Aller sur edunet
Accueil
Mention de date : 06/1999
|
Dépouillements
Ajouter le résultat dans votre panierWaterborne 2K acrylic polyurethanes : novel low -NCO/-OH systems / Chase J. Boudreaux in EUROPEAN COATINGS JOURNAL (ECJ), N° 6/99 (06/1999)
Titre : Waterborne 2K acrylic polyurethanes : novel low -NCO/-OH systems Type de document : texte imprimé Auteurs : Chase J. Boudreaux, Auteur ; Amir Niroomand, Auteur ; Thierry Jeannette, Auteur Année de publication : 1999 Article en page(s) : p. 30-35 Note générale : Bibliogr. Langues : Anglais (eng) Index. décimale : 667.9 Revêtements et enduits Résumé : Two-component waterborne polyurethane systems have been an active area of research and business development in recent years. Most of these waterborne systems require relatively high isocyanate indexing over hydroxyl content in order to compensate for the inevitable competing reaction with water. We develop combinations of novel acrylic polyol dispersions and a novel water dispersible polyisocyanate that produce useful coatings at -NCO/ -OH indexing of less than 1.25. A discussion is included on how variations in components of the formulations influence pot life, application properties, tack-free and through-cure time film properties, and accelerated weathering data. Note de contenu : - Advantages of waterborne systems
- But there are shortcomings
- New effecive coatings with improved properties at -NCO/-OH rations less than 1.25
- Conditions
- Coating formulations
- Measurements and testing
- Effects of tin catalyst on film properties
- Increased levels of catalyst decreased tack free and through cure times
- Effects of -NCO/-OH ratio on film propertiesEn ligne : https://drive.google.com/file/d/1VAMdIo-EpCkcFcKDA6QhD0pefvgP9kTj/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=11194
in EUROPEAN COATINGS JOURNAL (ECJ) > N° 6/99 (06/1999) . - p. 30-35[article]Réservation
Réserver ce document
Exemplaires (1)
Code-barres Cote Support Localisation Section Disponibilité 000607 - Périodique Bibliothèque principale Documentaires Disponible
Titre : UV curing of white cationic flexographic inks Type de document : texte imprimé Auteurs : Tom Scherzer, Auteur ; Ulrich Decker, Auteur ; Igor Janovsky, Auteur ; Reiner Mehnert, Auteur Année de publication : 1999 Article en page(s) : p. 36-47 Note générale : Bibliogr. Langues : Anglais (eng) Index. décimale : 667.9 Revêtements et enduits Résumé : Cationic UV curable formulations such as flexographic printing inks or white base coatings are slowly curing systems. The question if an increase of the curing speed can be obtained by applying a XeCl* excimer instead of a medium pressure mercury lamp of equal electric power could be answered : replacing by a 308 nm excimer lamp allows to reach about 20-30% higher cure speed in the curing of cationic white flexo inks. In addition, real-time FTIR experiments on UV curing of cationic flexographic inks show a clear effect of temperature on polymerization rate. Actinometry of curing light sources provides valuable information about photon rates which can be used to estimate cure speeds expected under technological curing conditions. Note de contenu : - Curing of white ink is the speed determining step
- Can the cure speed be increased by applying a XeCl* excimer lamp?
- General mechanism of cationic curing and evaluation of kinetic parameters
- The cure speed concept
- Weakness of the cure speed concept
- Real-time Fourier transform infrared spectroscopy
- Determination of the cure speed derived from conversion vs. time profiles
- Is UV curing accelerated by heat?
- Heat accelerates postcuring
- Printing trials using the flexographic press "Soloflex"
- Cure speed with excimer lamp is clearly higher
- Chemical actinometry of polychromatic and monochromatic radiation
- Measurement of the 313 nm light
- Measurement of the polychromatic light
- Polymerisation rate at monochromatic is higher than during polychromatic exposure
- Discussion of the results
- Theoretical cure speed estimations are in accordance with the experimental findings
- ConclusionsEn ligne : https://drive.google.com/file/d/1U7mokSXCQJoo9_f1qUAZG3quAS6arTpC/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=11196
in EUROPEAN COATINGS JOURNAL (ECJ) > N° 6/99 (06/1999) . - p. 36-47[article]Réservation
Réserver ce document
Exemplaires (1)
Code-barres Cote Support Localisation Section Disponibilité 000607 - Périodique Bibliothèque principale Documentaires Disponible
Titre : Rheology of paints and applications Type de document : texte imprimé Auteurs : Vladimir V. Verkholantsev, Auteur Année de publication : 1999 Article en page(s) : p. 48-55 Note générale : Bibliogr. Langues : Anglais (eng) Index. décimale : 667.9 Revêtements et enduits Résumé : Flow behavior is one of the most important technical properties of a coating system, that is determinated primarily by the binder (its chemistry, molecular weight), the solvent content and affinity to the resin, the pigmentation, and a variety of coatings additives. However, there is a wide range of rheological additives available to the formulator, that usually only can render liquid coating compositions the flow characteristics necessary to assure their proper processing, shelf stability, application properties and defect-free end coatings with desirable technical characteristics. This includes film thickness, uniformity, and many decorative and protective properties. This article considers paint rheology and describes viscosity-controlled processes in coatings. Note de contenu : - Types of viscosity profiles
- Rheopexic and thixotropic -two types of time-dependant flow behaviour
- Paint rheology
- No paint formulation can instantly fulfill frequently contradictive requirements
- Rheology controlled processes
- Settling
- Spreading
- Penetration into porous substrates
- Leveling
- Sagging and SlumpingEn ligne : https://drive.google.com/file/d/1y7M167rRHU6Rtfp2aKJ4QPaZ25JyALg6/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=11197
in EUROPEAN COATINGS JOURNAL (ECJ) > N° 6/99 (06/1999) . - p. 48-55[article]Réservation
Réserver ce document
Exemplaires (1)
Code-barres Cote Support Localisation Section Disponibilité 000607 - Périodique Bibliothèque principale Documentaires Disponible
Titre : Inorganic coatings Type de document : texte imprimé Auteurs : Robert D. Athey, Auteur Année de publication : 1999 Article en page(s) : p. 56-59 Note générale : Bibiogr. Langues : Anglais (eng) Index. décimale : 667.9 Revêtements et enduits Résumé : The normally thought of coating is made of an organic resin, which may contain some inorganic materials (e.g as pigments). But ... there are coatings that are completely inorganic (or akmost so) in the final and useful form. Herein, multiple examples are shown for both protection and decoration forms of coatings, covering a 50 year period of experience. Note de contenu : - Metals as coatings
- Vacuum evaporation
- Plasma spray
- Electroplating
- Electroless Plating
- Zinc rich paints
- Galvanizing
- Conversion coatings
- Some recent advances
- New color coatings
- Decorative color coating compositions
- ConclusionsEn ligne : https://drive.google.com/file/d/1BPxBu0ghsXJsLSHPVxt80SSatT7wfwhs/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=11198
in EUROPEAN COATINGS JOURNAL (ECJ) > N° 6/99 (06/1999) . - p. 56-59[article]Réservation
Réserver ce document
Exemplaires (1)
Code-barres Cote Support Localisation Section Disponibilité 000607 - Périodique Bibliothèque principale Documentaires Disponible
Titre : Environmentally friendly and economical cleaning of transport containers Type de document : texte imprimé Auteurs : Gerald Altnau, Auteur ; Rolf Gernig, Auteur ; Norbert Granderath, Auteur Année de publication : 1999 Article en page(s) : p. 60-62 Langues : Anglais (eng) Index. décimale : 667.9 Revêtements et enduits Résumé : A large coatings producer cleans approximately 50 intermediate coating transport containers per day, mainly for the automotive industry. For this process a new solvent is used which is environmentally friendly and biodegradable and offers a high solvency power. Note de contenu : - Not only meeting the regulations
- The process technology is simple
- What to do with the loaded solvent and the wash-water?
- Non hazardous against all EU criteria
- Solvent formulation supportEn ligne : https://drive.google.com/file/d/1aE3lO8eykzSrdrwyH4AaZ9ZPbvqjWjLX/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=11199
in EUROPEAN COATINGS JOURNAL (ECJ) > N° 6/99 (06/1999) . - p. 60-62[article]Réservation
Réserver ce document
Exemplaires (1)
Code-barres Cote Support Localisation Section Disponibilité 000607 - Périodique Bibliothèque principale Documentaires Disponible
Titre : How do pearl lustre pigments show different colours ? Type de document : texte imprimé Auteurs : Werner Rudolf Cramer, Auteur Année de publication : 1999 Article en page(s) : p. 72-73 Langues : Anglais (eng) Catégories : Pigments à effets spéciaux
Pigments interférentiels
Pigments nacrésIndex. décimale : 667.2 Colorants et pigments Note de contenu : - Layer thickness determines the colour
- Fig. 1 : Interference pigments reflect the incident light selectively : one part reflects on the surface, the other part leaves the pigment as the complementary colour (e.g. red - green). Both light rays C-D and F-G interfere with one another, the light waves being diminished or intensified
- Fig. 2 : Same core, different coatings : a colourful game of coloursEn ligne : https://drive.google.com/file/d/1-rMC3RVbocw8ce3Tbc1c7ZGykzgq5lAK/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=33530
in EUROPEAN COATINGS JOURNAL (ECJ) > N° 6/99 (06/1999) . - p. 72-73[article]Réservation
Réserver ce document
Exemplaires (1)
Code-barres Cote Support Localisation Section Disponibilité 000607 - Périodique Bibliothèque principale Documentaires Disponible
Exemplaires (1)
| Code-barres | Cote | Support | Localisation | Section | Disponibilité |
|---|---|---|---|---|---|
| 000607 | - | Périodique | Bibliothèque principale | Documentaires | Disponible |
