Growing the bio economy : Emerging development of nanocellulose applications in paint and coating / Shweta Amrutkar in PAINTINDIA, Vol. LXXIII, N° 10 (10/2023)  

[article]  inPAINTINDIA > Vol. LXXIII, N° 10 (10/2023) . - p. 62-101 Titre : Growing the bio economy : Emerging development of nanocellulose applications in paint and coating Type de document : texte imprimé Auteurs : Shweta Amrutkar, Auteur Année de publication : 2023 Article en page(s) : p. 62-101 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Cellulose La cellulose est un glucide constitué d'une chaîne linéaire de molécules de D-Glucose (entre 200 et 14 000) et principal constituant des végétaux et en particulier de la paroi de leurs cellules. Fibrilles de cellulose Nanofibres Peinture -- Effets des produits chimiques Polymères cristallins Revêtements (produits chimiques) Revêtements en phase aqueuse:Peinture en phase aqueuse Index. décimale : 667.9 Revêtements et enduits Résumé : Nanocellulose has received tremendous attention during the last decade due to its inherent unique properties such as high strength, high surface area, and flexible surface chemistry. Their capacity to form an interconnected network kept together by hydrogen bonds, nanocelluloses perform an unprecedented strengthening action towards cellulose and other fiber-based materials. Furthermore, nanocellulose use implies greener application procedures, such as deposition from water. The surface chemistry of nanocellulose plays a pivotai role in influencing the performance of the coating: tailored surface functionalization can introduce several properties, such as gas or grease barrier, hydrophobicity, antibacterial and anti-UV behavior. The early polymers industry was nearly completely bio-based and cellulose was one of the most important materials. Due to global awareness on the use of more green products, cellulose offers an alternative to petroleum-based products. It is expected that the results showing the explosion that nanocellulose technology is experiencing in current days will still bring more research on the topic and contribute to the expansion of nanocellulosic applications. This review summarizes recent achievements in the interesting emerging applications of nanocellulose in paint and coating industry evidencing critical aspects of coating performances related to deposition technique, nanocellulose morphology, and surface functionalization. Note de contenu : - CELLULOSE - NANOCELLULOSE AND ITS PROPERTIES : 1. Microfibrillated cellulose (MFC)/cellulose nanofibers (CNF) - 2. Cellulose nanocrystal (CNC) microcrystalline cellulose (MCC) - 3. Bacterial cellulose - APPLICATIONS OF NANOCELLULOSE IN PAINT AND COATING : 1. Protective coating - 2. Anticorrosion coating - 3. Self-healing coating - 4. Wood coating - 5. Paper coating - 6. Super hydrophobic coating - 7. Textile coating - 8. Edible coating - 9. Optical coating - 10. Iridescent coating - 11. Fire retardant coating - 12. Stretchable colorful coating - Table 1 : Different types of nancellulose - Table 2 : Summary of chemical modifications of nanocellulose for hydrophobic/superhydrophobic functions/applications En ligne : https://drive.google.com/file/d/1qj1mfCN41d3zkijQ4tSr57MF5UCiJX3d/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=40417 [article]

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Recent developments in the anti-graffiti coatings : an attentive review / Shweta Amrutkar in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 19, N° 3 (05/2022)  

[article]  inJOURNAL OF COATINGS TECHNOLOGY AND RESEARCH > Vol. 19, N° 3 (05/2022) . - p. 717-739 Titre : Recent developments in the anti-graffiti coatings : an attentive review Type de document : texte imprimé Auteurs : Shweta Amrutkar, Auteur ; Aarti Purushottam More, Auteur ; Siddhesh Mestry, Auteur ; Shashank T. Mhaske, Auteur Année de publication : 2022 Article en page(s) : p. 717-739 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Etudes comparatives Revêtements anti-graffitis Revêtements protecteurs Index. décimale : 667.9 Revêtements et enduits Résumé : An anti-graffiti coating (AGC) is a protective layer applied on the surface (all types including cultural heritage and metallics) to limit possible vandalism phenomena. AGCs are one of the elementary classes of coating materials, creating a barrier layer between substrate and graffiti, preventing the penetration of graffiti into the substrate and helping easy graffiti removal. AGC can be applied on porous and nonporous substrates, including concrete, mortar, stone, granite, metals, etc. AGCs are mainly classified as permanent, semi-permanent, and sacrificial. Sacrificial AGCs include waxes, polysaccharides, and polysiloxane, whereas permanent AGCs include fluorinated polymers, nanoparticles-based coating, silicon, and polyurethanes (PU). The use of hybrid polymers in AGCs containing silane or siloxane and fluoropolymers-based compounds with effective anti-graffiti (AG) properties is an introductory class in the future AGC market. Nowadays, nanotechnology is widely used in AG pretreatment. These polymer chemistries of AGCs find the application on historical walls, public places, trains, houses, etc. The present article focuses on various types of AGCs, their current market trends based on multiple chemistries, mechanisms, and their performance with the structure–property relationships. Note de contenu : - Polysaccharide-based AGCs - Waxes-based AGCs - Fundamental AGCs - Polyurethane (PU)-based AGCs - Acrylic-based AGCs - Fluorinated AGCs - PU-based fluorinated AGCs - Acrylic-based fluorinated AGCs - Silicon-based fluorinated AGCs - Miscellaneous fluorinated AGCs - Silicon-based AGCs - PU-based silicon AGCs - Acrylate-based silicon AGCs - Acrylic-PU silicon hybrid AGCs - Epoxy-based silicon AGCs - Miscellaneous silicon-based AGCs - Polymer composite-based AGCs - Table 1 : Summary of the types of AGC coatings and their advantages and disadvantages DOI : https://doi.org/10.1007/s11998-021-00580-z En ligne : https://link.springer.com/content/pdf/10.1007/s11998-021-00580-z.pdf Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=38068 [article]

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