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Novel heat resistant aqueous dispersions containing phthalazinone / Z. Y. Liu in PAINTINDIA, Vol. LVII, N° 5 (05/2007)
[article]
Titre : Novel heat resistant aqueous dispersions containing phthalazinone Type de document : texte imprimé Auteurs : Z. Y. Liu, Auteur ; J. Y. Wang, Auteur ; Q. L. Yan, Auteur ; Y. Kou, Auteur ; X. G. Jian, Auteur Année de publication : 2007 Article en page(s) : p. 89-100 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Dispersions et suspensions
Hydrophilie
Polyphthalazinone éther nitrile cétones
Revêtements en phase aqueuse:Peinture en phase aqueuseIndex. décimale : 667.9 Revêtements et enduits Résumé : Poly(phthalazinone ether nitrile ketone)s (PPENK) modified with NaOH was studied in order to find a hydrophilic resin applied in heat-resistant waterborne coatings. The properties ofhydrolyzates, HPPENKa (0.5 h), HPPENKb (1.5 h) and HPPENKc (3.5 h), were measured by differential scanning calorimetry (DSC), thermogravimetric analysis (TGA), contact angle (water) and solubility. The structures ofhydrolyzates were confirmed by FT IR and 1H-NMR. The results indicated that the nitrile groups conversion ratio and Ts of hydrolyzates increased whereas the weight loss ratio of HPPENK decreased as hydrolysis time was prolonged. As expected, the hydrophilicity of HPPENK was improved greatly, e.g. when CN conversion ratio was 93.82%, the water contact angles was decreased from 75. 3° of PPENK to 54. 4° of HPPENK. By studying the effect of the different reaction co-solvents, reaction temperature and NaOH concentration on hydrolysis, the optimal synthetic technology could be concluded that it is of 6 N NaOH solution and DMAc as cosolvent at 120°C. Aqueous dispersions based on three modified resins were prepared and their storable stability was in the following order: HPPENKc >HPPENKb >HPPENKa. Especially, the HPPENKc dispersion was not found deposition more than 30 days and played good film-forming property. Cured film properties of HPPENKc as follows: pencil rigidity (6 H), thermal impact resistance (300°C, 24 h), adhesion (grade 1). Curing agents were applied in dispersion, such as Hexamethoxymethyl melamine(HMMM), epichlorohydrin (ECH), triethanol amine, glycerol, etc, among them, HMMM and ECH played excellent curing property. The cooperating emulsification of Span and Tween could improve stability of HPPENK dispersion. Note de contenu : - Structural characterization
- The effect of reaction time on thermal stability of hydrolyzates
- The effect of different alkali concentration on hydrolysis
- Co-solvents in hydrolysis
- Hydrolysis reaction temperature
- The effect of different reaction time on hydrophilicity and solubility of hydrolyzates
- Shelf-life
- Curing agents
- Emulsifier
- Heat resistant properties of cured film of HPPENKPermalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=11485
in PAINTINDIA > Vol. LVII, N° 5 (05/2007) . - p. 89-100[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 008394 - Périodique Bibliothèque principale Documentaires Disponible Novel light stabilisers for waterborne epoxy coatings / Yung-Chi Yang in POLYMERS PAINT COLOUR JOURNAL - PPCJ, Vol. 202, N° 4577 (10/2012)
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[article]
Titre : Novel light stabilisers for waterborne epoxy coatings Type de document : texte imprimé Auteurs : Yung-Chi Yang, Auteur ; Yu-Shu Sung, Auteur ; Chiu Hsiao-Fang, Auteur ; Chein Chih-Hsien, Auteur ; Yao-Hsing Huang, Auteur Année de publication : 2012 Article en page(s) : p. 39-40 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Epoxydes
Photostabilité
Revêtements en phase aqueuse:Peinture en phase aqueuseIndex. décimale : 667.9 Revêtements et enduits Résumé : Comparison study of three light stabilisers dispersed in water and a waterborne epoxy coating. Note de contenu : - Table 1 : Classification of light stabilisers
- Table 2 : Compositions of waterorne epoxy model formation
- Table 3 : Details of screening design with different light stabilisers and test results
- Table 4 : Parameter estimates summary of Fit R2=0.99 R2 Adj=0.99, RMSE=0.913
- Table 5 and 8 : Analysis of variance (Anova)
- Table 6 : The evaluation of optimal results
- Table 7 : Parameter estimates. Summary of Fit R2=0.98 R2 Adj=0.99, RMSE=1.024
En ligne : https://drive.google.com/file/d/1T3CBQpup4SnR15o98BOhiAvq8rh3TQJx/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=16178
in POLYMERS PAINT COLOUR JOURNAL - PPCJ > Vol. 202, N° 4577 (10/2012) . - p. 39-40[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 14225 - Périodique Bibliothèque principale Documentaires Disponible Novel light stabilizers for environmental friendly coatings / Yung-Chi Yang in PAINTINDIA, Vol. LXIV, N° 5 (05/2014)
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[article]
Titre : Novel light stabilizers for environmental friendly coatings Type de document : texte imprimé Auteurs : Yung-Chi Yang, Auteur ; Yu-Shu Sung, Auteur ; Yin-Ting Lai, Auteur ; Shian-Fang Chiou, Auteur ; Chein Chih-Hsien, Auteur ; Yao-Hsing Huang, Auteur Année de publication : 2014 Article en page(s) : p. 72-75 Langues : Anglais (eng) Catégories : Haut extrait sec
Photostabilité
Revêtements en phase aqueuse:Peinture en phase aqueuse
Revêtements poudre:Peinture poudre
Vernis -- Séchage sous rayonnement ultraviolet
Vernis en phase aqueuseIndex. décimale : 667.9 Revêtements et enduits Résumé : High solids, powder, waterborne, UV curable coatings, Waterborne UV curable coatings - the green coatings -have been developed to replace conventional high VOC and solvent-based coatings. It has overcome the disadvantages of traditional solvent-based coatings. However, the green coatings still need light stabilizers to help avoid degradation from sun light and improve weather stability.
Everlight Chemical Industrial Corporation (ECIC) has developed several unique products specifically for green coatings.Note de contenu : - GREEN COATINGS AND LIGHT STABILIZERS
- LIGHT STABILIZERS RECOMMENDED : High-solid coatings - Powder coatings - Waterborne coatings - UV curable coatings - Waterborne UV curable coatingsEn ligne : https://drive.google.com/file/d/1dEYzHRw6W_DQ7qJC4LpQXz3rvM0K7O0f/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=21764
in PAINTINDIA > Vol. LXIV, N° 5 (05/2014) . - p. 72-75[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 16459 - Périodique Bibliothèque principale Documentaires Disponible A novel non-isocyanate and formaldehyde-free technology for solvent- and waterborne systems / Andreas Hermes in SURFACE COATINGS INTERNATIONAL, Vol. 104.6 (11-12/2021)
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[article]
Titre : A novel non-isocyanate and formaldehyde-free technology for solvent- and waterborne systems Type de document : texte imprimé Auteurs : Andreas Hermes, Auteur ; Marcel Meeuwisse, Auteur Année de publication : 2021 Article en page(s) : p. 474-477 Langues : Anglais (eng) Catégories : Formaldéhyde -- Suppression ou remplacement
Isocyanates -- Suppression ou remplacement
Réticulants -- Produits de remplacement
Revêtement en phase solvant
Revêtements en phase aqueuse
Revêtements organiquesIndex. décimale : 667.9 Revêtements et enduits Résumé : The challenges of modern industry are increasingly demanding for paint formulators. Economically, it is necessary to reduce the cost of raw materials to produce excellent quality at lower prices. Technologically, it is necessary to achieve ever increasing performance on the coating system with faster drying times and shorter process cycles. From an environmental point of view, solvent emissions and waste water pollution must be reduced. In terms of health and safety, it is necessary to protect production workers from hazardous substances and to minimise ambient air pollution. allnex's R&D is dedicated to developing sustainable solutions to help formulators meet these challenges.
The wood coatings industry in Europe is divided into two different technology regions and both of them have major challenges to solve. Southern Europe is dominated by 2K polyurethane isocyanate technology, whereas Northern Europe focuses on 2K acid-curing systems. Regarding occupational safety and environmental protection, the emphasis is in both cases on the crosslinking component. European regulations on the labelling of dangerous & hazardous substances have become more restrictive in recent years. European Directive No. 1272/2008 stipulates that formaldehyde at a concentration greater than 0.1% must be labelled as a carcinogen. This also applies to MDI-based isocyanates, which are used on a large scale in Southern Europe. This labelling leads to considerably higher costs, additional protective equipment for production workers, special storage of raw materials and finished products as well as special tare for the transport of the goods to the customer.
Currently there are several new ways to obtain isocyanate- or formaldehyde-free coatings. However, many of these new systems still have limitations in terms of technical performance, choice of substrate or require a modification of the application line, which is associated with additional costs.
The objective of this work is to demonstrate our improvements in the development of safer crosslinkers and coating systems that can be used on conventional equipment. The results presented in this paper are based on simple formulations whose properties have not yet been optimised in terms of flow, rheology, defoaming, deaeration, etc. This adjustment is the responsibility of the formulators and must be determined individually for each application.
This work was carried out as part of the allnex ECOWISETM sustainable program, in which special emphasis is placed on 'green' technologies. Examples include the use of renewable raw materials, the reduction of wastewater pollution and the reduction of emissions of all kinds.Note de contenu : - Solution 1 for solventborne coatings based on acrylate/isocyanate
- Solution 2 for solventborne coatings based on alkyd/urea-formaldehyde systemsEn ligne : https://drive.google.com/file/d/17ZfScbC7b-viuFRspRikz2MLj0Zxw0CJ/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=36647
in SURFACE COATINGS INTERNATIONAL > Vol. 104.6 (11-12/2021) . - p. 474-477[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 23079 - Périodique Bibliothèque principale Documentaires Disponible Novel oil-modified acrylic multi-domain dispersions for wood coatings in SURFACE COATINGS INTERNATIONAL, Vol. 103.3 (05-06/2020)
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[article]
Titre : Novel oil-modified acrylic multi-domain dispersions for wood coatings Type de document : texte imprimé Année de publication : 2020 Article en page(s) : p. 128-131 Langues : Anglais (eng) Catégories : Bois -- Revêtements protecteurs
Essais (technologie)
Essais d'adhésion
Formulation (Génie chimique)
Polyacryliques
Résistance aux conditions climatiques
Résistance chimique
Revêtements -- Finition
Revêtements en phase aqueuse:Peinture en phase aqueuse
Revêtements organiquesIndex. décimale : 667.9 Revêtements et enduits Résumé : Waterborne acrylic dispersions and alkyd emulsions have been extensively used for architectural coatings for decades, each technology having its advantages and drawbacks. While alkyd emulsions generally exhibit very good application characteristics, such as high gloss and good penetration, they lack in performance for weathering resistance. Acrylic dispersions, conversely, are disadvantaged in terms of flow, levelling and appearance, but perform well for outdoor durability. Many attempts have been undertaken to find the balance of performance by hybrid technology approaches. The presented work highlights a novel synthetic approach to oil¬modified acrylic multi-domain dispersions combining acrylic-like outdoor durability with alkyd-like appearance and application properties. Note de contenu : - Technological approach
- Deck stain testing results
- Trim testing results
- Universal substrate adhesion results
- Table 1 : Trim testing formulation
- Table 2 : Xenon testing results according to ISO 4892-2 of white trim coating on ceramic tile
- Table 3 : Chemical resistance testing after 3 hours of exposure. Rating from 0 (no effect on the film surface) to 5 (film deterioration)
- Table 4 : Adhesion testing according to DIN EN IS0 2409 after one week of dryingEn ligne : https://drive.google.com/file/d/1q1ULihJ-EzN9LTWGJ1TQ_PlbM9u7q1ZM/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=34340
in SURFACE COATINGS INTERNATIONAL > Vol. 103.3 (05-06/2020) . - p. 128-131[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 21880 - Périodique Bibliothèque principale Documentaires Disponible Novel oil modified urethane for wook flooring applications / Yuting Li in COATINGS TECH, Vol. 15, N° 6 (06/2018)
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PermalinkNovel path to hydroxyl-functional emulsions for high-performance waterborne two-component polyurethane coatings / Steven Mao in POLYMERS PAINT COLOUR JOURNAL - PPCJ, Vol. 211, N° 4670 (08/2021)
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PermalinkNovel polyamide improves appearance / Makoto Ubukata in EUROPEAN COATINGS JOURNAL (ECJ), N° 9 (09/2021)
PermalinkNovel solutions for wood coatings / Adri van der Waals in POLYMERS PAINT COLOUR JOURNAL - PPCJ, Vol. 199, N° 4532 (01/2009)
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PermalinkNovel technologies and chemistries for waterborne coatings / Timothy F. L. McKenna in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 11, N° 2 (03/2014)
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PermalinkNovel UVA/HALS blend for high performance waterborne coatings / Delphine Kimpel in POLYMERS PAINT COLOUR JOURNAL - PPCJ, Vol. 205, N° 4604 (01/2015)
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PermalinkNovel water-dispersible glycidyl carbamate (GC) resins and waterborne amine-cured coatings / Umesh D. Harkal in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 8, N° 6 (11/2011)
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PermalinkNovel waterborne hyperbranched polyurethane-urea-silica hydrid crosslinked coatings films / Kishore K. Jena in PAINTINDIA, Vol. LXI, N° 12 (12/2011)
PermalinkOffering formulation freedom / Jelle van der Werf in EUROPEAN COATINGS JOURNAL (ECJ), N° 4/2011 (04/2011)
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PermalinkOMYA - Itech - Orgon - Octobre 2011 / Institut National de Recherche et de Sécurité / Paris : INRS (2005)
PermalinkOmyacoat 855-KU. The new titanium dioxide spacer / Chong Su Fah in PAINTINDIA, Vol. LXI, N° 7 (07/2011)
PermalinkOn surface area coverage by an electrostatic rotating bell atomizer / K. Sidawi in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 18, N° 3 (05/2021)
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PermalinkOptimisation of rutile in water based paints / M. Veeramani in PAINTINDIA, Vol. LXX, N° 9 (09/2020)
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PermalinkOptimisation of rutile in water based paints / M. Veeramani in PAINTINDIA, Vol. LXX, N° 10 (10/2020)
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PermalinkOptimisation of rutile in water based paints / M. Veeramani in PAINTINDIA, Vol. LXX, N° 11 (11/2020)
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