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Ajouter le résultat dans votre panierDispensing : How to increase accuracy and speed / W. Schäfer in EUROPEAN COATINGS JOURNAL (ECJ), N° 6/97 (06/1997)
Titre : Dispensing : How to increase accuracy and speed : The use of modern control and computer technology Type de document : texte imprimé Auteurs : W. Schäfer, Auteur ; F. Elling, Auteur ; E. Dosch, Auteur Année de publication : 1997 Article en page(s) : p. 610-613 Langues : Anglais (eng) Tags : Peinture Fabrication 'Dispositif alimentation' Index. décimale : 667.9 Revêtements et enduits Résumé : The new dispensing technology is an innovation which achieves higher speed and increased accuracy in the practical dispensing of liquids by systematically using the most modern technology and adopting a scientific approach. Over the years it has proved itself in several plants. This article describes the basic methods and ideas which resulted in the controlled two-phase dispensing procedure. Note de contenu : - The starting point of the innovation
- Advantages of the controlled two-phase dispensing procedure
- Theoretical basis of the development
- Physical effects
- Mathematical control principles
- Optimization of dispensing accuracy
- Optimization of the dispensing time
- Process analysis
- Process diagnosis (error detection)
- Pratical experience
- Experimental dispensing tolerances of the controlled two-phase procedure
- Speed of the controlled two-phase dispensing procedurePermalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=11407
in EUROPEAN COATINGS JOURNAL (ECJ) > N° 6/97 (06/1997) . - p. 610-613[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 002528 - Périodique Bibliothèque principale Documentaires Disponible
Titre : Colloid Chemistry, Part III : Stability of dispersions and emulsions Type de document : texte imprimé Auteurs : Vladimir V. Verkholantsev, Auteur Année de publication : 1997 Article en page(s) : p. 614-622 Note générale : Bibliogr. Langues : Anglais (eng) Index. décimale : 667.9 Revêtements et enduits Résumé : Lyophobic dispersions of film forming oligomers and polymers is a large group of heterophase binders, which includes emulsions, plastigels, latexes and various hybrid systems. As for pre-sent paint technology, the interest in oligomer emulsions and plastigels fades, whereas synthetic and artificial latexes and hybrid binders play more and more important roles. This paper, the 3rd of the series, is a brief description of colloid fundamentals of emulsions and latexes. Majority of their technical characteristics and their behavior in technological processes are closely dependent on their colloid stability. Stability of and coagulation in lyophobic polymer dispersions, heavily studied and still quite controversial issues in colloid chemistry, are disclosed here briefly and rather qualitatively, aiming to provide readers with the main colloid concepts, useful in the technology and formulation of resin emulsions, polymer latexes and emulsion paints. Note de contenu : - Stability concepts
- Repulsives forces
- Micro-kinetic of stabilization
- Particle size and volume particle content
- Polymer latexes and resin emulsions
- Emulsification
- Emulsification mechanisms
- Mechanical energy
- Surfactant and direction of emulsification
- Alkyd emulsions
- Phase inversion technology
- Epoxy emulsions
- Artificial latexes
- Synthetic latexes (polymer dispersions)
- Dispersion destabilization and breaking
- Kinetic stability
- Aggregative stability
- Phenomenology of coagulation
- Destabilizing actions (factors)
- Chemical destabilization
- Coagulation kineticsPermalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=11412
in EUROPEAN COATINGS JOURNAL (ECJ) > N° 6/97 (06/1997) . - p. 614-622[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 002528 - Périodique Bibliothèque principale Documentaires Disponible
Titre : High performance coatings : Novel VF2/HFP copolymers Type de document : texte imprimé Auteurs : Scott R. Gaboury, Auteur Année de publication : 1997 Article en page(s) : p. 624-626 Note générale : Bibliogr. Langues : Anglais (eng) Index. décimale : 667.9 Revêtements et enduits Résumé : A new class of VF2/HFP copolymers, termed heterogeneous copolymers, has recently been synthesized and tested in organic dispersion coatings. These polymers offer many of the well known advantages of PVDF in organic coatings but with additional benefits due to their unique polymer microstructure. A general discussion of polymer properties is covered, along with a study conducted to compare coatings prepared from PVDF homopolymers, random VF2/HFP copolymers, and heterogeneous VF2/HFP copoly-mers. Note de contenu : - PVDF homopolymer and random VF2/HFP copolymer properties
- Heterogeneous VF2/HFP copolymer properties
- PVDF homopolymer and VF2/HFP copolymer coating properties
Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=11414
in EUROPEAN COATINGS JOURNAL (ECJ) > N° 6/97 (06/1997) . - p. 624-626[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 002528 - Périodique Bibliothèque principale Documentaires Disponible
Titre : Powder coatings performance : Influence of baking schedules and thickness Type de document : texte imprimé Auteurs : M. Yaseen, Auteur ; K. V. S. N. Raju, Auteur ; Y. Veerabhadara Rao, Auteur Année de publication : 1997 Article en page(s) : p. 628-631 Note générale : Bibliogr. Langues : Anglais (eng) Index. décimale : 667.9 Revêtements et enduits Résumé : Good adhesion and protective properties of powder coatings depend on the quality of pre-treatment, curing schedule, temperature and duration as well as power pack voltage. With an objective to establish these parameters for a commercial black epoxy powder, the changes in physical properties of its coatings have been studied. A coating of 70 -100 pm thickness is found to have good physical properties when backed as per specified temperature and duration. The scratch hardness, gloss and rocker hardness as well as other properties of the powder coatings were found to be optimum when they were stoved at around 180°C. A duration of 15 minutes for stoving the powder coatings at around 180-190°C is found to result in their optimum properties. In order to have good performance of its coatings the commercial black epoxy powder coat may not be subjected to power packed voltage beyond 70-80 kV. The resistance to hot water, detergents and aromatic solvents has been observed to be very good. Note de contenu : - Experimental
- Procedure
- Scratch hardness
- Rocker hardness
- Gloss
- Bend test
- Adhesion
- Resistance to patrol
- Dry film thickness, DFT
- Results and discussion
- Effect of thickness and number of passes
- Effect of stoving temperature
- Effect of stoving time
- Effect of voltage
- Adhesion, flexibility and resistance to petrol
- Other propertiesPermalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=11415
in EUROPEAN COATINGS JOURNAL (ECJ) > N° 6/97 (06/1997) . - p. 628-631[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 002528 - Périodique Bibliothèque principale Documentaires Disponible
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| Code-barres | Cote | Support | Localisation | Section | Disponibilité |
|---|---|---|---|---|---|
| 002528 | - | Périodique | Bibliothèque principale | Documentaires | Disponible |
