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Microencapsulation of isocyanates. Characterization and storage stability of microcapsules in a polyester α, ω-ol / Evelyne Quérat in JOURNAL OF COATINGS TECHNOLOGY (JCT), Vol. 68, N° 854 (03/1996)
[article]
Titre : Microencapsulation of isocyanates. Characterization and storage stability of microcapsules in a polyester α, ω-ol Type de document : texte imprimé Auteurs : Evelyne Quérat, Auteur ; Lan Tighzert, Auteur ; Jean-Pierre Pascault, Auteur Année de publication : 1996 Article en page(s) : p. 83-90 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Caractérisation
Encapsulation
Isocyanates
Poly-e-caprolactone
Polycondensation
Polyesters
Stabilité au stockageIndex. décimale : 667.9 Revêtements et enduits Résumé : The microencapsulation of toluene 2,4-diisocyanate dimer (di-TDI) was accomplished by interfacial polycondensation with ethylene diamine in cyclohexane and in a polycaprolactone; the influence of different parameters was discussed. The microcapsules obtained were characterized according to morphology and NCO content. Their behavior in two polycaprolactones was studied. The reaction between NCO and OH groups took place only after the isocyanate melting when encapsulation was well done. The stability of microcapsules stored in polycaprolactones at room temperature and 40 °C was also examined. Note de contenu : - EXPERIMENTAL : Materials - Synthesis - Analysis
- RESULTS AND DISCUSSION : Influence of different parameters of reaction on the microencapsulation process - Characterization of microcapsules - Behavior and reactivity of microcapsules in polycaprolactone - Effect of residual EDA - Stability of microcapsules in polycaprolactonesPermalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=18472
in JOURNAL OF COATINGS TECHNOLOGY (JCT) > Vol. 68, N° 854 (03/1996) . - p. 83-90[article]Exemplaires (1)
Code-barres Cote Support Localisation Section Disponibilité 003524 - Périodique Bibliothèque principale Documentaires Exclu du prêt Mixtures of trisodium citrate anhydrous and dihydrate as builders in diswashing detergents - Effects on tablet stability and disintegration / Katharina Mück in SOFW JOURNAL, Vol. 147, N° 5 (05/2021)
[article]
Titre : Mixtures of trisodium citrate anhydrous and dihydrate as builders in diswashing detergents - Effects on tablet stability and disintegration Type de document : texte imprimé Auteurs : Katharina Mück, Auteur ; Sandra Rotermund, Auteur ; Felix Weiher, Auteur Année de publication : 2021 Article en page(s) : p. 34-38 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Citrate trisodique
Détergents -- Additifs
Emballages en matières plastiques
Polypropylène
Résistance à la rupture
Stabilité au stockage
Vaisselle -- NettoyageIndex. décimale : 668.1 Agents tensioactifs : savons, détergents Résumé : Trisodium citrate is an ecologically friendly, non-toxic alternative to phosphorus-based builders in automatic dishwashing detergent (ADWD) tablets. It exists in two forms: trisodium citrate dihydrate (TSC), which contains two water molecules in the crystal, and trisodium citrate anhydrous (TSA). The latter is produced by removing the water of crystallisation from the crystalline matrix, thus creating a porous structure. TSA can be loaded with liquid substances and will remain a free-flowing powder because of these pores. In the present analysis, the effects of TSC, TSA and mixtures thereof on critical tablet parameters, such as disintegration and stability, were examined. The study shows that replacing part of the TSC in the formulation with TSA decreases disintegration time and increases breaking strength after tablet pressing. This finding is supported by an existing patent (EP 3 431 575), which additionally shows that mixtures of TSA and TSC improve tablet cleaning performance. Furthermore, the present study demonstrates that the storage stability in polypropylene packaging of tablets containing TSA/TSC mixtures is comparable to that of tablets which only use TSC as the builder. Thus, TSA and TSC are not only eco-friendly builders, but can be used to modulate tablet disintegration time and stability as needed. Note de contenu : - Experimental procedure
- Results : Mixing TSA and TSC accelerates tablet disintegration
- TSA increases breaking strenght
- Equally good storage stability in polypropylene
- Fig. 1 : effect on tablet disintegration time of using TSA, TSC and mixtures thereof as builders
- Fig. 2 : Marked crack formation during disintegration of tablets with TSA/TSC mixtures as builders
- Fig. 3 : Replacing part of the TSC with TSA improves tablet breaking strength after pressing
- Fig. 4 : The choice of TSA, TSC or mixtures thereof as builders has no impact on storage stability in polypropylene packaging
- Table 1 : ADWD tablet formulationEn ligne : https://drive.google.com/file/d/1oMs2OG751NSlzhZUgeQUCvSI0cTYFnzT/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=35892
in SOFW JOURNAL > Vol. 147, N° 5 (05/2021) . - p. 34-38[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 22736 - Périodique Bibliothèque principale Documentaires Disponible Neutralising formulation problems / Silvia Ziebold in EUROPEAN COATINGS JOURNAL (ECJ), N° 3 (03/2017)
[article]
Titre : Neutralising formulation problems : Novel sugar-based additive for ecolabel-certified paints Type de document : texte imprimé Auteurs : Silvia Ziebold, Auteur ; Jörg Rüger, Auteur Année de publication : 2017 Article en page(s) : p. 104-109 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Etiquetage écologique
Glucides
Neutralisants (chimie)
pH
Revêtements en phase aqueuse -- Additifs:Peinture en phase aqueuse -- Additifs
Stabilité au stockageIndex. décimale : 667.9 Revêtements et enduits Résumé : Despite only being used in small quantities in water-based paints, neutralising agents can have a significant impact. They regulate the pH value and make a positive contribution to the storage stability of the paint by reducing the interaction between the paint ingredients. Compliance with health and environmental requirements, such as being VOC/SVOC-free and hazard label-free, make these neutralising agents particularly attractive for ecolabel-certified paints. Note de contenu : - Multifunctional neutralising agents improve paint performance
- Ecolabels restrict content
- Sugar-based additive offers sustainability benefits being a renewable material
- Neutralising agents put to the test
- Improving storage stability in semi-gloss lacquers
- No impact on drying process
- Flash rust
- Shift of shades in tinted systems
- Pigment compatibility
- Novel additive improves paint performance and is economicalEn ligne : https://drive.google.com/file/d/1u-nkqyx6yQqioGURRY_ZRVE2ptNEln3l/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=27955
in EUROPEAN COATINGS JOURNAL (ECJ) > N° 3 (03/2017) . - p. 104-109[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 18717 - Périodique Bibliothèque principale Documentaires Disponible New non-isocyanate moisture curable silylated resin for protective coating applications / Michael Seeber in POLYMERS PAINT COLOUR JOURNAL - PPCJ, Vol. 207, N° 4635 (10/2017)
[article]
Titre : New non-isocyanate moisture curable silylated resin for protective coating applications Type de document : texte imprimé Auteurs : Michael Seeber, Auteur ; Nayeem Soad, Auteur ; Vikram Kumar, Auteur ; Dean Kondos, Auteur ; Antonio Chaves, Auteur ; Martin Wusik, Auteur Année de publication : 2017 Article en page(s) : p. 29-34 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Anticorrosifs
Anticorrosion
Dépôt par pulvérisation
Essais de résilience
Essais dynamiques
Flexion (mécanique)
Formulation (Génie chimique)
Isocyanates -- Suppression ou remplacement
Métaux -- Revêtements protecteurs
Photostabilité
Polyuréthanes
Réticulation à l'humidité
Revêtement monocomposant
SilylationLa silylation est l'introduction d'un groupe silyle, généralement substitué (R3Si–), dans une molécule.
Stabilité au stockage
Surfaces -- Nettoyage
Vernis
ViscositéIndex. décimale : 667.9 Revêtements et enduits Résumé : Two-component (2K) polyurethane coatings are widely used as the top layer of protective coatings systems to provide performance benefits, such as UV durability, flexibility and chemical resistance. However, these 2K products are coming under increasing scrutiny due to the presence of unreacted isocyanate in the uncured formulation. There have been efforts made ta develop non-isocyanate based coatings however, it is a challenge to do so while providing ail performance benefits of a 2K Polyurethane coating. A new non¬isocyanate moisture curable silylated resin for protective coating applications is discussed in this paper. This resin is targeted to enable the coating formulator ta develop a one¬component (1K) non-isocyanate coating that provides performance on par with the current 2K polyurethane coatings. Some of the key coating properties that were studied and are . discussed herein are UV durability, flexibility, corrosion resistance and chemical resistance. Note de contenu : - EXPERIMENTAL : Metal cleaning process - Spray coating application - Design of experiments/formulation - Testing protocols - Chemical resistance test
- RESULTS AND DISCUSSION : Viscosity and shelf stability of Y-19243 resin and model formulations - Flexibility and impact resistance of Y-19243 resin - Outdoor durability and chemical resistance - Corrosion resistance
- TABLES : 1. Basic clear coat sample formulation - 2. Grind paste sample formulation using TiO2 and Y-19243 - 3. Grind paste sample formulation using TiO2 and Y-19243 with a pigment binder of 0.35 - 4. Cross hatch adhesion values after seven day cure at room temperature - 5. Pass/fail results for 3/4" Mandrel bend test on CRS substrates - 6. Summary of colour and gloss values before and after exposure to QUV-B weathering for eight weeks
- FIGURES : 1. Konig hardness values as a function of # oscillations vs room temperature cure time over 60 days - 2. Evolutions of viscosity (cP) as measured at two week time intervals after ageing in a 50°C oven. Measurements were taken of Y-19243 resin as produced, as well as model clear formulations - 3. Visual images of mandrel bend tests. A. Exp. clear, no catalyst B; Exp clear with catalyst ; C. Exp white, no catalyst, with catalyst ; E. Comm 1K-A ; F. Comm 1K-B ; G. 2K PU - 4. Frontal and reverse impact resistance values in lbs force for all model formulations and commercial controls. Panels were tested after 30 days of room temperature cure - 5. Chemical resistance ratings scale - 6. Visual representation of areas of cured films exposed to all solvents tested - 7. Corrosion resistance after 1500 hr exposure to NSS. a) Com. 1K-A ; b) Comm. 1K-B - c) Comm. 2K PU ; d) Exp white, no catalyst ; e) Exp white, catalystEn ligne : https://drive.google.com/file/d/1LqialbhrHGYZelQtXxUle97cwrueSbAY/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=29327
in POLYMERS PAINT COLOUR JOURNAL - PPCJ > Vol. 207, N° 4635 (10/2017) . - p. 29-34[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 19293 - Périodique Bibliothèque principale Documentaires Disponible No alcohol is no solution either / Udo Schonhoff in SURFACE COATINGS INTERNATIONAL, Vol. 104.5 (09-10/2021)
[article]
Titre : No alcohol is no solution either Type de document : texte imprimé Auteurs : Udo Schonhoff, Auteur ; Carlos Feito, Auteur ; Elke Piron, Auteur ; Sebastian Heinz, Auteur Année de publication : 2021 Article en page(s) : p. 364-368 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Epaississants
Formulation (Génie chimique)
Marines (peinture)
Mélanges (chimie)
Revêtements organiques
Rhéologie
solvants
Stabilité au stockageIndex. décimale : 667.9 Revêtements et enduits Résumé : Marine and protective coatings typically have very high requirements in terms of sag stability. The systems are typically spray applied at high layer thickness of around 1000 lm or even more in one pass. This demanding requirement limits the selection of suitable rheology modifiers.
Note de contenu : - Comparison to other thickener classes
- Product chemistry
- Utilising renewable resources
- Fig. 1 : Activation process of diamide organic thixotropes
- Fig. 2 : Comparison to other thickener classes
- Fig. 3 : Thickening mechanism
- Fig. 4 : Solvent blends used in test formulation
- Fig. 5 : Influence of solvent blends on viscosity build
- Fig. 6 : Influence solvent blends in viscoelasticity
- Fig. 7 : Viscosity build/activation temperature
- Fig. 8 : Influence of activation time
- Fig. 9 : Storage stability
- Fig. 10 : Sag control after spray application
- Fig. 11 : Recommended processing methods
- Table : Test formulationEn ligne : https://drive.google.com/file/d/1HRWE7VRbC0oMP_anpRKCzHJo4GMcAWRS/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=36314
in SURFACE COATINGS INTERNATIONAL > Vol. 104.5 (09-10/2021) . - p. 364-368[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 22974 - Périodique Bibliothèque principale Documentaires Disponible PermalinkNovel latent amine technology / Dilip N. Shah in ADHESIVE TECHNOLOGY, Vol. 17, N° 3 (06/2000)
PermalinkPermalinkNovel sugar-based neutralizing agent for ecolabel certified paints in SURFACE COATINGS INTERNATIONAL, Vol. 102.3 (06-07/2019)
PermalinkPermalinkPeintures en poudre thermodurcissables. Evaluation de la stabilité au stockage - Norme T 30-507 / Association Française de Normalisation (Paris) / Saint-Denis La Plaine : Association Française de Normalisation (AFNOR) (1981)
PermalinkPhotochromic ink formulation for digital inkjet printing and colour measurement of printed polyester fabrics / Mohanad Aldib in COLORATION TECHNOLOGY, Vol. 131, N° 2 (04/2015)
PermalinkPoudres pour revêtement. Partie 8 : Estimation de la stabilité au stockage des poudres thermodurcissables - Norme ISO 8130-8 / International Organization for Standardization (Genève, Suisse) / Geneve [Switzerland] : International Organization for Standardization (ISO) (1994)
PermalinkPreparation and coating properties of alkyd polyol-based autoxidizable waterborne polyurethane dispersions with high fatty acid content, long storage stability, and low viscosity / Zecheng Lin in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 21, N° 5 (09/2024)
PermalinkPermalinkRéduction des gaz nocifs par la synthèse de la dispersion aqueuse des polyépoxydes / Zhonghuan Huang in REVUE DES COMPOSITES ET DES MATERIAUX AVANCES, Vol. 28, N° 4 (10-11-12/2018)
PermalinkPermalinkStabilisation and detoxification of henna (Lawsonia inermis L.) extract for hair dye cosmetics by spray-drying encapsulation / Ying Tang in COLORATION TECHNOLOGY, Vol. 135, N° 6 (12/2019)
PermalinkStability of a Rhus Coriaria L. tannin extract under different storage conditions / A. Zalacain in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 85, N° 6 (11-12/2001)
PermalinkStorage stability of epoxy resins emulsions / Alex Wegmann in EUROPEAN COATINGS JOURNAL (ECJ), N° 7-8/95 (07-08/1995)
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