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Use of fluoropolymer permanent release coatings for molded polyurethane foam production / Leandro Figueiredo in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 9, N° 6 (11/2012)
[article]
Titre : Use of fluoropolymer permanent release coatings for molded polyurethane foam production Type de document : texte imprimé Auteurs : Leandro Figueiredo, Auteur ; Pedro Bandeira, Auteur ; Adélio Mendes, Auteur ; Margarida M. S. M. Bastos, Auteur ; Fernà o D. Magalhà es, Auteur Année de publication : 2012 Article en page(s) : p. 757-764 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Démoulage
Fluoropolymères
Isocyanates
Mousses plastiques
Polytétrafluoréthylène
Polyuréthanes
RevêtementsIndex. décimale : 667.9 Revêtements et enduits Résumé : The problem of adhesion of polyurethane foams to fluoropolymer permanent release mold coatings was studied. Two coatings, based on polytetrafluoroethylene (PTFE) and perfluoroalkoxy polymer (PFA) aqueous dispersions, respectively, were applied on aluminum plates, and the foam release performance evaluated. The PTFE coating displayed gradual loss of antiadhesion properties with consecutive exposure to the reactive mixture, which was associated with isocyanate surface penetration. Penetrant mass uptake experiments, performed on free films, indicated that PTFE retains about 10 times more isocyanate than PFA, probably because of its porous surface morphology. A synergistic effect was found by applying a very small quantity of a waterborne release agent on the PTFE coating, before every foam molding cycle. The release agent formed a protective barrier that minimized contact of the coating with the reactive mixture, allowing for stable and robust foam release performance. The problem of polyurea build-up, associated with the use of aqueous release agents, was not observed because of the small amounts of compound used. Note de contenu : - EXPERIMENTAL : Materials - Polyurethand foam formulation and molding - Evaluation - Evaluation of the release force and release force and release work - FTIR spectrocopy - Scanning electron microscopy - Penetrant mass uptake measurements
- RESULTS AND DISCUSSION : Surface morphology - Penetrant mass uptake - Foam release performance of PTFE and PFA coatings - Performance of PTFE coating combined with release agentDOI : 10.1007/s11998-012-9413-y En ligne : https://link.springer.com/content/pdf/10.1007%2Fs11998-012-9413-y.pdf Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=16661
in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH > Vol. 9, N° 6 (11/2012) . - p. 757-764[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 14359 - Périodique Bibliothèque principale Documentaires Disponible Use of optical density and TiO2 light scattering / R. T. Abrahao in POLYMERS PAINT COLOUR JOURNAL - PPCJ, Vol. 206, N° 4624 (09/2016)
[article]
Titre : Use of optical density and TiO2 light scattering Type de document : texte imprimé Auteurs : R. T. Abrahao, Auteur ; R. Umemura, Auteur ; Michael P. Diebold, Auteur Année de publication : 2016 Article en page(s) : p. 33-36 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Dioxyde de titane
Dispersions et suspensions
Lumière -- Absorption
Lumière -- Diffusion
Revêtements en bâtiment:Peinture en bâtiment
Revêtements:PeintureIndex. décimale : 667.9 Revêtements et enduits Résumé : Optical density is a technique to evaluate light scattered by particles suspended in a liquid paint. The authors discusses how to identify optimisation potential in architectural coatings.
Optical density (OD) is a technique for evaluating the amount of light scattered by particles suspended in a liquid paint. Using an improved OD procedure, it is now possible to quantify titanium dioxide (TiO2) light scattering efficiency in a paint without knowing the complete paint formulation. This information can be coupled with conventional spread rate measurements, which measure the scattering coefficient of the TiO2 in the dry film, allowing the paint formulator to determine the likely benefit of improving initial TiO2 dispersion or improving dispersion stability in an under performing paint.
In addition, application of the improved OD test and the conventional spread rate procedure to South and Latin American commercial paints revealed how well the TiO2 particles were dispersed in the liquid paint and how evenly they were distributed in the dry paint film - parameters termed the TiO2 dispersion efficiency and the formulation efficiency, respectively. A wide range of efficiencies was seen in the commercial paints, with almost 20% of the paints demonstrating an opportunity to benefit from improved TiO2 dispersion efficiency, while 55% showed an opportunity to improve formulation efficiency.Note de contenu : - TiO2 dispersion in dry film
- Optical density
- Spread rate
- Application to commercial paintsEn ligne : https://drive.google.com/file/d/1FJTiJU_bezN76NEs74yJ56ZX2Pu2nb-s/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=27743
in POLYMERS PAINT COLOUR JOURNAL - PPCJ > Vol. 206, N° 4624 (09/2016) . - p. 33-36[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 18317 - Périodique Bibliothèque principale Documentaires Disponible Use of thermally stimulated current to measure properties of coatings / C. A. Kumins in JOURNAL OF COATINGS TECHNOLOGY (JCT), Vol. 66, N° 835 (08/1994)
[article]
Titre : Use of thermally stimulated current to measure properties of coatings Type de document : texte imprimé Auteurs : C. A. Kumins, Auteur ; C. J. Knauss, Auteur ; R. J. Ruch, Auteur Année de publication : 1994 Article en page(s) : p. 79-84 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Adhésion
Adsorption
Carbonate de calciumLe carbonate de calcium (CaCO3) est composé d'un ion carbonate (CO32-) et d'un ion calcium (Ca2+), sa masse molaire est de 100,1 g/mole.
C'est le composant principal du calcaire et de la craie, mais également du marbre. C'est aussi le principal constituant des coquilles d'animaux marins, du corail et des escargots.
Chlorure de polyvinyle
Concentration pigmentaire volumique
Copolymères
Couches minces
Polyacrylates
Revêtements:Peinture
TempératureIndex. décimale : 667.9 Revêtements et enduits Résumé : Both neat and calcium carbonate (CaCO3) filled films of an acrylate latex terpolymer with one percent free acid groups were cast on aluminum foil. Films of varying degrees of adhesion to aluminum were studied by measuring thermally stimulated current (TSC) as a function of temperature, film thickness, and degree of pigment loading. Films with the best adhesion gave the highest values of TSC over a large temperature range and also a large increase in TSC as the films delaminated. Duplicate measurements of TSC versus temperature for the same film gave good reproducibility. TSC curves of the neat polymer films gave a peak near the glass transition temperature (Tg) of the latex. The pigmented polymer films gave a peak about 5°C above the Tg of the latex.
The terminus of the interphase region for the neat polymer was in the range of 250-350 microns. Extrapolation to zero TSC for the filled system gave a pigment volume concentration (PVC) near 38%, which was postulated to be a measure of the critical pigment volume concentration (CPVC).Note de contenu : - RESULTS : Degree of adhesion - Noise - Reproducibility - Current peaks - Film thickness Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=18681
in JOURNAL OF COATINGS TECHNOLOGY (JCT) > Vol. 66, N° 835 (08/1994) . - p. 79-84[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 003469 - Périodique Bibliothèque principale Documentaires Disponible 003482 - Périodique Bibliothèque principale Documentaires Exclu du prêt Use of ultrasonic & sound waves energy in paint technology : a review / Amar Rahate in PAINTINDIA, Vol. LXV, N° 2 (02/2015)
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Titre : Use of ultrasonic & sound waves energy in paint technology : a review Type de document : texte imprimé Auteurs : Amar Rahate, Auteur Année de publication : 2015 Article en page(s) : p. 53-56 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Agents dispersants (chimie)
Emulsifiants
Fragmentation
Homogénéisation (technologie)
Polymérisation en émulsion
Revêtements:Peinture
UltrasonsIndex. décimale : 667.9 Revêtements et enduits Résumé : Ultrasonic & sound energy is the cost effective energy shows high potential for the paint & coating technology. Ultrasonic energy is now used by paint and pharmaceutical industries for its excellence in emulsification, homogenization & wet grinding. Use of sound energy safe & environmentally friendly is the future challenge for the paint technologist. Note de contenu : - Ultrasonic energy
- Ultrasound is used in the formulation of coatings
- Emulsion polymerization
- Nanosize material in high performance coating
- Ultrasonic homogenizing/emulsifying/dispersing/deagglomerationEn ligne : https://drive.google.com/file/d/13-lLvarVQzc0XzgRuOig2yyxjk5BgwsZ/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=23499
in PAINTINDIA > Vol. LXV, N° 2 (02/2015) . - p. 53-56[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 17056 - Périodique Bibliothèque principale Documentaires Disponible Useful conversion chart for a paint technologist / Mukund Hulyalkar in PAINTINDIA, Vol. LXV, N° 5 (05/2015)
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Titre : Useful conversion chart for a paint technologist Type de document : texte imprimé Auteurs : Mukund Hulyalkar, Auteur Année de publication : 2015 Article en page(s) : p. 96 Langues : Anglais (eng) Catégories : Revêtements:Peinture
Unités de mesure -- Tables de conversionIndex. décimale : 667.6 Peintures Note de contenu : - Distance
- Area
- Volume
- Area/volume
- Weight
- Pressure
- Temperature
- Film thickness in micronEn ligne : https://drive.google.com/file/d/1n-Zv96MAD2hXls0EkCDPRx6ks6mgfeUp/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=24439
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Code-barres Cote Support Localisation Section Disponibilité 17393 - Périodique Bibliothèque principale Documentaires Disponible Using LCA to select coatings for optimum environmental and cost performance / Nick J. Hazel in JOURNAL OF COATINGS TECHNOLOGY (JCT), Vol. 68, N° 861 (10/1996)
PermalinkUsing melamine crosslinkers in developing high-performance coatings / Dennis E. Erickson in PAINTINDIA, Vol. LI, N° 2 (suppl.) (02/2001)
PermalinkUsing radcure for printed wiring boards - past successes, current hurdles and future challenges / G. Bradley in SURFACE COATINGS INTERNATIONAL, Vol. 92, 2 (03/2009)
PermalinkUsing rheology to improve performance / Adrian Hill in POLYMERS PAINT COLOUR JOURNAL - PPCJ, Vol. 200, N° 4554 (11/2010)
PermalinkUsing visible light to activate antiviral and antimicrobial properties of TiO2 nanoparticles in paints and coatings : focus on new developments for frequent-touch surfaces in hospitals / M. Schutte-Smith in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 20, N° 3 (05/2023)
PermalinkUtilisation des colles adhésifs et peintures dans la construction et l'entretien des bateaux de plaisance / Association Française des Techniciens des Peintures, Vernis, Encres et Adhésifs / Paris : AFTPVA (1995)
PermalinkUtilization of agro waste (CNSL) in coatings / Deepti Shikha in PAINTINDIA, Vol. LXI, N° 9 (09/2011)
PermalinkUtilization of the glycerol phase from biodiesel production for the preparation of alkyd paints / Svetlana Genieva in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 17, N° 5 (09/2020)
PermalinkUV-curable, special coding inks for optical fibers / Gexing Shen in JOURNAL OF COATINGS TECHNOLOGY (JCT), Vol. 71, N° 894 (07/1999)
PermalinkUV-cured micro- and nano- structured smart coatings / Volkmar Stenzel in POLYMERS PAINT COLOUR JOURNAL - PPCJ, Vol. 203, N° 4583 (04/2013)
PermalinkUV-stable electrocoats for corrosion protection and structural bonding in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 16, N° 6 (11/2019)
PermalinkVariation of paints/varnishes viscosity with temperature in B-4 ford cup / Mukund Hulyalkar in PAINTINDIA, Vol. LXIV, N° 10 (10/2014)
PermalinkVers la formation de mono-couches nano-structurées et stimulables de polymères amphiphiles en milieux aqueux / L. Billon in MATERIAUX & TECHNIQUES, Vol. 95, N° 6 (2007)
PermalinkVersatile epoxy acrylate / Graham Clark in POLYMERS PAINT COLOUR JOURNAL - PPCJ, Vol. 199, N° 4543 (12/2009)
PermalinkVersatile surfactant for emulsion polymerisation in POLYMERS PAINT COLOUR JOURNAL - PPCJ, Vol. 199, N° 4534 (03/2009)
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