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Moisture-cured polyurethanes - High performance surface-tolerant economical solution for heavy duty protective coatings / Prashant Gangwar in PAINTINDIA, Vol. LXI, N° 10 (10/2011)
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Titre : Moisture-cured polyurethanes - High performance surface-tolerant economical solution for heavy duty protective coatings Type de document : texte imprimé Auteurs : Prashant Gangwar, Auteur Année de publication : 2011 Article en page(s) : p. 62-66 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Polyuréthanes
Réticulation à l'humidité
Revêtements organiques
Revêtements protecteursIndex. décimale : 667.9 Revêtements et enduits Résumé : The benefits and uses of moisture-cured polyurethane coatings are described in this paper. Special attention is given to 1) the coatings chemistry, 2) the effects of ambient temperature and humidity on dry times, 3) steps needed for manufacturing storage stable moisture curing polyurethanes coatings, and 4) suitable applications for moisture-cured polyurethanes. Note de contenu : - FACTORS AFFECTING THE ECONOMIC OF CORROSION
- SURFACE PREPARATION METHODS USED
- SELECTION OF APPROPRIATE COATING
- MOISTURE-CURED POLYURETHANE COATINGS FOR NEW CONSTRUCTION, MAINTENANCE AND OVERCOAT PAINTING : Shop painting for new construction - Maintenance painting - Overcoat painting
- MOISTURE-CURED PU PROTECTION SYSTEMS
- PERFORMANCE OF MCU PRIMERS CONTAINING FILLERS AND EXTENDERS
- MCUs SPECIFICATION
- MOISTURE-CURED POLYURETHANE TECHNOLOGY
- MANFUCATURING STEPS FOR A SUCCESSFUL MOISTURE-CURED COATINGPermalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=12395
in PAINTINDIA > Vol. LXI, N° 10 (10/2011) . - p. 62-66[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 13430 - Périodique Bibliothèque principale Documentaires Disponible Moisture cured urethane coatings - A review / Shashidhar Dayanand Thoutu in PAINTINDIA, Vol. LXIV, N° 4 (04/2014)
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Titre : Moisture cured urethane coatings - A review Type de document : texte imprimé Auteurs : Shashidhar Dayanand Thoutu, Auteur Année de publication : 2014 Article en page(s) : p. 51-57 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Polyuréthanes
Réticulation à l'humidité
Revêtements:PeintureIndex. décimale : 667.9 Revêtements et enduits Résumé : Moisture curable one component polyurethane coatings are versatile products having numerous advantages over two component polyurethane coatings. The concepts, chemistry have been discussed, with some examples and feedback from International market, specifically from USA, where these products are in use by Federal Government department, for number of applications, mainly to save labour, time and money, resulting in early completion of projects, without major shutdown.
Special attention given to 1) the coatings chemistry, 2) the effects of ambient temperature and humidity on drying time,3) Steps needed for manufacturing storage stable moisture curing polyurethanes coatings, and 4) Suitable applications for moisture cured polyurethanes.Note de contenu : - POLYURETHANE TECHNOLOGY : Major classification - Type of polyurethane coatings - One component
- TYPE II - MOISTURE CURED POLYURETHANE COATINGS : Background - Moisture-curing chemistry - Formulating one-component moisture-cure coatings - Formulation - Additives - Manufacturing step for a successful moisture cured coating - Processing and application - Performance of MCU primers containing fillers and extenders - Coating properties of moisture cured polyurethane : 1. Adhesion - 2. Adhesion to damp surfaces - 3. Chemical and solvent resistance - Other mechanical properties - Range of moisture cure polyurethane - 1. Aluminium - 2. Micaceous iron oxide - 3. Zinc dust - Moisture curing polyurethane used as top coat - Moisture cure polyurethane coating for new constructions and as maintenance coatings
- MOISTURE-CURE POLYURETHANES - LATEST DEVELOPMENTS IN VOC-FREE CONFORMAL COATINGSEn ligne : https://drive.google.com/file/d/1fzDvhkxBJhbsSp63mkLacHsCQUf4qt4Y/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=21346
in PAINTINDIA > Vol. LXIV, N° 4 (04/2014) . - p. 51-57[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 16245 - Périodique Bibliothèque principale Documentaires Disponible Moisture-permeable polyurethanepressure-sensitive adhesive addresses needs of wearable devices / Makito Nakamura in ADHESIVES & SEALANTS INDUSTRY (ASI), Vol. 27, N° 5 (05/2020)
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Titre : Moisture-permeable polyurethanepressure-sensitive adhesive addresses needs of wearable devices Type de document : texte imprimé Auteurs : Makito Nakamura, Auteur ; Haru Kawasaki, Auteur ; Hitoshi Shimona, Auteur ; Chitoshi Suzuki, Auteur Année de publication : 2020 Article en page(s) : p. 24-27 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Adhésifs à usages médicaux
Adhésifs dans les équipements électriques/électroniques
Adhésifs sensibles à la pression
Adhésion
Dents -- Soins et hygiène
Humidité
Médecine -- Appareils et matériel
Perméabilité
Polyacryliques
Polymères en médecine
Polyuréthanes
Prothèses dentaires
SiliconesLes silicones, ou polysiloxanes, sont des composés inorganiques formés d'une chaine silicium-oxygène (...-Si-O-Si-O-Si-O-...) sur laquelle des groupes se fixent, sur les atomes de silicium. Certains groupes organiques peuvent être utilisés pour relier entre elles plusieurs de ces chaines (...-Si-O-...). Le type le plus courant est le poly(diméthylsiloxane) linéaire ou PDMS. Le second groupe en importance de matériaux en silicone est celui des résines de silicone, formées par des oligosiloxanes ramifiés ou en forme de cage (wiki).Index. décimale : 668.3 Adhésifs et produits semblables Résumé : It is difficult to simultaneously achieve both moderate adhesion to the skin and strong adhesion to a wearable device, but a new polyurethane pressure-sensitive adhesive is providing a solution.
Wearable devices are used in medicine to continuously monitor signals such as electrocardiograms and electroencephalograms. They can also be used to monitor physical conditions during exercise. To improve the accuracy of the analysis, many studies have been conducted by directly attaching wearable devices to the skin using a pressure-sensitive adhesive (PSA) sheet.
When a PSA sheet is continuously applied for an extended time, however, the user's skin becomes macerated due to the moisture generated from their skin. This increases the amount of peeled stratum corneum (outer layer of the skin). PSAs used in this application must meet several requirements, including: patient/user safety, appropriate adhesiveness to the skin, reduction of the humidity that results from sweat after application, and strong adhesion to the wearable device.
In response to all of these demands, studies have been conducted using a silicone PSA and an acrylic PSA for wearable devices. The acrylic PSA was found to have insufficient moisture permeability, and there are problems with sweating that may occur if it is applied for a long time. On the other hand, the silicone PSA can reduce the humidity from sweat due to its moisture permeability caused by its high free volume. It is difficult to simultaneously achieve both moderate adhesion to the skin and strong adhesion to the wearable device.Note de contenu : - Harnessing the power of polyurethane
- Moisture permeability
- Amount of peeled stratum corneum
- Adhesive strength to various adherends
- Safety study
- Achieving safety and effectiveness
- Fig. 1 : Moisture vapor transmission rate (MVTR) of PSA sheets measured by dry and wet methods
- Fig. 2 : Amount of peeled stratum corneum for each PSA
- Fig. 3 : Appearance of peeled PSA sheets after exercise
- Fig. 4 : Adhesive strength of PSAs to skin and various plastics
- Table 1 : Appearance of the skin after a patch testsEn ligne : https://www.adhesivesmag.com/articles/97751-moisture-permeable-polyurethane-pres [...] Format de la ressource électronique : https://www.adhesivesmag.com/articles/97751-moisture-permeable-polyurethane-pressure-sensitive-adhesive-addresses-needs-of-wearable-devices Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=34259
in ADHESIVES & SEALANTS INDUSTRY (ASI) > Vol. 27, N° 5 (05/2020) . - p. 24-27[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 21763 - Périodique Bibliothèque principale Documentaires Disponible 21868 - Périodique Bibliothèque principale Documentaires Disponible Molecular relaxation phenomena during accelerated weathering of a polyurethane coating / B. M. Dilhan Fernando in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 5, N° 1 (03/2008)
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Titre : Molecular relaxation phenomena during accelerated weathering of a polyurethane coating Type de document : texte imprimé Auteurs : B. M. Dilhan Fernando, Auteur ; Shi Xiaodong, Auteur ; Stuart G. Croll, Auteur Année de publication : 2008 Article en page(s) : p. 1-9 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Essais accélérés (technologie)
Polyuréthanes
PyrolyseLa pyrolyse est la décomposition ou thermolyse d'un composé organique par la chaleur pour obtenir d'autres produits (gaz et matière) qu'il ne contenait pas. L'opération est réalisée en l'absence d'oxygène ou en atmosphère pauvre en oxygène pour éviter l'oxydation et la combustion (L’opération ne produit donc pas de flamme). Il s'agit du premier stade de transformation thermique après la déshydratation.
Elle permet généralement d'obtenir un solide carboné, une huile et un gaz. Elle débute à un niveau de température relativement bas (à partir de 200 °C) et se poursuit jusqu'à 1 000 °C environ. Selon la température, la proportion des trois composés résultants est différente.
Relaxation moléculaire
Revêtements -- DétériorationIndex. décimale : 667.9 Revêtements et enduits Résumé : Results from a polyester-urethane (PU) coating system under accelerated weathering showed that crosslink density, obtained from high-temperature modulus data, diminished due to chain scission. However, Tg and room-temperature tensile modulus both increased with weathering. Molecular relaxation phenomena in polymers have long been investigated to explore changes occurring in a polymer at temperatures below its glass transition and were explored for an explanation to supplement chemical degradation for these observations. Relaxation was quantified using "enthalpy recovery" which first increased with exposure, then diminished. The concurrent physical and chemical aging effects were characterized by tracking nonexponentiality in the spectrum of relaxation times, and the size of "co-operatively relaxing regions" deduced from relaxation around the glass transition. Mechanical relaxation in this coating extended longer than cycle periods typical of accelerated weathering, suggesting that frequency effects might be important when comparing accelerated to natural weathering. DOI : 10.1007/s11998-007-9077-1 En ligne : https://link.springer.com/content/pdf/10.1007%2Fs11998-007-9077-1.pdf Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=3608
in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH > Vol. 5, N° 1 (03/2008) . - p. 1-9[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 009979 - Périodique Bibliothèque principale Documentaires Disponible
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Titre : A more sustainable future : Novel antimicrobial technologies to enhance surface durability and longevity Type de document : texte imprimé Auteurs : James Rapley, Auteur Année de publication : 2023 Article en page(s) : p. 34-38 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Antimicrobiens
Durée de vie (Ingénierie)
Métaux lourds -- Produits de remplacement
Polyacryliques
Polyuréthanes
Revêtements en phase aqueuse -- Additifs
Revêtements organiquesIndex. décimale : 667.9 Revêtements et enduits Résumé : Water-based coatings can be notoriously difficult to treat with traditional antimicrobial technologies, and issues such as clumping, non-uniformity and coating defects can reduce yields and hinder coating aesthetics. These technologies also tend to rely on heavy-metal formulations, which require regulatory approval in certain markets. Novel, heavy-metal-free antimicrobial technologies offer sustainable benefits. Note de contenu : - Built-in antimicrobial control to fight surface bacteria
- Technical challenges of water-based coatings
- Heavy-metal-free development for regulatory compliance
- Effective inhibition of bacterial growth
- Adhesion maintained with novel functionality
- Durable additive to support sustainability goalsEn ligne : https://drive.google.com/file/d/1R1xl7F8WbY8kYTkpWeVHrjUtTnwsEjTd/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=39462
in EUROPEAN COATINGS JOURNAL (ECJ) > (06/2023) . - p. 34-38[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 24072 - Périodique Bibliothèque principale Documentaires Disponible 24073 - Périodique Bibliothèque principale Documentaires Disponible PermalinkMorphology and thermal behavior of TPU/PP blends modified with maleic anhydride grafted SEBS-g-MA block copolymer / Vesna Ocelic Bulatovic in INTERNATIONAL POLYMER PROCESSING, Vol. XXXII, N° 1 (03/2017)
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PermalinkMotion sensing light guides / Mohammadreza Naeimirad in KUNSTSTOFFE INTERNATIONAL, Vol. 112, N° 3 (2022)
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PermalinkLes mousses polymères poreuses : un avenir prometteur pour l'ingénierie chimique / David Edouard in L'ACTUALITE CHIMIQUE, N° 479 (12/2022)
PermalinkMS sealants : A comparative study of performance properties / Allan Hutchinson in ADHESIVES AGE, Vol. 39, N° 4 (04/1996)
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PermalinkPermalinkNano-cerium dioxide synergistic potential on abrasion resistance and surface properties of polyurethane-nanocomposite coatings for esthetic and decorative applications on wood / Akbar Mastouri Mansourabad in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 17, N° 6 (11/2020)
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PermalinkNanosan nanofibers represent the next breakthrough in anti-pollution treatments / Laura Frazier in SOFW JOURNAL, Vol. 143, N° 10 (10/2017)
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PermalinkNanoscale protection for high-performance / Atman Fozdar in EUROPEAN COATINGS JOURNAL (ECJ), N° 7-8 (07-08/2019)
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PermalinkNanosilica particle technology in solventborne, high gloss 2-pack PUR clear coats for plastics / Marco Heuer in DOUBLE LIAISON, N° 597 (03/2014)
PermalinkNanosilica reinforced waterborne siloxane-polyurethane nanocomposites prepared via "click" coupling in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 11, N° 4 (07/2014)
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PermalinkNanostructured and hollow polyurethane dispersions / A. Lubnin in SURFACE COATINGS INTERNATIONAL. PART B : COATINGS TRANSACTIONS, Vol. 89, B3 (09/2006)
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PermalinkNanotechnology-enhanced biocomposites for greener technologies / Özgür Seydibeyoglu in JEC COMPOSITES MAGAZINE, N° 79 (03/2013)
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PermalinkPermalinkNatural and synthetic clay-filled coatings for insulation barrier applications / Roy T. Fox in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 13, N° 1 (01/2016)
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