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Geometry-independent surface finishing / Livia Carmen Wiedau in KUNSTSTOFFE INTERNATIONAL, Vol. 111, N° 4 (2021)
[article]
Titre : Geometry-independent surface finishing : Influence of chemical post-treatment on glass-filled polyamide 12 samples Type de document : texte imprimé Auteurs : Livia Carmen Wiedau, Auteur ; Anna Tarasova, Auteur ; Gerd Witt, Auteur Année de publication : 2021 Article en page(s) : p. 46-48 Langues : Anglais (eng) Catégories : Allongement à la rupture
Charges (matériaux)
Composites -- Propriétés mécaniques
Composites à fibres de verre
Frittage laser
Polyamide 12
Résistance à la traction
Rugosité
Traitement chimique
Verre
VitrificationIndex. décimale : 668.4 Plastiques, vinyles Résumé : In many technical applications, laser-sintered components still have inadequate surface topology. New methods of cost-effective and geometry-independent surface finishing of the laser-sintered specimens are therefore needed. Chemical post-treatment of laser-sintered PA12 components imparts enhanced mechanical characteristics as well as a reduction in roughness to ~85 %. Note de contenu : - Growing demand for post-treated additive manufacturing components
- Post-treatment methods
- Experimental setup
- Chemical post-treatment
- Surface roughness reduced
- Influence of process parameters and chemical post-treatment
- Fig. 1 : Elastic modulus and tensile strength of PA12
- Fig. 2 : Influence of post-treatment on glass-filled PA12
- Fig. 3 : Elastic modulus and tensile strength of glass-filled PA12
- Fig. 4 : Elongation at break of glass-filed PA12
- Table 1 : Process parameters for tensile specimens made of glass-filled and unfilled PA12En ligne : https://drive.google.com/file/d/13q7b0s0j42nY15AFCCp3a-dA711KyzII/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=35743
in KUNSTSTOFFE INTERNATIONAL > Vol. 111, N° 4 (2021) . - p. 46-48[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 22682 - Périodique Bibliothèque principale Documentaires Disponible
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Titre : Getting the ratio right : Case studies of latex paints formulations containing different pigment volume concentrations Type de document : texte imprimé Auteurs : Artur Palasz, Auteur Année de publication : 2022 Article en page(s) : p. 46-51 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Brillance (optique)
Carbonate de calciumLe carbonate de calcium (CaCO3) est composé d'un ion carbonate (CO32-) et d'un ion calcium (Ca2+), sa masse molaire est de 100,1 g/mole.
C'est le composant principal du calcaire et de la craie, mais également du marbre. C'est aussi le principal constituant des coquilles d'animaux marins, du corail et des escargots.
Charges (matériaux)
Concentration pigmentaire volumique
Formulation (Génie chimique)
Latex
Opacifiants
Revêtements:PeintureIndex. décimale : 667.9 Revêtements et enduits Résumé : Latex paint formulations nearly always contain ground calcium carbonate in two particle sizes. Yet, the particle size ratio in starter formulations usually differs. What does this ratio depend on and how should it be chosen ? Note de contenu : - Ground calcium carbonate
- Variants "2" and "5"
- Experimental
- 1ST stage : Extreme ratios yield greatest differences
- 2nd stage : Dirt pick-up, sheen and contrast ratio
- Least dirt pick-up for PVC/CPVC
- Sheen : Seeking dead matt
- Contrast ratio : no significant influence exerted by particle size
- Table 1 : Characteristics of paints prepared for the 1st stage of the study
- Table 2 : Characteristics of paints prepared for study in the 2nd stage
- Table 3 : Sheen on Penopac charts
- Table 4 : Hiding power at fixed spreading rateEn ligne : https://drive.google.com/file/d/1desmxlMQaf7E6fAsqA0WMhpocUenvqqL/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=38029
in EUROPEAN COATINGS JOURNAL (ECJ) > N° 9 (09/2022) . - p. 46-51[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 23594 - Périodique Bibliothèque principale Documentaires Disponible Glass flake in barrier coatings / Victoria Mirko in POLYMERS PAINT COLOUR JOURNAL - PPCJ, Vol. 207, N° 4632 (06/2017)
[article]
Titre : Glass flake in barrier coatings : Thinner grades of glass flake, as an alternative to conventional fillers, are discussed in this paper Type de document : texte imprimé Auteurs : Victoria Mirko, Auteur ; Simon Brigham, Auteur ; Charles Watkinson, Auteur Année de publication : 2017 Article en page(s) : p. 30-33 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Charges (matériaux)
Décollement cathodique (revêtement)
Epoxydes
Essais (technologie)
Matériaux -- Propriétés barrières
Paillettes
Polyesters
Résistance chimique
Revêtements protecteurs
Transmission de vapeur d'humidité
VerreIndex. décimale : 667.9 Revêtements et enduits Résumé : Glass flakes outperform traditional platelet-like fillers in corrosive and chemically aggressive environments. One of the main areas of glass flake application is barrier coatings where glass flakes are recommended for use as a replacement for MIO and other platelet-like fillers. Thinner grades of glass flake are feasible for application as an alternative to thicker grades. Moisture vapour transmission test and cathodic disbondment test results are used for the characterisation of coating performance.
Early glass flakes and coatings were somewhat crude. The flakes being hugely variable in thickness and plate size, the coatings being simple trowel or brush applied materials basically designed as a glass fibre composite layer but with glass flake substituting for fibres.
A lot of research has been done into the comparison of glass flake to alternative fillers in the 1980-90s but this was done when commercially available glass flake was still crude. Since then, the technology has evolved and in this article the authors analysed the feasibility of using thinner flake in barrier coatings.Note de contenu : - Morphology and chemical resistance
- Sacrificial and barrier protection
- Glass flake in barrier coatings
- Experimental
- Application areas
- Formulating with glass flake
- FIGURES : 1. SEM micrograph of 5µm glass flake produced by bubble method and SEM micrograph of 5µm glassflake Ltd glass flake produced by ITS rotary method - 2. MVT test on a bis-A epoxy with 2% wt granular filler and 2% wt glass flake - 3. SEM micrographs of cross section of an epoxy mastic coating with 10% wt aluminium pigments and with 10% wt glass flakes - 4. Cathodic disbondment radius of an epoxy mastic coating, with various concentrations of aluminium and glass pigments, measured over the perior of time (years) - 5. Cathodic disbondment of MIO and glass flake filled epoxy resin - 6. The results of a high temperature accelerated cathodic disbondment test carried out at 180°C with two different grades of glass flake - 7. MVT test for 5%m and 2.2µm glass flake filled polyester
- TABLES : 1. MVT tested in acordance with ASTM D1653 - 2. Cathodic disbondment tested to BS3900 - 3. Estimated applied cost of offshore coating systems - 4. Application areas for glass flake filled barrier coatingsEn ligne : https://drive.google.com/file/d/16HeVsyWa1g_dfI-b9rF8Xhy8Ov-Y3R_V/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=28772
in POLYMERS PAINT COLOUR JOURNAL - PPCJ > Vol. 207, N° 4632 (06/2017) . - p. 30-33[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 19040 - Périodique Bibliothèque principale Documentaires Disponible Graphene oxide/waterborne polyurethane nanocoatings : effects of graphene oxide content on performance properties / C. Bernard in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 17, N° 1 (01/2020)
[article]
Titre : Graphene oxide/waterborne polyurethane nanocoatings : effects of graphene oxide content on performance properties Type de document : texte imprimé Auteurs : C. Bernard, Auteur ; D. G. Goodwin, Auteur ; X. Gu, Auteur ; M. Celina, Auteur ; M. Nyden, Auteur ; D. Jacobs, Auteur ; L. Sung, Auteur ; T. Nguyen, Auteur Année de publication : 2020 Article en page(s) : p. 255-269 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Absorption
Adsorption
Caractérisation
Charges (matériaux)
Inflammabilité
Matériaux hybrides
Oxyde de graphène
Oxygène
Perméabilité
Polymères en émulsion
Polyuréthanes
Revêtements -- Propriétés mécaniques
Revêtements en phase aqueuse
Revêtements organiques
ThermocinétiqueIndex. décimale : 667.9 Revêtements et enduits Résumé : Graphene oxide (GO) is a good nanofiller candidate for waterborne coatings because of its outstanding physical and mechanical properties, good dispersibility in water, and low cost relative to graphene. Here, we report on the performance of a one-part, waterborne polyurethane (WPU) nanocoating formulated with four different GO loadings ([0.4% to 2.0%] by mass). The degree of GO dispersion/adhesion was evaluated using scanning electron microscopy, laser scanning confocal microscopy, and Raman microscopy. Nanocoating performance was evaluated using a dynamic mechanical thermal analyzer for mechanical properties, a customized coulometric permeation apparatus for oxygen barrier properties, a combustion microcalorimeter for flammability, a hot disk analyzer for thermal conductivity, thermogravimetric analysis for thermal stability, and a moisture sorption analyzer for water uptake. The results show that GO sheets were well dispersed in, and have good adhesion to, WPU. At the higher mass loadings ([1.2% or 2%] by mass), GO increased the modulus and yield strength of WPU by 300% and 200%, respectively, increased the thermal conductivity by 38%, reduced the burning heat release rate (flammability) by 43%, and reduced the oxygen permeability by up to sevenfold. The presence of GO, however, increased water vapor uptake at high humidity; the moisture content of 2% mass loading GO/WPU nanocoatings at 90% RH was almost twice that of the moisture content for unfilled WPU. Overall, with the exception of water uptake at very high humidity (> 70% RH), the observed improvements in physical and mechanical properties combined with the ease of processing suggest that GO is a viable nanofiller for WPU coatings. Note de contenu : - EXPERIMENTAL MATERIALS AND METHODS : Materials and preparation of GO/WPU nanocoatings - Characterization of GO/WPU nanocoating properties
- RESULTS AND DISCUSSION : Characterization of GO/WPU nanocoating dispersion quality - Mechanical properties - Oxygen permeability - Water sorption of GO/WPU nanocoatings at different relative humidity levels - Flammability - Thermal conductivityDOI : 10.1007/s11998-019-00267-6 En ligne : https://link.springer.com/content/pdf/10.1007/s11998-019-00267-6.pdf Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=33743
in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH > Vol. 17, N° 1 (01/2020) . - p. 255-269[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 21517 - Périodique Bibliothèque principale Documentaires Disponible Handbook of fillers / George Wypych / Toronto [Canada] : Chemical Tec Publishing (1999)
Titre : Handbook of fillers Type de document : texte imprimé Auteurs : George Wypych, Auteur Mention d'édition : Seconde édition Editeur : Toronto [Canada] : Chemical Tec Publishing Année de publication : 1999 Autre Editeur : New York [Etats-Unis] : Plastics Design Library Importance : XX-890 p. Présentation : ill. Format : 24 cm ISBN/ISSN/EAN : 978-1-895198-19-5 Note générale : Index Langues : Anglais (eng) Langues originales : Anglais (eng) Catégories : Charges (matériaux)
Matières plastiques -- AdditifsIndex. décimale : 668.4 Plastiques, vinyles Note de contenu : 1. Introduction
2. Sources of fillers, their chemical composition, properties, and morphology
3. Transportation, storage, and processing of fillers
4. Quality control of fillers
5. Physical properties of fillers and filled materials
6. Chemical properties of fillers and filled materials
7. Organization of interface and matrix containing fillers
8. The effect of fillers on the mechanical properties of filled materials
9. The effect of fillers on rheological properties of filled materials
10. Morphology of filled systems
11. effect of fillers on degradative processes
12. Environmental impact of fillers
13. Influence of fillers on performance of other additives and vice versa
14. Testing methods in filled systems
15. Fillers in commercial polymers
16. Fillers in materials combinations
17. formulation with fillers
18. Fillers in different processing methods
19. Fillers in different products
20. Hazards in filler usePermalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=567 Exemplaires (1)
Code-barres Cote Support Localisation Section Disponibilité 0964 668.4 WYP Monographie Bibliothèque principale Documentaires Exclu du prêt Hard minerals enhance powder coating performance / Kevin M. Biller in POLYMERS PAINT COLOUR JOURNAL - PPCJ, Vol. 212, N° 4673 (02/2022)
PermalinkHeat-conductive adhesives - cool solutions for versatile applications / Heiko Fauser in ADHESION - ADHESIVES + SEALANTS, Vol. 15, N° 3/2018 (2018)
PermalinkHeat transfer with plastics versus metals / Tobias Epple in KUNSTSTOFFE INTERNATIONAL, Vol. 111, N° 6 (2021)
PermalinkHigh heat performance / Iain Montgomery in POLYMERS PAINT COLOUR JOURNAL - PPCJ, Vol. 198, N° 4521 (02/2008)
PermalinkHigh performance alkyd paints based on platy kaolin for corrosion protection of steel / Hassan Salah Aly Emira in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 10, N° 2 (03/2013)
PermalinkPermalinkHigh-performance natural rubber/graphene composites from a uniquely designed physical and chemical hybrid-network / B.-L. Yu in INTERNATIONAL POLYMER PROCESSING, Vol. XXXV, N° 2 (05/2020)
PermalinkHigh performance protective coatings - V : Epoxy putty/filler and adhesives / Mukund Hulyalkar in PAINTINDIA, Vol. LXIV, N° 10 (10/2014)
PermalinkHigh-performance resins for pultruded composite profiles / Neil Gray in JEC COMPOSITES MAGAZINE, N° 73 (06/2012)
PermalinkHighly filled silicone for sealing headlights in ADHESION - ADHESIVES + SEALANTS, Vol. 14, N° 1/2017 (2017)
PermalinkHighly improved UV-shielding and mechanical properties of UV-curable epoxy acrylate nanocomposites by incorporating functionalized aramid nanofibers / Ying Wang in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 21, N° 1 (01/2024)
PermalinkPermalinkPermalinkImpact of extender minerals in UV varnish / Janet S. Preston in EUROPEAN COATINGS JOURNAL (ECJ), (11/2023)
PermalinkImpact-Resistant and Stiff at the Same Time / Simon Geier in KUNSTSTOFFE INTERNATIONAL, Vol. 101, N° 7 (07/2011)
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