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F-COMP - Functional COMPosites for the aeronautical industry / Anaïs Domergue in JEC COMPOSITES MAGAZINE, N° 140 (05-06/2021)
[article]
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 Fabrication additive de pièces polymères et composites de grandes tailles / Jérémie Soulestin in PLASTIQUES & CAOUTCHOUCS MAGAZINE, N° 955 (03/2019)
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Titre : Fabrication additive de pièces polymères et composites de grandes tailles Type de document : texte imprimé Auteurs : Jérémie Soulestin, Auteur ; Marie-France Lacrampe, Auteur ; Sébastien Charlon, Auteur Année de publication : 2019 Article en page(s) : p. 56-59 Langues : Français (fre) Catégories : Composites
Impression tridimensionnelle
Matières plastiquesIndex. décimale : 668.4 Plastiques, vinyles Résumé : Impression 3D : IMT Lille Douai présente la plateforme Lascala développée en interne pour fabriquer des pièces de grandes tailles. Note de contenu : - Dépose de polymère fondu
- Technologie de dépose
- Environnement de fabrication
- Pilotage de la plateforme
- Et demain ?
- Figures : Représentations schématiques de dépôts de joncs cylindriques et de rubans ainsi que des nouvelles opportunités d'associations de matériaux apportées par l'outillage développé pour la plateforme LascalaEn ligne : https://drive.google.com/file/d/1AMwJ4CC5nY-xPhuc-hc9zdQm4ZHaj-At/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=31904
in PLASTIQUES & CAOUTCHOUCS MAGAZINE > N° 955 (03/2019) . - p. 56-59[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 20670 - Périodique Bibliothèque principale Documentaires Disponible Fabrication of graphene-coated poly(glycidyl methacrylate) microspheres by electrostatic interaction and their application in epoxy anticorrosion coatings / Meng Li in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 18, N° 2 (03/2021)
[article]
Titre : Fabrication of graphene-coated poly(glycidyl methacrylate) microspheres by electrostatic interaction and their application in epoxy anticorrosion coatings Type de document : texte imprimé Auteurs : Meng Li, Auteur ; Yiyi Li, Auteur ; Jiatian Zhang, Auteur ; Dandan Zhang, Auteur ; Jie Li, Auteur ; Kaibin He, Auteur ; Yiting Xu, Auteur ; Birong Zeng, Auteur ; Lizong Dai, Auteur Année de publication : 2021 Article en page(s) : p. 383–396 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Anticorrosifs
Anticorrosion
Caractérisation
Composites
Epoxydes
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.
Polyméthacrylate de glycidyle
Revêtements organiques
Revêtements protecteursIndex. décimale : 667.9 Revêtements et enduits Résumé : The uneven dispersion of graphene in the resin matrix hinders its application in anticorrosion coatings. This study reports a new method where graphene oxide (GO) is coated on the surface of the poly(glycidyl methacrylate) (PGMA) microspheres to promote the dispersion of GO in epoxy resin (EP) to improve the anticorrosion performance of EP. GO-coated PGMA microspheres (PGMA@GO) were successfully fabricated by electrostatic interaction, which was confirmed by Fourier transform infrared spectroscopy, X-ray diffraction, Raman spectroscopy, transmission electron microscopy, and zeta potential analysis. The scanning electron microscopy results showed that the PGMA microspheres were uniformly coated with GO, when the weight ratio of PGMA@GO was 1:2 (PGMA: GO). Electrochemical impedance spectroscopy and salt immersion experiments were performed to evaluate the corrosion resistance of the EP composite coatings. Comparing with pure EP and GO/EP coatings, the mechanical properties and anticorrosion properties of coatings were improved after adding PGMA@GO. When the addition amount of PGMA@GO (of 50 g EP) was 1.0 wt% and about 0.67 wt% GO was only needed, the PGMA@GO/EP composite coating possessed a high impedance of 5.68 × 108 Ω cm2 and a low breakpoint frequency of 0.39 Hz for 21-day immersion in 3.5 wt% NaCl solution. The anticorrosion mechanism of PGMA@GO/EP composite coating was also discussed. Note de contenu : - EXPERIMENTAL : Materials - Characterizations - Functionalization of graphene oxide - Preparation of PGMA@GO/EP composite coating
- RESULTS AND DISCUSSION : Structural properties of PGMA@GO - The optimal weight ratio of PGMA@GO - Characterization of PGMA@GO/EP and GO/EP composite coating - Anticorrosion performance of PGMA@GO/EP and GO/EP composite coating - Anticorrosion mechanism of PGMA@GO/EP composite coating
- Table 1 : Main recipes of the anticorrosion composite coatings
- Table 2 : Zeta potentials of GO, PGMA, CTAB, PGMA–CTAB, and PGMA@GO (1:2) in deionized water
- Table 3 : Low frequency impedance (|Z|0.01Hz) of EP, 1.0% PGMA/EP, 0.5% GO/EP, 1.0% GO/EP, 1.5% GO/EP, 2.0% GO/EP, 0.5% PGMA@GO/EP, 1.0% PGMA@GO/EP, 1.5% PGMA@GO/EP, and 2.0% PGMA@GO/EP composite coatings during different immersion times in 3.5 wt% NaCl solution
- Table 4 : Breakpoint frequency (fb) of the composite coatings with different additivesDOI : https://doi.org/10.1007/s11998-020-00409-1 En ligne : https://link.springer.com/content/pdf/10.1007/s11998-020-00409-1.pdf Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=35602
in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH > Vol. 18, N° 2 (03/2021) . - p. 383–396[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 22701 - Périodique Bibliothèque principale Documentaires Disponible Facile fabrication of fluorine–silicon-containing poly (styrene–acrylate)/SiO2 hydrophobic composites by combining physically mixing and sol–gel process / Lingyun Ye in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 16, N° 5 (09/2019)
[article]
Titre : Facile fabrication of fluorine–silicon-containing poly (styrene–acrylate)/SiO2 hydrophobic composites by combining physically mixing and sol–gel process Type de document : texte imprimé Auteurs : Lingyun Ye, Auteur ; Guanhao Ma, Auteur ; Shaona Zheng, Auteur ; Xiangxuan Huang, Auteur ; Lili Zhao, Auteur ; Hongbin Luo, Auteur ; Wenbo Liao, Auteur Année de publication : 2019 Article en page(s) : p. 1243-1252 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Composites
Copolymère styrène acrylate
Dioxyde de silicium
Fluor
Gel de silice
Hydrophobie
Sol-gel, Procédé
Stabilité thermiqueIndex. décimale : 667.9 Revêtements et enduits Résumé : Novel hydrophobic composites (FS-PSA/SiO2) were prepared by directly physically mixing fluorine–silicon-containing poly (styrene–acrylate) latexes (FS-PSA) with colloidal silica. Sol–gel processes were carried out between silica particles and silanol groups on the surface of poly (styrene–acrylate) latexes to enhance the roughness and hydrophobicity of composite films. TEM photos revealed that FS-PSA latexes exhibited a clear core–shell structure, and the intermolecular hydrogen bonding guaranteed the uniform dispersion of silica particles. The average diameter data indicated that the copolymerization and sol–gel process had all increased the average diameter of the composite latexes. FTIR and XPS spectra confirmed that two kinds of Si–O bonds existed in the composite films, of which one was related to the Si–O groups of colloidal silica while the other was related to the Si–O–Si groups obtained from the sol–gel processes. SEM and AFM images revealed that the sol–gel processes had increased the roughness of the composite films. The water contact angle (WCA) of the composite films were found to increase with the copolymerization and sol–gel processes. Thermogravimetric analysis (TGA) curves demonstrated that the FS-PSA/SiO2 composite films exhibited much better thermal stability than the PSA and FS-PSA films. Note de contenu : - EXPERIMENTAL : Materials - Preparation of poly(styrene-acrylate) (PSA) and fluorine-silicone-containing poly(styrene-acrylate) materials (FS-PSA) - Preparation of FS-PSA/SiO2 composites
- RESULTS AND DISCUSSION : The preparation of the FS-PAS and FS-PAS/SiO2 composites - The chemical structure - The surface wetting property and surface morphology - Formation mechanism of composite films - The thermal stabilityDOI : 10.1007/s11998-019-00198-2 En ligne : https://link.springer.com/content/pdf/10.1007%2Fs11998-019-00198-2.pdf Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=33008
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Code-barres Cote Support Localisation Section Disponibilité 21154 - 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
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