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UV-curable waterborne polyurethane dispersions modified with a trimethoxysilane end-capping agent and edge-hydroxylated boron nitride / Huixiang Liu in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 16, N° 5 (09/2019)
[article]
Titre : UV-curable waterborne polyurethane dispersions modified with a trimethoxysilane end-capping agent and edge-hydroxylated boron nitride Type de document : texte imprimé Auteurs : Huixiang Liu, Auteur ; Hong Zhang, Auteur ; Chaohua Peng, Auteur ; Shufan Ren, Auteur ; Conghui Yuan, Auteur ; Weiang Luo, Auteur ; Guorong Chen, Auteur ; Fuqiang He, Auteur ; Lizong Dai, Auteur Année de publication : 2019 Article en page(s) : p. 1479-1492 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Anticorrosion
Caractérisation
Nitrure de boreLe nitrure de bore est un composé chimique du bore et de l'azote, de formule chimique brute BN (nombre égal d'atomes de chaque élément). Le nitrure de bore est isoélectronique avec le carbone et, comme ce dernier, existe sous plusieurs formes polymorphiques, dont l'une est analogue au diamant et l'autre au graphite. La forme diamant est l'un des matériaux les plus durs connus et la forme graphite est un lubrifiant apprécié. De plus, ces deux polymorphes possèdent des propriétés d'absorption radar.
Polymères à terminaison silane
Polymères en émulsion
Polyuréthanes
Revêtements -- Séchage sous rayonnement ultraviolet
Revêtements organiques
Surfaces -- Analyse
TriméthoxysilaneIndex. décimale : 667.9 Revêtements et enduits Résumé : In this study, waterborne polyurethane (WPU) dispersions were prepared using a trimethoxysilane end-capping agent (DAA-GPTMS) derived from diallylamine (DAA), (3-glycidoxypropyl)methyldiethoxysilane (GPTMS) and modified with edge-hydroxylated boron nitride (hBN-OH) nanosheets. The WPU films containing DAA-GPTMS possessed remarkable hydrophobicity and favorable water repellency, attaining a contact angle of 101.2° and a 52% decrease in water absorption relative to those of the pure WPU. When the contents of DAA-GPTMS and hBN-OH were 7.5 wt% and 0.2 wt%, respectively, the synergetic effect between the DAA-GPTMS and the hBN-OH nanosheets greatly enhanced the physical and mechanical properties of the nanocomposite films, i.e., the stress doubled and the Young’s modulus increased by fivefold compared to those of pure WPU. Embedding 0.2 wt% of the hBN-OH nanosheets in the WPU coatings resulted in a lower corrosion current density (1.0 × 10−10 A cm−2) and more positive corrosion potential (− 0.63 V). The results demonstrate that WPU/hBN-OH nanocomposite coatings possess great potential for corrosion protection. Note de contenu : - EXPERIMENTAL PROCEDURES : Materials and chemicals - Synthesis of a triethoxysilane end-capping agent (DAA-GPTMS) - Synthesis of hydroxylated hexagonal boron nitride (hBN-OH) - Synthesis of WPU and WPU/hBN-OH nanocomposites - Preparation of the WPU and hBN-OH/WPU nanocomposite films - Characterization
- RESULTS : Structural characterization - DLS analysis of WPU and WPU/hBH-OH nanocomposite dispersions - Hydrophobicity and water resistance of WPU and WPU/hBN-OH nanocomposite films - Crosslinking degree of the WPU and WPU/hBN-OH nanocomposite films - Mechanical and physical properties of the WPU and WPU/hBN-OH nanocomposite films - Morphology analysis of the fracture surfaces - Anticorrosion performanceDOI : 10.1007/s11998-019-00232-3 En ligne : https://link.springer.com/content/pdf/10.1007%2Fs11998-019-00232-3.pdf Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=33026
in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH > Vol. 16, N° 5 (09/2019) . - p. 1479-1492[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 21154 - Périodique Bibliothèque principale Documentaires Disponible VAE copolymer emulsions in latex paints / Artur Palasz in EUROPEAN COATINGS JOURNAL (ECJ), N° 1 (01/2022)
[article]
Titre : VAE copolymer emulsions in latex paints : Characteristics of formulations for interior applications Type de document : texte imprimé Auteurs : Artur Palasz, Auteur Année de publication : 2022 Article en page(s) : p. 48-51 Langues : Anglais (eng) Catégories : Copolymère éthylène acétate de vinyle
Essais (technologie)
Essais de résilience
Essais dynamiques
Formulation (Génie chimique)
Latex
Liants en phase aqueuse
Polymères en émulsion
Revêtements en phase aqueuse:Peinture en phase aqueuseIndex. décimale : 667.9 Revêtements et enduits Résumé : The properties of four VAE emulsions available on the European market are compared with regards to their properties in latex paint formulations. VAE emulsions are a very important binder in water-borne architectural paints. Their proper characterisation requires extensive laboratory tests and comparisons, among others, of VAE emulsion binders. Results show the difficulties inherent in determining the appropriate VAE emulsion for a process due to the wide range of options. Note de contenu : - Composition of VAE emulsions
- Lack of information
- Comparison of standard VAE emulsions
- Test preparation and methods
- Wet-scrub resistance
- Washability and dirt pick-up index
- Yellowness index exposure test
- Choosing the right VAE emulsion
- Table 1 : Formulations of paints with VAE emulsion
- Table 2 : Scrubbabiity test results
- Table 3 : Test results of washability and dirt pick-up indexEn ligne : https://drive.google.com/file/d/1r72eYE5-ytZ_jvrnjeIW6KB9Q6rg87NT/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=36850
in EUROPEAN COATINGS JOURNAL (ECJ) > N° 1 (01/2022) . - p. 48-51[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 23172 - Périodique Bibliothèque principale Documentaires Disponible Versatile self-crosslinking polyurethane dispersion for low VOC coatings across multiple markets / Aditi Chavannavar in POLYMERS PAINT COLOUR JOURNAL - PPCJ, Vol. 208, N° 4646 (11/2018)
[article]
Titre : Versatile self-crosslinking polyurethane dispersion for low VOC coatings across multiple markets Type de document : texte imprimé Auteurs : Aditi Chavannavar, Auteur ; Jacob P. Brutman, Auteur ; Don M. Barber ; P. Kangas Année de publication : 2018 Article en page(s) : p. 42-45 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Adhésion
Auto-réticulation
Brillance (optique)
Dureté (matériaux)
Essai de dureté
Essais d'adhésion
Formulation (Génie chimique)
Matières plastiques -- Revêtement
Polymères en émulsion
Polyuréthanes
Résistance chimique
Revêtements en phase aqueuse
Vernis en phase aqueuseIndex. décimale : 667.9 Revêtements et enduits Résumé : Although solvent-based coatings are prominent in industrial applications, environmental regulations are pushing coating companies and formulators towards water-based systems". Industrial coatings include applications like household appliances, construction machinery, garage doors, fitness equipment, kitchen flttings, industrial joinery, etc. These are mostly applied on metal and the main function is to protect the substrate and make it aesthetically appealing. Other properties that industrial coatings need to have are adhesion to metal, block resistance and high gloss. In this area, we have benchmarked PUD prototype with PUD A and PUD B in white pigmented formulations. Additionally, we have compared PUD prototype to PUD C, which is a commercially available self-crosslinking PUD marketed for metal and plastic coatings. Table 9 summarises the properties of the resins in this application Note de contenu : - INDUSTRIAL COATING APPLICATIONS : Formulations and application - Application testing on CRS gloss and hardness - Adhesion - Chemical resistance - Block resistance
- CONCLUSION FOR INDUSTRIAL COATINGS
- PLASTIC APPLICATIONS : Formulation and application
- APPLICATION TESTING ON PC/ABS PLASTIC : Gloss - hardness - Chemical resistance - Resistance to sunscreen and insect repellent - Resistance to hand sanitiser - Adhesion to plastic
- CONCLUSION OF PLASTIC COATING STUDY
- Fig. 5 : Gloss and hardness of pigmented formulations
- Fig. 6 : Gloss for plastic coatings
- Fig. 7 : Konig pendulum hardness of the coatings for plastic
- Fig. 8 : Resistance to sunscreen and insect repellent
- Table 9 : Properties of resins in industrial coating study
- Table 10a : White pigmented formulation for PUD prototype
- Table 10b : White pigmented formulation for PUD A
- Table 10c : White pigmented formulation for PUDB
- Table 10d : White pigmented formulationfor PUD C
- Table 11 : Adhesion on CRS
- Table 12 : Cheimcal resistance of coatings
- Table 13 : One hour recovery after chemical resistance testing
- Table 14 : Block resistance of the coatings
- Table 15a : Soft touch, clear, matte formulation for PUD prototype
- Table 15b : Clear, matte formulation for PUD C
- Table 16 : Chemical resistance on plastic
- Table 17 : One hour recovery after chemical resistance testing
- Table 18 : Hand sanitiser resistance
- Table 19 : Adhesion to PC/ABSEn ligne : https://drive.google.com/file/d/1z3xM0GySly3M4eOpKATRBJdvl7c2S7Zg/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=31577
in POLYMERS PAINT COLOUR JOURNAL - PPCJ > Vol. 208, N° 4646 (11/2018) . - p. 42-45[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 20368 - Périodique Bibliothèque principale Documentaires Disponible Versatile waterborne, presents a novel value-in-use waterborne energy curable polyurethane and considers product robustness as a key driver for innovation / Xavier Deruyttere in POLYMERS PAINT COLOUR JOURNAL - PPCJ, Vol. 204, N° 4592 (01/2014)
[article]
Titre : Versatile waterborne, presents a novel value-in-use waterborne energy curable polyurethane and considers product robustness as a key driver for innovation Type de document : texte imprimé Auteurs : Xavier Deruyttere, Auteur Année de publication : 2014 Article en page(s) : p. 18-22 Langues : Anglais (eng) Catégories : Bois -- Revêtements protecteurs
Copolymère uréthane acrylate
Formulation (Génie chimique)
Polyacryliques
Polyalkydes
Polymères en émulsion
Polyuréthanes
Revêtements -- Séchage sous rayonnement ultraviolet:Peinture -- Séchage sous rayonnement ultraviolet
Revêtements en phase aqueuse:Peinture en phase aqueuse
ThermodurcissablesIndex. décimale : 667.9 Revêtements et enduits Résumé : Water-based radiation curable resins are low viscosity alternatives to conventional 100% solid compositions that do not require the use of diluting monomer or solvent and encompass a wide range of chemistries and molecular weights resulting in differentiated product performance suitable for a broad range of applications. Allnex is a pioneer in the development of energy curable polyurethane dispersions (UVPUDs) particularly designed for specialised high-end applications characterised by a rapid curing with low energy consumption. These include, for instance, primers with excellent 'anfeuerung', clear coats with superior mirror effect, top coats suitable for deep cure with high pigment load or hard coats with ultimate scratch and abrasion resistance. More recently, the technology has even been exported outside the usual industrial applications and dedicated waterborne coating formulations have emerged for field-applied applications with high productivity and superior quality. Note de contenu : - Addressing market needs
- The solution
- Numerous formulation options
- Good performance results
- Flash-off drying for better cost-in-use
- Dispersion stability for better processing robustness
- Versatile blending opportunitiesEn ligne : https://drive.google.com/file/d/1vL1ZtCrS1HMOopwOeQU0E5HA0r-KGCM1/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=20245
in POLYMERS PAINT COLOUR JOURNAL - PPCJ > Vol. 204, N° 4592 (01/2014) . - p. 18-22[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 15900 - Périodique Bibliothèque principale Documentaires Disponible Water-based, filed-applied, UV-curable topcoats for wood flooring / J. Arceneaux in POLYMERS PAINT COLOUR JOURNAL - PPCJ, Vol. 201, N° 4559 (04/2011)
[article]
Titre : Water-based, filed-applied, UV-curable topcoats for wood flooring Type de document : texte imprimé Auteurs : J. Arceneaux, Auteur ; Guido Vanmeulder, Auteur ; Stefan Smeets, Auteur Année de publication : 2011 Article en page(s) : p. 20-22 Langues : Anglais (eng) Catégories : Bois -- Finition
Parquets -- Revêtements protecteurs
Polymères en émulsion
Polyuréthanes
Revêtements en phase aqueuse -- Séchage sous rayonnement ultraviolet:Peinture en phase aqueuse -- Séchage sous rayonnement ultravioletIndex. décimale : 667.9 Revêtements et enduits Résumé : UV curing provides many benefits, such as increased productivity and performance and reduced energy consumption and emissions. Initially these benefits could only be enjoyed in factory-applied applications due to the nature of the UV curing equipment required. During the past decade, however, significant developments in portable UV curing technology have made field-applied, UV-curable coatings possible.
For the wood flooring industry, factory-applied coatings are typically UV-cured due to the advantages described above. while initially 100% solids formulations, UV-curable polyuréthane dispersions in water (UV-(PUD), introduced in the late 1990s, provide improved flexibility, adhesion and stain resistance and with lower viscosities and low-VOC content are attractive for spray, curtain and vacuum applications on to wood.
Field-applied, wood floor coatings, until recently however, have required conventional curing, polyurethanes (PU) are the leading type of field-applied floor coatings. Others include conversion varnishes, oils and waxes. Today,j however, there are several UV-curable wood floor coatings in varying stages of commercial development, including 100% solids and waterborne formulations.Note de contenu : - ADAPTING TO FIELD CONDITIONS
- ADVANTAGES OF WATER-BASED SYSTEMS :Waterborne vs 100% solids UV formulations - UV-PUDs vs conventional PUs
- Confirmation through performance testing : Properties ov UV and conventional cured coatings - Focus on PV-PUDs : Properties over time - Focus on UV-PUDs : Single vs two coat systems - Focus on UV-PUDs : Effect of UV doseEn ligne : https://drive.google.com/file/d/1jylVO1NTkE4WEl9oDVyYCs6jBSNKAxTp/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=11490
in POLYMERS PAINT COLOUR JOURNAL - PPCJ > Vol. 201, N° 4559 (04/2011) . - p. 20-22[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 012998 - Périodique Bibliothèque principale Documentaires Disponible Water-based PUDs (polyurethane dispersions) / Navin Mehra in PAINTINDIA, Vol. LVI, N° 2 (02/2006)
PermalinkWaterborne epoxy resins modified by reactive polyacrylate modifier with fluorinated side chains / Hongyi Shi in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 17, N° 2 (03/2020)
PermalinkWaterborne parquet coatings based on polyurethane dispersions / Ayoub Mulla in PAINTINDIA, Vol. LXIV, N° 8 (08/2014)
PermalinkWaterborne polyuréthane dispersions / John Argyropoulos in POLYMERS PAINT COLOUR JOURNAL - PPCJ, Vol. 200, N° 4547 (04/2010)
PermalinkWaterborne resins for industrial wood coatings / Terri Carson in COATINGS TECH, Vol. 19, N° 5 (05-06/2022)
PermalinkWB, 100% solids adhesives for flexible packaging provide solvent alternative / Peter A. Voss in ADHESIVES AGE, Vol. 41, N° 5 (05/1998)
PermalinkWood made beautiful / Paul Swan in POLYMERS PAINT COLOUR JOURNAL - PPCJ, Vol. 203, N° 4583 (04/2013)
PermalinkYmer N120 : use in nonionic polyurethane dispersions / Henrik Bernquist in PAINTINDIA, Vol. LXII, N° 9 (09/2012)
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