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F-COMP - Functional COMPosites for the aeronautical industry / Anaïs Domergue in JEC COMPOSITES MAGAZINE, N° 140 (05-06/2021)
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Titre : F-COMP - Functional COMPosites for the aeronautical industry Type de document : texte imprimé Auteurs : Anaïs Domergue, Auteur Année de publication : 2021 Article en page(s) : p. 73-75 Langues : Anglais (eng) Catégories : Capteurs (technologie)
Caractérisation
Composants électriques et électroniques
Composites
Composites -- Propriétés mécaniques
Enrobage (technologie)
Intégration de fonctions
UsinageIndex. décimale : 668.4 Plastiques, vinyles Résumé : Within the framework of the F-COMP project, Naitec, Estia, Microlan and Hegan co-operated to develop a solution for embedding electronics in composites. Note de contenu :
- Background
- The solution
- Challenge
- Experiment
- Fig. 1 : F-COMP initial objectives
- Fig. 2 : Printed sensors on different substrates
- Fig. 3 : Embedding the sensors in composite
- Fig. 4 : Precision machining and abrasive water jet machining
- Fig. 5 : External connection of the sensor (external cables)
- Fig. 6 : Mechanical characterization of the functional composites
- Fig. 7 : F-COMP demonstratorPermalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=37000
in JEC COMPOSITES MAGAZINE > N° 140 (05-06/2021) . - p. 73-75[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 23112 - Périodique Bibliothèque principale Documentaires Disponible Facile synthesis of BaSO4@SiO2@TiO2 composites and its coating mechanism analysis / Guangyan Hu in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 20, N° 6 (11/2023)
[article]
Titre : Facile synthesis of BaSO4@SiO2@TiO2 composites and its coating mechanism analysis Type de document : texte imprimé Auteurs : Guangyan Hu, Auteur ; Shengming Jin, Auteur ; Kun Liu, Auteur Année de publication : 2023 Article en page(s) : p. 2045-2052 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Caractérisation
Composés inorganiques -- Synthèse
Composites
Dioxyde de silicium
Dioxyde de titane
Enrobage (technologie)
Sulfate de baryumIndex. décimale : 667.9 Revêtements et enduits Résumé : Herein, SiO2-coated BaSO4 powders were prepared by a liquid phase deposition method starting from inexpensive Na2SiO3, and a rutile TiO2 film was subsequently coated on the surface of SiO2 using TiOSO4 as the raw material. Under the optimum experimental conditions, the BaSO4@SiO2@TiO2 composite showed a refraction index of 1.90 and a whiteness of 92.4. The morphology of the cladding film showed that the composites were well dispersed with a small amount of agglomeration. X-ray diffraction (XRD) and transmission electron microscopy (TEM) analysis indicated that a uniform-coated layer of dense TiO2 film on the surface of BaSO4 particles was achieved by coating an amorphous SiO2 interlayer. The electron binding energy and relative intensity of Ti 2p, Si 2p, Ba 3d, and O 1s as a function of the coating process were obtained by X-ray photoelectron spectroscopy (XPS) analysis. The coating mechanism of SiO2 on the surface of the BaSO4 particles and the coating process of TiO2 on the surface of SiO2 were explored. SiO2 formed at the early stage of the reaction was coated on the surface of BaSO4 by electrostatic adsorption, and the TiO2 produced by hydrolysis at the later stage was coated on the surface of SiO2 by chemical bonding, generating Ti-O-Si bonds at the interface between SiO2 and TiO2 particles, as well as a continuous dense TiO2 film by continuing the condensation reaction. A simple process and inexpensive raw materials were employed to realize the facile synthesis of BaSO4@SiO2@TiO2 composites with good dispersion and high whiteness, greatly reducing the amount of TiO2 used and the production cost, which has important guiding significance for production within the coating industry. Note de contenu : - EXPERIMENTAL SECTION : Materials - Preparation of BaSO 4 @SiO 2 @TiO 2
- CHARACTERIZATION METHODS : X-ray diffraction analysis - Scanning electron microscopy investigation - Transmission electron microscopy analysis - X-ray photoelectron spectroscopy analysis
- RESULTS AND DISCUSSIONDOI : https://doi.org/10.1007/s11998-023-00800-8 En ligne : https://link.springer.com/content/pdf/10.1007/s11998-023-00800-8.pdf Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=40180
in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH > Vol. 20, N° 6 (11/2023) . - p. 2045-2052[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 24337 - Périodique Bibliothèque principale Documentaires Disponible Graphene-based polymer coatings for preventing marine corrosion : a review / Amit Sharma in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 20, N° 2 (03/2023)
[article]
Titre : Graphene-based polymer coatings for preventing marine corrosion : a review Type de document : texte imprimé Auteurs : Amit Sharma, Auteur ; Sumit Sharma, Auteur Année de publication : 2023 Article en page(s) : p. 413-432 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Anticorrosion
Enrobage (technologie)
Graphène -- Synthèse
GraphèneLe graphène est un cristal bidimensionnel (monoplan) de carbone dont l'empilement constitue le graphite. Il a été isolé en 2004 par Andre Geim, du département de physique de l'université de Manchester, qui a reçu pour cette découverte le prix Nobel de physique en 2010 avec Konstantin Novoselov. Il peut être produit de deux manières : par extraction mécanique du graphite (graphène exfolié) dont la technique a été mise au point en 2004, ou par chauffage d'un cristal de carbure de silicium, qui permet la libération des atomes de silicium (graphène epitaxié). Record en conduction thermique jusqu'à 5300 W.m-1.K-1. C'est aussi un matériaux conducteur.
Métaux -- Revêtements protecteurs
Protection cathodique
Revêtements antisalissures:Peinture antisalissures
Revêtements organiquesIndex. décimale : 667.9 Revêtements et enduits Résumé : In recent years, many breakthroughs in research on graphene as a corrosion-resistant coating for metal have been witnessed due to its excellent properties like chemical stability, mechanical strength, permeability, etc. The present review discusses graphene and its composite as an anticorrosive coating for marine applications. The economic and environmental losses caused by the corrosion in day-to-day life are large, and coatings are one of the preventive measures to reduce these losses. The corrosion gets accelerated when some significant factors like salinity, pH, water velocity, temperature, and dissolved oxygen content also come into picture. The excellent physical and chemical properties for graphene like high strength electrical conductivity, large surface area, etc., make it a potential candidate for a number of applications. The different techniques for the synthesis of graphene and its derivatives like graphene oxide and reduced graphene oxide have been also briefed in this review. The pure graphene coatings have shown excellent anticorrosive properties. However, defects in pure graphene coating have a substantial impact compared to multilayering for anticorrosive behavior. Graphene-based composites are more durable and reliable than pure graphene coating. The various techniques for the synthesis of graphene-based polymer coatings are solution mixing, melt mixing, and in situ polymerization. In the marine environment, graphene should be dispersed uniformly parallel to the metallic surface to provide excellent erosion corrosion properties. However, cathodic protection is a crucial issue in organic coatings, and zinc-rich graphene coatings are effective in case of defects in the coating. Other functional properties of graphene-based polymeric coatings like antifouling, hydrophobicity, better mechanical and wear properties, UV protection, and electrical conductivity give an edge to these coatings in marine conditions. Note de contenu : - MARINE CORROSION : Mechanism of corrosion - Factors triggering marine corrosion
- GRAPHENE AND ITS DERIVATIVES : Synthesis routes of graphene and its derivatives
- GRAPHENE AS AN ANTICORROSIVE COATING
- GRAPHENE COATING : CHALLENGES AND OPTIMIZATION MEASURES
- GRAPHENE COMPOSITE COATING : Synthesis route of graphene-based polymer coatings - Optimization measure for graphene-based composite coating - Graphene conductance and cathodic protection - Graphene composite coating as a functional coating
- FUTURE SCOPE
- Table 1: Various synthesis routes of GO
- Table 2 : Graphene-based composite coatingsDOI : https://doi.org/10.1007/s11998-022-00730-x En ligne : https://link.springer.com/content/pdf/10.1007/s11998-022-00730-x.pdf?pdf=button% [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=39289
in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH > Vol. 20, N° 2 (03/2023) . - p. 413-432[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 24056 - Périodique Bibliothèque principale Documentaires Disponible
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Titre : Greener decorative paints : Design the phases carefully for better results than fossil-fuel based binders Type de document : texte imprimé Auteurs : Willem-Jan Soer, Auteur ; Maud Kastelijn, Auteur ; Tijs Nabuurs, Auteur Année de publication : 2021 Article en page(s) : p. 40-44 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : acrylique, Acide L'acide acrylique ou acide acroléïque ou acide prop-2-énoïque est un composé organique de formule brute C3H4O2 et de formule semi-développée CH2=CHCOOH. C'est un acide carboxylique et un alcène vinylique, et se présente comme un liquide incolore à l'odeur âcre.
L'acide acrylique et ses esters, les acrylates, sont utilisés dans la fabrication de matières plastiques, dans les peintures acryliques et dans divers autres polyacryliques qui ont de multiples usages.
Biomatériaux
Chimie écologique
Copolymères
Enrobage (technologie)
Formulation (Génie chimique)
Liants en phase aqueuse
Polymères en émulsion
Revêtements décoratifs:Peinture décorativeIndex. décimale : 667.9 Revêtements et enduits Résumé : A growing need for more sustainable coatings leads to the exploration and use of new bio-based raw materials. Biorenewable raw materials have been widely used in coatings for a very long time, for instance in natural oil-based or alkyd coatings. In these, fatty acids, such as those derived from linseed oil, are polymerised by reacting polyols with polyacids via polycondensation. In the past alkyd resins were solvent-based : in recent years water-borne alternatives have been developed.
Although the gloss and appearance of this type of resins is excellent, water-borne alkyd resins do come with some shortcomings, such as dark yellowing and a relatively slow drying process compared to, for instance, polyacrylate- or polyurethane-based coatings.Note de contenu : - Measuring biological origin
- Changing technologies
- Our system
- The problem
- The solution
- Table 1 : Bio-based monomers used in multiphase copolymer emulsions, where in all experiments bath phases contain 5 % of acrylic acid (AA)
- Table 2 & 3 : Coating properties of bio-based copolymer emulsions described in Table 3, in a clear formulation
- Table 4 : Coating properties oF bio-based copolymer emulsions containing 5 % acrylic acid in the high Tg phase and 1 % of acrylic acid [EM7) and 5 % of acrylic acid (EMLI) in the low Tg phaseEn ligne : https://drive.google.com/file/d/1I9vQ0Wu07og1eQcNKsqD53-5ALs0Xj0s/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=35863
in EUROPEAN COATINGS JOURNAL (ECJ) > N° 4 (04/2021) . - p. 40-44[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 22750 - Périodique Bibliothèque principale Documentaires Disponible Highest flame resistance of lightweight composite materials based on basalt fibers / Volker Gatterdam in CHEMICAL FIBERS INTERNATIONAL, Vol. 72, N° 3 (09/2022)
[article]
Titre : Highest flame resistance of lightweight composite materials based on basalt fibers Type de document : texte imprimé Auteurs : Volker Gatterdam, Auteur ; Tobias Mader, Auteur ; Kristin Trommer, Auteur Année de publication : 2022 Article en page(s) : p. 150-152 Langues : Anglais (eng) Catégories : Enrobage (technologie)
Fibres de basalte -- Propriétés thermiques
IgnifugeantsComposé chimique utilisé pour réduire l'inflammabilité. Il peut être incorporé au produit durant sa fabrication ou appliqué ultérieurement à sa surface.
Revêtements inorganiques
Revêtements protecteurs
SiliconesLes silicones, ou polysiloxanes, sont des composés inorganiques formés d'une chaine silicium-oxygène (...-Si-O-Si-O-Si-O-...) sur laquelle des groupes se fixent, sur les atomes de silicium. Certains groupes organiques peuvent être utilisés pour relier entre elles plusieurs de ces chaines (...-Si-O-...). Le type le plus courant est le poly(diméthylsiloxane) linéaire ou PDMS. Le second groupe en importance de matériaux en silicone est celui des résines de silicone, formées par des oligosiloxanes ramifiés ou en forme de cage (wiki).
Textiles et tissus à usages techniquesIndex. décimale : 677.4 Textiles artificiels Résumé : Highly flame-resistant materials are an important factor in the modem construction and transportation sector when it cornes to safety for humans and animals, as well as for valuable goods. Within a ZIM cooperation project between Fulcoline and FILK, a flexible, high temperature-resistant and relatively lightweight composite material was developed consisting of a basalt-based fabric as reinforcing material and a silicone coating. The material combination of an inorganic textile substrate and an inorganic polymer would lead to the highest possible flame resistance of the composite, which in turn would bring relevance in using this newly developed material to match the criteria of DIN EN ISO 13501-1 class A2-s1 dO for construction parts and also the regulation FAR/JAR/CS-25.853 App. F Part I-IV
for Cargo Compartment Liners.Note de contenu : - Textile
- Coating
- Regulations
- Properties of composite material
- Areas of application
- Fig. 1 : Non-combustible basalt hybrid material in rolle-up condition
- Fig. 2 : Temperature profile at the back of a composite plate during the flammability test with a temperature load of 1000 °C at the other side of the material (SMC = Sheet Molding Compound)
- Table : Properties of the silicone basalt compositesEn ligne : https://drive.google.com/file/d/1LqaUC--73JXGbf66Z6kItVP3KJa46-Vl/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=38167
in CHEMICAL FIBERS INTERNATIONAL > Vol. 72, N° 3 (09/2022) . - p. 150-152[article]Réservation
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