documentaires Disponible