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Intercalated polybenzoxazine/organoclay composites with enhanced performance in corrosion resistance / Changlu Zhu in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 13, N° 1 (01/2016)
[article]
Titre : Intercalated polybenzoxazine/organoclay composites with enhanced performance in corrosion resistance Type de document : texte imprimé Auteurs : Changlu Zhu, Auteur ; Xin Lu, Auteur ; Zhong Xin, Auteur ; Yanfeng Zhang, Auteur Année de publication : 2016 Article en page(s) : p. 63-72 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Anticorrosion
Argile
Charges (matériaux)
Montmorillonite
Polybenzoxazine
Revêtements protecteursIndex. décimale : 667.9 Revêtements et enduits Résumé : Organoclays modified by two different pillaring agents were introduced in polybenzoxazine (PBz) coatings on mild steel (MS). Both physicochemical properties and corrosion protection performance of composite coatings were fully investigated with the assistance of FTIR, XRD, AFM, SEM, and electrochemical measurements. The octadecyl quaternary ammonium-modified organoclays exhibited an exfoliated structure in polymer matrix, which benefited little in coatings’ barrier property. However, organoclays modified by dimethyl dioctadecyl quarternary ammonium induced an intercalated structure in composites, which greatly enhanced the corrosion resistance of poly(BA-aptms) with corrosion rate reduced by 3 and 4 orders of magnitude, respectively, compared to PBz and bare MS when 3 wt% of organoclays were added. DOI : 10.1007/s11998-015-9722-z En ligne : https://link.springer.com/content/pdf/10.1007%2Fs11998-015-9722-z.pdf Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=25372
in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH > Vol. 13, N° 1 (01/2016) . - p. 63-72[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 17819 - Périodique Bibliothèque principale Documentaires Disponible Introduction to 3M ceramic microspheres - Characteristics, benefits & applications / B. Arun in PAINTINDIA, Vol. LXXI, N° 3 (03/2021)
[article]
Titre : Introduction to 3M ceramic microspheres - Characteristics, benefits & applications Type de document : texte imprimé Auteurs : B. Arun, Auteur Année de publication : 2021 Article en page(s) : p. 160-162 Langues : Anglais (eng) Catégories : Brillance (optique)
Charges (matériaux)
Coût -- Contrôle
Formulation (Génie chimique)
Matériaux -- Propriétés barrières
Matériaux céramiques
Microsphères
Résistance au brunissement
Revêtements -- Séchage sous rayonnement ultraviolet
Revêtements:Peinture
ViscositéIndex. décimale : 667.9 Revêtements et enduits Résumé : 3M White Ceramic Microspheres are unique, semi-transparent, white-colored, fine particle size, high-strength typically used to reduce VOC levels ; increase filler loadings ; improve hardness ; and add burnish, scrub and abrasion resistance to a variety of coating formulations. Due to the ceramic chemistry of these products, they are also UV transparent down to 250 nm and have utility in radiation-curable and thin-film powder coatings. Note de contenu : - 3M ceramic microspheres white grades : Formulating information - Eight ways to help you reduce costs while enhancing the performance : 1. Lower viscosity and improved flow - 2. Higher filler loading to reduce costs - 3. Burnish resistance and hardness - 4. Gloss control - 5. Barrier effect - 6. Inert and contain no crystalline silica - 7. Radiation curable coatings - 8. Standard equipment - Value proposition
- Table : Application benefitsEn ligne : https://drive.google.com/file/d/18VpXFLkKOzD-Mp8SLTBAL2ZvX3qa305T/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=35953
in PAINTINDIA > Vol. LXXI, N° 3 (03/2021) . - p. 160-162[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 22767 - Périodique Bibliothèque principale Documentaires Disponible Investigating the effect of glass flakes on performance of high-build epoxy coating for splash zone application / Nirmalya Dey in POLYMERS PAINT COLOUR JOURNAL - PPCJ, Vol. 212, N° 4674 (04/2022)
[article]
Titre : Investigating the effect of glass flakes on performance of high-build epoxy coating for splash zone application Type de document : texte imprimé Auteurs : Nirmalya Dey, Auteur ; Dhembare Dhembare, Auteur Année de publication : 2022 Article en page(s) : p. 16-22 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Adhésion
Anticorrosifs
Anticorrosion
Charges (matériaux)
Epoxydes
Formulation (Génie chimique)
Métaux -- Revêtements protecteurs
Particules (matières)
Peinture -- Propriétés physiques
Revêtements -- Propriétés mécaniques:Peinture -- Propriétés mécaniques
Revêtements organiques
Rhéologie
Test d'immersion
Verre
ViscositéIndex. décimale : 667.9 Revêtements et enduits Résumé : Glass flake epoxy coatings are most commonly used to protect splash zone areas of offshore assets. The splash zone area is a highly corrosive area due to exposure to the wet and dry atmospheric cyclic process. In addition, splash zones and heavy-duty decks also experience high impact and abrasion which can cause faster loss of integrity of non-glass flake coatings. Glass flakes (GF) impart unique properties to epoxy coatings when compared with traditional or granular fillers. Level of loading and aspect ratio of GF in the formulation has a critical effect on coating performance. Hence, high level of caution needs to be taken while choosing GF, considering its particle size and thickness. In this paper, the changes in physical, mechanical, barrier and anticorrosion properties with variation of type and dosage of GF in high-build pigmented epoxy coatings for splash zone areas, are investigated. Electrochemical impedance spectroscopy (E15) and water vapour transmission (WVT) tests were used for checking performance of coatings related to barrier protection. The results of EIS correlate well with those of WVT rate measurement and the SEM images were found to be helpful for understanding the GF orientation in the matrix. From the whole study it was concluded that the GF of higher flake size and aspect ratio and at 10% loading level in the coating formulation give the best barrier property, whereas GF with lower flake size and aspect ratio and at 10% loading level give the best corrosion resistance, mechanical strength and physical properties like viscosity build up and sag resistance. The valuable information derived from these experiments is expected to generate better insight into the influence of GF types and their loading level on performance parameters of high-build epoxy coatings. Note de contenu : - INTRODUCTION : Why GF ? - Chemistry of GF - Type of glass
- EXPERIMENTAL : Materials - Methods - Surface morphology of paint fils by SEM - Physical properties of liquid paints samples - Mechanical properties - Barrier properties - Chemical immersion test - Corrosion resistance
- RESULTS AND DISCUSSION : Surface morphology of GF in the epoxy coating by SEM - Physical properties of liquid paint - Results of mechanical test of the dried coating - Evaluation of barrier properties - Result of immersion resistance and corrosion resistance
- Table 1 : Physical characteristics of resins
- Table 2 : Physical and chemical properties of different glass flakes
- Table 3 : Formulation parameters of 2K splash zone epoxy coating
- Table 4 : Percentage of GF used in experiments
- Table 5 : Viscosity measured by penetrometer
- Table 6 : Effect of GF on sag resistance of coating
- Table 7 : Initial pull off adhesion value
- Table 8 : Weight loss in abrasion resistance test
- Table 9 : Weight loss in water vapour transmission test
- Table 10 : Impedance reading of experimentsEn ligne : https://drive.google.com/file/d/1rEbykEosuPfh2BYnL3KSsBRwdxYew7Zn/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=37389
in POLYMERS PAINT COLOUR JOURNAL - PPCJ > Vol. 212, N° 4674 (04/2022) . - p. 16-22[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 23336 - Périodique Bibliothèque principale Documentaires Disponible Investigation of effect of type of pigment/extender on the stability of high pigment volume concentration water-based architectural paint / Ritesh A. Bhavsar in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 19, N° 3 (05/2022)
[article]
Titre : Investigation of effect of type of pigment/extender on the stability of high pigment volume concentration water-based architectural paint Type de document : texte imprimé Auteurs : Ritesh A. Bhavsar, Auteur ; Avinash Sardesai, Auteur Année de publication : 2022 Article en page(s) : p. 919-930 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Caractérisation
Charges (matériaux)
Concentration pigmentaire volumique
Diluants
Dispersions et suspensions -- Stabilité
Floculation
Pigments inorganiques
Potentiel zeta
Revêtements en bâtiment:Peinture en bâtiment
Revêtements en phase aqueuse -- Additifs:Peinture en phase aqueuse -- Additifs
Revêtements organiquesIndex. décimale : 667.9 Revêtements et enduits Résumé : This article elucidates the effect of type of pigment/extenders viz. titanium dioxide (TiO2), magnesium silicate (steatite), calcium carbonate, dolomite, precipitated sodium magnesium aluminosilicates, hydrated and calcined aluminum silicates (kaolin) when used alone or in combination in the paint dispersions on their sedimentation stability. Accelerated heat age stability test was conducted as per ASTM D 1849. Wettability of pigment extenders were measured in terms of their contact angle using Washburn technique. Rheology viscosity curve and oscillatory amplitude sweep test are carried out to depict the structural properties, more precisely the extent of flocculation in the paint dispersion. From rheology viscosity curve, extent of residual flocculation is determined using Asbeck extrapolation method. Extent of total flocculation in the paint dispersion is estimated from cohesive energy density (Ec) using oscillatory amplitude sweep test. Energy of separation of particles in flocs (Esep) is also determined using yield point measurement. Attempt was made to correlate extent of flocculation present in paint dispersion with settling and syneresis observed during accelerated heat age stability test. It is observed that, the paint dispersions based on only TiO2, only hydrous kaolin and only precipitated sodium magnesium aluminosilicates are found to be quite stable whereas the dispersions based on only magnesium silicates and only calcined kaolin are found to be unstable. Paint dispersions based on carbonate extenders show syneresis and soft settling which is easily mixable. From the rheological study, it is identified that Ec is the most crucial parameter that correlates very well with the accelerated heat age stability test results of paint dispersion. Note de contenu : - EXTENT OF FLOCCULATION : Investigation of degree of residual flocculation using Asbeck extrapolation method - Energy of separation between the particles in a flocs (E sep) - Cohesive energy density (E c)
- EXPERIMENTAL WORK : Materials - Preparation of dispersion - Characterization
- RESULTS AND DISCUSSION : Effect of type of pigment/extenders on the stability of high PVC interior paint - Powder wettability - Rheological characterization - Effect of varying ratio of unstable to stable pigment and extenders on the stability of Paint-1
- Table 1 : Physico-chemical properties of pigments and extenders used in paint dispersion
- Table 2 : Key formulation ingredients of high PVC interior paint-1 and their respective experiments with individual pigment/extender at same volume solid content
- Table 3 : Summary of pH, zeta potential, stormer viscosity of paint dispersions before and after accelerated heat age stability test
- Table 4 : Material constant and powder contact angle with DI water and surfactant solution
- Table 5 : Infinite shear viscosity (η∞) and the extent of residual flocculation (m) as computed from Asbeck model, yield point (τ0) and energy of separation of particles in floccs (Esep), viscoelastic parameter G′ and critical strain (Υc) and cohesive energy density (Ec) is summarizedDOI : https://doi.org/10.1007/s11998-021-00568-9 En ligne : https://link.springer.com/content/pdf/10.1007/s11998-021-00568-9.pdf Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=38086
in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH > Vol. 19, N° 3 (05/2022) . - p. 919-930[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 23605 - Périodique Bibliothèque principale Documentaires Disponible Investigation of high penetration and dispersion of functional nanoparticles in leather / Zhou Ji-Bo in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. CXVIII, N° 9 (09/2023)
[article]
Titre : Investigation of high penetration and dispersion of functional nanoparticles in leather Type de document : texte imprimé Auteurs : Zhou Ji-Bo, Auteur ; Nan Sun, Auteur ; Xue-pin Liao, Auteur ; Bi Shi, Auteur Année de publication : 2023 Article en page(s) : p. 386-395 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Charges (matériaux)
Cuirs et peaux -- Propriétés mécaniques
Matériaux -- Propriétés fonctionnelles
Nanoparticules
Pénétration (physique)
Polyacryliques
RetannageIndex. décimale : 675 Technologie du cuir et de la fourrure Résumé : The use of nanoparticle-based functional leather products has stimulated sustainable growth of the conventional leather industry. However, functional nanoparticles (FNPs) face challenges to be well penetrated and dispersed in leather because of their aggregation and mismatch charges with leather. In this study, the acrylic resin (AR) retanning agent, which was originally utilized in leather processing, was applied for the modification of FNPs. It has been demonstrated that AR can improve the electrostatic and steric repulsion among nanoparticles, inhibiting their aggregation and ensuring their penetration and dispersion in leather. Because of the limitation of leather porosity, the maximum loading amount for FNPs was about 40wt% (based on leather weight). The leather got higher results in fullness, thickening ratio, and tensile strength when the loading amount of FNPs was 11.25%. Moreover, the proposed approach in this study can be used well for other types of FNPs loaded in leather, suggesting its broad applicability. Note de contenu : - MATERIALS AND METHODS : Materials - Modification of FNPs - Physicochemical properties of modified FNPs - Penetration of modified FNPs in leather - Effect of different factors on the penetration of FNPs in leather - Influence of FNPs on the mechanical performance of leather
- RESULTS AND DISCUSSION : Basic properties of modified FNPs - Analysis of the dispersibility of modified Gd2O3FNPs in water - Penetration of pristing/modified FNPs in leather - Effect of different factors on the penetration and dispersion of modified FNPs in leather - Influence of modified FNPs on the orgnaoleptic and physical performance of leather
- Table 1 : Retanning processesDOI : https://doi.org/10.34314/jalca.v118i9.8192 En ligne : https://drive.google.com/file/d/10908iVZoLJzZjsvx-zHjmXixuJudFNla/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=39829
in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA) > Vol. CXVIII, N° 9 (09/2023) . - p. 386-395[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 24196 - Périodique Bibliothèque principale Documentaires Disponible Investigation of the effect of filler concentration on the flow characteristics of filled polyethylene melts / G. A. Campbell in INTERNATIONAL POLYMER PROCESSING, Vol. XXXIII, N° 5 (11/2018)
PermalinkInvestigation of thermal and dielectric properties of epoxy baed hybrid composites for microelectronics applications / Alok Abrawal in INTERNATIONAL POLYMER PROCESSING, Vol. XXXIII, N° 4 (08/2018)
PermalinkInvesting in analysis / Howard Beedle in POLYMERS PAINT COLOUR JOURNAL - PPCJ, Vol. 192, N° 4459 (12/2002)
PermalinkPermalinkKeeping corrosion at bay / Peter A. Ciullo in POLYMERS PAINT COLOUR JOURNAL - PPCJ, Vol. 192, N° 4459 (12/2002)
PermalinkPermalinkKeratin recovered from tannery wastes as a filler for rubber mixes / Anita Przepiórkowska in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 88, N° 4 (07-08/2004)
PermalinkKeratin-silica matrix - A new protein filler from chicken feathers for retanning / R. Karthikeyan in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. CVI, N° 2 (02/2011)
PermalinkLatex polystyrène et copolymère avec le styrène sulfonate à densité superficielle de charge variable : Comportement rhéologique / B. Dumont in LES CAHIERS DE RHEOLOGIE, Vol. X, N° 3-4 (11/1992)
PermalinkLayered double hydroxides (LDHs) for coating applications / Ameya Jagtap in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 19, N° 4 (07/2022)
PermalinkPermalinkLightening up on energy costs with microspheres / David Gonzalez Amago in EUROPEAN COATINGS JOURNAL (ECJ), (03/2024)
PermalinkPermalinkLighter with better dimensional stability / Stefan Friedrich in KUNSTSTOFFE INTERNATIONAL, Vol. 103, N° 9 (09/2013)
PermalinkLightweight electric motors / Susanne Palm in KUNSTSTOFFE INTERNATIONAL, Vol. 108, N° 1-2 (01-02/2018)
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