Acrylic binders for optimal paint film structure with improved exterior durability / Francine Signoret in POLYMERS PAINT COLOUR JOURNAL - PPCJ, Vol. 203, N° 4588 (09/2013)  

[article]  inPOLYMERS PAINT COLOUR JOURNAL - PPCJ > Vol. 203, N° 4588 (09/2013) . - p. 36-39 Titre : Acrylic binders for optimal paint film structure with improved exterior durability Type de document : texte imprimé Auteurs : Francine Signoret, Auteur ; Marie Bleuzen, Auteur ; A. Trapani, Auteur Année de publication : 2013 Article en page(s) : p. 36-39 Langues : Anglais (eng) Catégories : Dioxyde de titane Durée de vie (Ingénierie) Encapsulation Liants Polyacryliques Revêtements en bâtiment:Peinture en bâtiment Revêtements organiques Index. décimale : 667.9 Revêtements et enduits Résumé : Reducing the repainting frequency of exterior coatings is a wish for most building owners, therefore, there is a continuous effort to develop longer lasting paints. A new family of pure acrylic binders has been designed to associate on to mineral particles present in a peint formulation, in particular Ti02 but also extenders, to space them optimally and offer a homogeneous peint film with superior exterior durability. Naturel exposure data in different climatic conditions confirm the benefits of this new binder technology, showing superior cheik resistance, gloss and colour retention and efflorescence resistance. The adsorption of these newly designed acrylic binders on to Ti02 pigment results, as well in a boost in hiding, which allows the paint formulator to reduce the pigment level and improve the sustainability profile of the paints. Note de contenu : - Superior durability of pure acrylic technology - Durability improvement with the pigment encapsulation technology - Exterior paints for wooden substrates En ligne : https://drive.google.com/file/d/1Sibq1i0YLk0maBkU71UMXROdP6qcTnNb/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=19318 [article]

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Advance of design and application in self-healing anticorrosive coating: a review / Shasha He in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 20, N° 3 (05/2023)  

[article]  inJOURNAL OF COATINGS TECHNOLOGY AND RESEARCH > Vol. 20, N° 3 (05/2023) . - p. 819-841 Titre : Advance of design and application in self-healing anticorrosive coating: a review Type de document : texte imprimé Auteurs : Shasha He, Auteur ; Yijian Gao, Auteur ; Xinghou Gong, Auteur ; Chonggang Wu, Auteur ; Hongyu Cen, Auteur Année de publication : 2023 Article en page(s) : p. 819-841 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Anticorrosifs Anticorrosion Encapsulation Nanoparticules Polymères Revêtement autoréparant Revêtements organiques Index. décimale : 667.9 Revêtements et enduits Résumé : As a significant method to inhibit metal corrosion by blocking the diffusion of corrosive mediums to the metal surface, the anticorrosion coating with a self-healing function can actively repair a damaged structure and improve the anticorrosion performance to better meet actual needs. In this study, “external aid” and “intrinsic triggering” self-healing coatings have been introduced in detail, including the preparation method, healing mechanism and practical applications. The healing of “external aid” is based on the addition components such as microcapsules containing healing agents and functional nanoparticles, whose ability of self-healing shows the independence with the coating resin. But the finitely additive amount may limit the sustainable use of “external aid” components, and the abundant fillers also change the basic physical properties of the coating. On the contrary, the “intrinsic triggering” resins can form the cover layer in the defects owing to the physical or chemical reactions between the polymer chains, along with the unlimited cycles theoretically. By contrast, the small defects or gaps can be repaired gradually through chain reactions, but the large areas of damage may need the quick release of healing additives in “external aid” coating. In this review, the advances of two kinds of self-healing coatings were analyzed to discuss the advantages and disadvantages of various healing technologies, and the challenges of development and prospects were also forecasted to provide useful ideas. Note de contenu : - EXTERNAL SELF-HEALING COATING :Microcapsule-based self-healing coating - Hollow network self-healing coating - Nanomaterials filled system - INTRINSIC SELF-HEALING MATERIAL : Self-healing based on reversible covalent bonds - Self-healing based on reversible noncovalent bonds DOI : https://doi.org/10.1007/s11998-022-00735-6 En ligne : https://link.springer.com/content/pdf/10.1007/s11998-022-00735-6.pdf?pdf=button% [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=39431 [article]

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Advancements in coatings industry to improve interior air quality / Gagandeep Khanuja in PAINTINDIA, Vol. LXVI, N° 5 (05/2016)  

[article]  inPAINTINDIA > Vol. LXVI, N° 5 (05/2016) . - p. 51-60 Titre : Advancements in coatings industry to improve interior air quality Type de document : texte imprimé Auteurs : Gagandeep Khanuja, Auteur ; Avishi Agarwal, Auteur Année de publication : 2016 Article en page(s) : p. 51-60 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Air intérieur Antimicrobiens Atmosphère -- Pollution -- Lutte contre Composés organiques volatils Encapsulation Formaldéhyde -- Elimination Peinture ionique Photocatalyse Réduction des composés organiques volatils Revêtements -- Additifs:Peinture -- Additifs Revêtements -- Industrie -- Aspect de l'environnement:Peinture -- Industrie -- Aspect de l'environnement Revêtements en phase aqueuse:Peinture en phase aqueuse Index. décimale : 667.9 Revêtements et enduits Résumé : In this paper, a review of the present status of the research and technological Advancements in the field of Coating industry to improve interior air quality is attempted. Indoor air quality, including that of dwellings, has become a question of environmental health in the same way as has happened with control of outdoor air quality and exposure at work. The adverse effects due to poor air quality in closed spaces affect a considerable number of people, since it has been shown that urban dwellers spend between 58 and 78% of their time in an indoor environment which is contaminated and so there is an urgent need to improvise upon the indoor air and thus enhance its quality. ln the following review, various advancements in coating industry to improve interior air quality are discussed in detail. The paper describes about the major contaminants of the indoor air pollution and how they affect the environment adversely. What are VOCs and how their emissions can be minimised to improve the interior air quality is also discussed. In addition to reduction of the emissions of VOCs special attention is paid to the technological advancennents such as formaldehyde abatement technology, encapsulation technology, ionic paint additive technology, anti-bacterial coatings, smoke and odor elimination coatings, air flow waterbome coatings, photocatalyst coating that remove and nninimize the already present indoorair contaminants and improve the interior air quality. Note de contenu : - Interior air quality - Causes of IAS problem - Major contaminants - Characteristic chemical pollutants - Effects of poor IAQ - Sick building syndrome (SBS) - Building related illness (BRI) - Multiple chemical sensitivity (MCS) - Advancements in coating industry to reduce the VOC emission from the coating industsry - The methods for reduction of VOC in the coating industry - Advancements in coating industry to reduce the presence of formaldehyde in the air - Advancements in coating industry through encapsulation (core & shell) technology - Advancements in coating industry for smoke and odour elimination - Advancements in coating industry to reduce mvoc(microbial volatile organic compounds) - Advancements in antibacterial/antimicrobial coatings - Advancements in coating industry through photocatalyst oxidation technology - Strong oxidation - Super hydrophobicity - Photocatalyst harmful degradation En ligne : https://drive.google.com/file/d/14Mg26NSn6i8KRSzY-mznDTxK0XhAxM5H/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=26843 [article]

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Alginate microparticles as carriers for the UV filter 2-ethylhexyl 4-methoxycinnamate : Influence on photostability / J. Duarte in INTERNATIONAL JOURNAL OF COSMETIC SCIENCE, Vol. 41, N° 6 (12/2019)  

[article]  inINTERNATIONAL JOURNAL OF COSMETIC SCIENCE > Vol. 41, N° 6 (12/2019) . - p. 585-593 Titre : Alginate microparticles as carriers for the UV filter 2-ethylhexyl 4-methoxycinnamate : Influence on photostability Type de document : texte imprimé Auteurs : J. Duarte, Auteur ; Isabel F. Almeida, Auteur ; M. Costa, Auteur ; E. S. Da Silva, Auteur ; J. L. Faria, Auteur ; José M. Sousa Lobo, Auteur ; Paulo Jorge Cardoso Costa, Auteur ; S. Scalia, Auteur Année de publication : 2019 Article en page(s) : p. 585-593 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Alginate de sodium L'alginate de sodium ou polymannuronate sodique, de formule NaC6H7O6 est un additif alimentaire (E401) utilisé dans les boissons, constitué d’alginate et de sodium. Il se présente sous forme de poudre blanche à blanc crème, inodore et sans saveur, très soluble dans l'eau. C'est une longue molécule extraite d'algues brunes, constituée d'unités de glucides reliées ensemble pour former une chaîne. Cosmétiques Encapsulation Octyl méthoxycinnamate Particules (matières) Peau -- Soins et hygiène Photostabilité Produits antisolaires Index. décimale : 668.5 Parfums et cosmétiques Résumé : - Objective : The organic ultraviolet UVB filter 2-ethylhexyl 4-methoxycinnamate (EHMC) was encapsulated in microparticles (MPs) of sodium alginate and co-loaded with vitamin E (Vit.E) by an extrusion process using an aerodynamically assisted jetting (AAJ) methodology. The aim was to assess the effect of encapsulation concerning UVB filter release from the MPs and its photochemical stability. - Methods : The EHMC photostability was analysed by exposing the samples (both MPs in aqueous dispersion and incorporated in a cream preparation) during 1 h to simulated solar light. For the MPs (empty-MP, EHMC-MP and EHMC + Vit.E-MP), the morphology and size were characterized ; while in the case of the encapsulated samples, the amount of EHMC-loading was determined. The release of EHMC was evaluated by adding EHMC-MP or EHMC + Vit.E-MP to 65% ethanol in water under mechanical stirring at 32°C. - Results : All MPs showed a homogeneous size distribution with a median of 90.5 ± 2.5 µm for EHMC-MP and 70.4 ± 1.14 µm for EHMC + Vit.E-MP. The encapsulation efficiency was 92.9% and 99.4% for EHMC-MP and EHMC + Vit.E-MP, respectively. The observed release from the MPs was lower than the dissolution of the pure UV filter. EHMC-MP and EHMC + Vit.E-MP were successfully incorporated into a cream formulation, with no evidence of phase separation or colour modification. Upon simulated light exposure, the photoisomerization/phototransformation of EHMC encapsulated in MPs and Vit.E-MP decreased as compared to free EHMC, both in aqueous dispersion and as a cream. The conformational ratio of the isomers (Z-/E-EHMC) was found to be the lowest in the presence of Vit.E. - Conclusion : This work demonstrates that use of these alginate microparticulate carriers could enhance the effectiveness of sunscreen preparations containing this UVB filter. Note de contenu : - MATERIALS AND METHODS : materials - Microparticles production - Microparticles freeze drying - EHMC assay - Microparticles characterization - Cream preparation - Photostability - Statistical analysis - RESULTS AND DISCUSSION : Microparticles characterization DOI : 10.1111/ics.12578 En ligne : https://drive.google.com/file/d/1vdfA1ng0cfaEgKvHauMvWo7OC225Zq7X/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=33667 [article]

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Alternative methods for transferring mosquito repellent capsules containing bio-based citronella oil to upholstery fabrics: coating and printing / Merih Sariisik in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 19, N° 1 (01/2022)  

[article]  inJOURNAL OF COATINGS TECHNOLOGY AND RESEARCH > Vol. 19, N° 1 (01/2022) . - p. 323–336 Titre : Alternative methods for transferring mosquito repellent capsules containing bio-based citronella oil to upholstery fabrics: coating and printing Type de document : texte imprimé Auteurs : Merih Sariisik, Auteur ; Gülsah Ekin kartal, Auteur ; Gökhan Erkan, Auteur ; Sadi Etkeser, Auteur Année de publication : 2022 Article en page(s) : p. 323–336 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Ameublement Citronnelle Coacervation La coacervation est un phénomène colloïdal qui implique la diminution de solubilté d'un polymère dans un solvant par addition de quantité importante de différents composés : un alcool, un deuxième polymère plus soluble ou un sel (sulfate de sodium). Les molécules de polymère qui sont désolvatées coalescent et forment des gouttelettes, dites gouttelettes de coacervat. Si la coacervation se fait dans un milieu ou il y a deux phases, les gouttelettes de coacervat se regroupent à l'interface créant ainsi une membrane. Il suffit alors de durcir la membrane, de la rendre plus résistante par des réactions de crosslinking entre les molécules de polymère. Coacervation simple : La coacervation est déclenchée par addition d'un alcool concantré, par exemple de l'éthanol à 50% ou du sulfate de sodium Coacervation complexe : La coacervation complexe repose sur le même principe que la coacervation simple excepté que : le polymère en solution dans la phase continue est un polymère chargé, un deuxième polymère est utilisé pour modifier le solubilité du premier. Ce deuxième polymère porte une charge opposée à celle du premier. Encapsulation Enduction textile Ethylcellulose Insecticides Matériaux -- Imprégnation Microcapsules Morphologie (matériaux) Moustiques Textiles et tissus Index. décimale : 667.9 Revêtements et enduits Résumé : The aim of this study was to prepare insect repellent textiles and compare the application methods. Bio-based insect repellent agent citronella oil was encapsulated with ethyl cellulose shell with coacervation method. Morphological assessment showed that capsules had smooth surfaces and their shape was spherical. The homogenous size distribution of the capsules was supported and the mean particle size of the optimum formulations was almost 50 μm. Outdoor upholstery fabrics were treated with citronella capsules by coating and printing to compare the application methods. After application, the insecticide effects of the fabrics were investigated and compared with the impregnation method. Insecticide activity was evaluated against common house mosquitoes (Culex pipiens), with respect to cone bioassay of World Health Organization. Mosquitoes tended to stay away from treated fabrics, and mortality rates of mosquitos were noted as 72, 65 and 55% for printing, coating and impregnation, respectively, and the fabrics still showed repellency after five washing cycles. This study showed that the developed product might be used as an alternative to the other products in the market for avoiding mosquito-borne diseases and these results showed that capsules can be transferred by printing and coating processes when compared with the impregnation method. Note de contenu : - EXPERIMENTAL : Materials - Preparation of the microcapsules - Mass yield of microcapsule - Particle morphology of microcapsules - Particle size of microcapsules - Fourier transform infrared spectrophotometer (FTIR) analysis - Thermogravimetric analysis (TGA) - Application of the microcapsules to the outdoor upholstery fabrics - Evaluation of treated fabrics - RESULTS AND DISCUSSION : Mass yield of microcapsules - Particle morphology of microcapsules - Particle size of microcapsules - Fourier transform infrared spectrophotometer (FTIR) analysis - Thermogravimetric analysis (TGA) - Evaluation of treated fabrics - Table 1 : Capsule transfer prescription for printing method - Table 2 : Capsule transfer prescription for coating method - Table 3 : Capsule transfer prescription for impregnation method - Table 4 : Mass yield of microcapsules - Table 5 : SEM photomicrographs of outdoor upholstery fabrics treated with citronella capsules with no wash, after 5 washing cycles and after rubbing - Table 6 : The ion chromatogram of citronella oil and GC-MS diagrams of outdoor upholstery fabrics treated with citronella capsules with no wash and after 5 washing cycles - Table 7 : Citronella amount in the samples as a result of GC-MS analysis - Table 8 : m2 weight changes of samples before and after washing - Table 9 : Insect repellent effect results of samples - Table 10 : Dimensional change percentage for fabrics - Table 11 : Fastness test results of capsule-transferred fabrics containing citronella - Table 12 : Color measurements of fabrics DOI : https://doi.org/10.1007/s11998-021-00529-2 En ligne : https://link.springer.com/content/pdf/10.1007/s11998-021-00529-2.pdf Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=37161 [article]

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Aluminum pigments encapsulated by inorganic-organic hybrid coatings and their stability in alkaline aqueous media / Li-Jun Li in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 5, N° 1 (03/2008)  

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Améliorer l'action des protecteurs biologiques grâce aux bicosomes / Martha Vàzquez-Gonzàlez in EXPRESSION COSMETIQUE, N° Hors série (12/2017)  

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Amphiphilic hyperbranched polymers : synthesis, characterization and self-assembly performance / Ren Longfang in JOURNAL OF LEATHER SCIENCE AND ENGINEERING, Vol. 2 (Année 2020)  

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An approach to mimic nature by self-healing - a boon to achieve material durability / Trisha Kaushik in PAINTINDIA, Vol. LXXII, N° 9 (09/2022)  

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An overview of the science and art of encapsulated pigments : Preparation, performance and application / Benjamin Tawiah in COLORATION TECHNOLOGY, Vol. 138, N° 3 (06/2022)  

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Anticorrosion healing properties of epoxy coating with poly(urea–formaldehyde) microcapsules encapsulated linseed oil and benzotriazole / Gan Cui in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 20, N° 6 (11/2023)  

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Anticorrosion hybrid nanocomposite coatings with encapsulated organic corrosion inhibitors / Azam Rahimi in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 12, N° 3 (05/2015)  

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Anticorrosive behavior study by localized electrochemical techniques of sol–gel coatings loaded with smart nanocontainers / C. Zea in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 14, N° 4 (07/2017)  

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Antimicrobial leather : preparation, characterization and application / Wang Zhiyuan in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 97, N° 4 (07-08/2013)  

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Antimicrobial textiles / Gang Sun / Cambridge [United Kingdom] : Woodhead Publishing Ltd (2016)

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Application of microencapsulated essential oils in cosmetic and personal healthcare produc - a review / I. T. Carvalho in INTERNATIONAL JOURNAL OF COSMETIC SCIENCE, Vol. 38, N° 2 (04/2016)  

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Automated adhesive dosing reduces unit costs / Guido Hamel in ADHESION - ADHESIVES + SEALANTS, Vol. 16, N° 3/2019 (2019)  

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Biodegradable polymers as encapsulation materials for cosmetics and personal care markets / Anne Ammala in INTERNATIONAL JOURNAL OF COSMETIC SCIENCE, Vol. 35, N° 2 (04/2013)  

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Capsule / Jacques Sebag in EXPRESSION COSMETIQUE, N° 60 (11-12/2019)  

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Les capsules deviennent 100 % cosmétiques / Hervé Huilier in EXPRESSION COSMETIQUE, N° 23 (09-10/2013)  

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