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Singlet oxygen drying of alkyd resins and model compounds / J. C. Hubert in JOURNAL OF COATINGS TECHNOLOGY (JCT), Vol. 69, N° 869 (06/1997)
[article]
Titre : Singlet oxygen drying of alkyd resins and model compounds Type de document : texte imprimé Auteurs : J. C. Hubert, Auteur ; R. A. M. Venderbosh, Auteur ; W. J. Muizebelt, Auteur ; R. P. Klaasen, Auteur ; K. H. Zabel, Auteur Année de publication : 1997 Article en page(s) : p. 59-64 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Haut extrait sec
Oxydation
Polyalkydes
Réactivité (chimie)Index. décimale : 667.9 Revêtements et enduits Résumé : The drying behavior of air-drying high-solids paints (VOC<250 g/l) is different from and not as good as that of conventional paints. Research in relevant model compounds and alkyd paints has been initiated to gain insight in the underlying processes. After air-drying and aging, products whose formation could best be explained by assuming reaction with singlet oxygen were identified. Singlet oxygen can react with unsaturated systems in an efficient “ene” reaction to hydroperoxides. As hydroperoxides are essential in the air-drying process, an increased formation of singlet oxygen achieved by addition of (colored) sensitizers such as methylene blue and rose bengal should have a beneficial effect on alkyd drying. This effect was indeed found and appeared to be most pronounced at low temperatures. As a result the drying of high-solids alkyds and their corresponding paints is almost at the same rate as conventional products. Note de contenu : - INTRODUCTION : The oxidative drying of alkyds
- EXPERIMENTAL : Auto-oxidation of (Z,Z)-3,6-nonadiene - Drying experiments of HS alkyds with photo-sensitizers - Drying experiments of Pigmented HS alkyds systems with photo-sensitizers - Color measurements on Pigmented HS alkyds with photo-sensitizers - Photo-oxidation of a methyl oleate/ethyl linoleate mixture - Auto-oxidation of a methyl oleate/ethyl linoleate mixture
-RESULTS AND DISCUSSION : Model compounds - Singlet oxygen - Photo-oxidation of linoleate versus oleate - Photo-oxidation and alkyd drying - Drying experiments using a BK recorder - Color measurementsPermalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=18259
in JOURNAL OF COATINGS TECHNOLOGY (JCT) > Vol. 69, N° 869 (06/1997) . - p. 59-64[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 003538 - Périodique Bibliothèque principale Documentaires Disponible Solvent replacement in alkyd based coatings / Jo Grade in DOUBLE LIAISON, N° 562 (05/2008)
[article]
Titre : Solvent replacement in alkyd based coatings Type de document : texte imprimé Auteurs : Jo Grade, Auteur ; Bill McNamee, Auteur Année de publication : 2008 Article en page(s) : p. 30-33 Langues : Français (fre) Catégories : Composés organiques volatils
Composés organiques volatils -- Législation -- Europe
Emulsifiants
Emulsions -- Stabilité
Polyalkydes
Revêtements
Surfactants
ViscositéIndex. décimale : 667.6 Peintures Résumé : The European VOC directive will dramatically change the coatings market over the next two years. Solventborne alkyd resins as know today will largely disappear. The challenge for the resin producer and paint formulator is to develop alkyd based coatings with minimal solvent levels. With selected and properly formulated surfactants, water can be incorporated in solventborne alkyd based coatings as a dispersed phase to partially replace hydrocarbons. The use of "non-migratory surfactants' as external emulsion stabilisers allows development of low VOC alkyd based coatings with excellent shelf life and film quality. Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=3434
in DOUBLE LIAISON > N° 562 (05/2008) . - p. 30-33[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 010462 - Périodique Bibliothèque principale Documentaires Disponible
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Titre : Solving a volatile problem : New liquid polybutadiene polymer replaces solvent and improves application Type de document : texte imprimé Auteurs : Anne-Sophie Hesry, Auteur ; Stacey Syron, Auteur ; Malcolm McInnes, Auteur Année de publication : 2017 Article en page(s) : p. 30-34 Langues : Anglais (eng) Catégories : Bois -- Revêtements
Formulation (Génie chimique)
Liants
Pénétration (physique)
Polyalkydes
Polybutadiène
Réduction des composés organiques volatils
Rhéologie
Stabilité au stockage
VernisIndex. décimale : 667.9 Revêtements et enduits Résumé : Reducing the level of volatile organic compounds (VOCs) in solvent-based alkyd resin systems poses a huge challenge for formulators. A novel liquid hydrocarbon polymer minimises VOCs and offers improved application properties in clear coatings. A newly developed liquid polybutadiene polymer provides hope for more eco-friendly binder systems. Note de contenu : - Higher loading with novel resin
- Application properties in clear coatings
- Rheology
- Drying time improved with high addition
- Slight hardness increase at low addition
- Greater substance penetration at high addition
- Higher solids reduce VOCs
- Ongoing research to explore benefits in different systems
- FIGURES : 1. Storage stability of blends LPBD/alkyd resin 1 - 2. Rheology profile of modified alkyd blends - 3. Set-up for wood penetration - 4. 1.5 cm depth cross-section of oak panels after 15 minutes dip - 5. Chromatograms showing the difference in VOC content
- TABLES : 1. Typical formulations example to assess drying time - 2. Drying time results - 3. Pencil hardness dataEn ligne : https://drive.google.com/file/d/1gGO-v9dKZJG56M_1URAUXBH_rT4XijM_/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=29616
in EUROPEAN COATINGS JOURNAL (ECJ) > N° 12 (12/2017) . - p. 30-34[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 19459 - Périodique Bibliothèque principale Documentaires Disponible A step away from petrochemicals / Shikhin Nadkarni in EUROPEAN COATINGS JOURNAL (ECJ), N° 2 (02/2016)
[article]
Titre : A step away from petrochemicals : Modifying Damar Batu to synthesise alkyd and polyurethane systems Type de document : texte imprimé Auteurs : Shikhin Nadkarni, Auteur ; D. Barde, Auteur ; J. M. Nadkarni, Auteur Année de publication : 2016 Article en page(s) : p. 36-40 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Anticorrosion
Biomatériaux
Biopolymères
Caractérisation
Chimie analytique
Liants
Polyalkydes
Polyuréthanes
Revêtements:PeintureIndex. décimale : 667.9 Revêtements et enduits Résumé : Damar Batu, a natural resin, was studied analitycally to determine its physical and chemical characteristics. The resin was then modified so that it could be used to synthesise alkyds and polyurethanes. Paints based on these binders were found to offer anticorrosive properties at least comparable to the rosinated alkyd formulation commercially used in India. Note de contenu : - Sources and uses of damar batu
- The nature and composition of alkyds and polyurethanes
- Chemical analysis experiments summarised
- Resin is modified to increase functionality
- Determining the functionality of modified DB
- Alkyd and polyurethane systems are synthesised
- Corrosion performance matches commercial products
- Further development should lead to wider use
- FIGURES : 1. Conversion of phenolic hydroxyls to alcoholic hydroxyls - 2. Reaction of modified damar batu with monofunctional soya fatty acid - 3. Reaction of modified damar batu with difunctional adipic acid - 4. Corrosion test results with standard product and paint based on modified damar batu - 5. Humidity test results with standard products and paint based on modified damar batu
- TABLES : 1. Physical and chemical characteristics of damar batu resin - 2. Comparison of damar batu based polyurethane red oxide primer with standard rosinated alkyd red oxide primerEn ligne : https://drive.google.com/file/d/1A52GnAS45XcTAmCoOSlYZMCsepU1KBk3/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=25536
in EUROPEAN COATINGS JOURNAL (ECJ) > N° 2 (02/2016) . - p. 36-40[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 17843 - Périodique Bibliothèque principale Documentaires Disponible
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Titre : Stoving enamels - 2 Type de document : texte imprimé Auteurs : Mukund Hulyalkar, Auteur Année de publication : 2016 Article en page(s) : p. 82 Langues : Anglais (eng) Catégories : Copolymère alkyde mélamine
Formulation (Génie chimique)
Polyalkydes
Revêtement émail:Peinture-émailIndex. décimale : 667.9 Revêtements et enduits En ligne : https://drive.google.com/file/d/1a9JSNWl9WRBCI7zjaBMuF_HxMeojNbYD/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=27499
in PAINTINDIA > Vol. LXVI, N° 9 (09/2016) . - p. 82[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 18498 - Périodique Bibliothèque principale Documentaires Disponible A study of new maganese complexes as potential driers for alkyd paints / E. Bouwman in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 4, N° 4 (12/2007)
PermalinkA study of the effect of acid rain on alkyd, polyester, and silicone-modified high-solids coatings in JOURNAL OF COATINGS TECHNOLOGY (JCT), Vol. 67, N° 850 (11/1995)
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PermalinkSurface-treated boehmite nano-particles for improved scratch resistance / U Nolte in POLYMERS PAINT COLOUR JOURNAL - PPCJ, Vol. 203, N° 4591 (12/2013)
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PermalinkSynthesis and evaluation of tetra(2,7-octadienyl) titanate as a reactive diluent for air-drying alkyd paints / Alp H. Alidedeoglu in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 8, N° 1 (01/2011)
PermalinkSynthesis and performance of new modified reactive flame-retardant alkyd resin based on tetrabromophthalic anhydride as varnish for surface coatings / H. Abd El-Wahab in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 12, N° 1 (01/2015)
PermalinkSynthesis of acrylic-modified water-reducible alkyd resin: improvement of corrosion resistance in painting formulations / Figen Aynali in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 20, N° 6 (11/2023)
PermalinkSynthesis of four-component acrylic-modified water-reducible alkyd resin : investigation of dilution ratio effect on film properties and thermal behaviors / Özge Naz Büyükyonga in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 14, N° 1 (01/2017)
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