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Formulation high-performance waterborne acrylic : Direct-to-metal coatings under 25 g/L VOC / Kathleen Auld in COATINGS TECH, Vol. 17, N° 9 (09/2020)
[article]
Titre : Formulation high-performance waterborne acrylic : Direct-to-metal coatings under 25 g/L VOC Type de document : texte imprimé Auteurs : Kathleen Auld, Auteur ; Matthew Padaon, Auteur ; Leo J. Procopio, Auteur Année de publication : 2020 Article en page(s) : p. 20-29 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Adhésion
Anticorrosifs
Anticorrosion
Application directe sur le métal
Essais de brouillard salin
Formation de film
Formulation (Génie chimique)
Polyacryliques
Résistance à l'humidité
Revêtements en phase aqueuse
Revêtements organiquesIndex. décimale : 667.9 Revêtements et enduits Résumé : Waterborne direct-to-metal (DTM) coatings for the protection of steel infrastructure are currently in demand because they allow the end user to reduce volatile organic compound (VOC) emissions, promote higher safety standards, and take advantage of sustainable technology. Raw material and formulation modifications necessary to reach low-VOC content must be carefully designed, as typical approaches often lead to trade-offs in properties such as block, corrosion, and dirt pickup resistance (DPUR). Today, waterborne acrylic DTM coatings at 50 g/L VOC with a good balance of properties are available, but a demand for even lower VOC content exists. This article describes a new acrylic resin for formulating DTM coatings at a VOC level further reduced to less than 25 g/L, while also demonstrating the highest standards of exterior durability and corrosion resistance. A comparison to currently available low-VOC resins and DTM coatings will be described to highlight the advantages of the new binder. Note de contenu : - Table 1 : Gloss white formulation DTM-1
- Table 2 : Comparison of different coalescent packages for LTFF with binder AC-1
- Table 3 : Comparison of experimental and commercial DTM coatings for LTFF
- Table 4 : Testing results for gloss, hardness, DPUR, and oil softening
- Table 5 : Results of dry and wet crosshatch tape adhesion, rated accordint to ASTM D3359
- Table 6 : Results for humidity resistance testing in a Cleveland condensation cabinet with rating for blistering after and 500 h of exposure on both smooth CRS and BHRS substrates
- Fig. 1 : Film formation mechanism for a pigmented coating based on a conventional acrylic latex
- Fig. 2 : Film formation mechanism for a pigmented coating based on latex-pigment composite technology such as in AC-1
- Fig. 3 : 60° gloss retention of experimental and commercial DTM coatings on QUV-A exposure
- Fig. 4 : Block resistance ratings of DTM coatings
- Fig. 5 : Picture of panels after 1000 h salt spray corrosion resistance according to ASTM B117. Coatings were applied to BHRS panels. Note that the pictures for COM-2 and COM-3 were taken after 342 h and 500 h of exposure, respectivelyEn ligne : https://drive.google.com/file/d/1JVtuCWcWAOxRWBKMyg2p2kkL4ps59KTO/view?usp=share [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=34489
in COATINGS TECH > Vol. 17, N° 9 (09/2020) . - p. 20-29[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 22267 - Périodique Bibliothèque principale Documentaires Disponible Fractionation effects of polystyrene on acylation reaction and their adhesive and corrosive properties / Ahmet Okudan in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 10, N° 5 (09/2013)
[article]
Titre : Fractionation effects of polystyrene on acylation reaction and their adhesive and corrosive properties Type de document : texte imprimé Auteurs : Ahmet Okudan, Auteur ; F. Sinan, Auteur Année de publication : 2013 Article en page(s) : p. 631-640 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Acylation
Adhésion
Anhydrides
Anticorrosion
Métaux -- Revêtements protecteurs
Polystyrène
Séparation (technologie)Index. décimale : 667.9 Revêtements et enduits Résumé : First, polystyrene (PS) was fractionated using solvent-precipitation methods; then the chemical modification of PS was investigated in the presence of Lewis acid [BF3·O(C2H5)2] catalyst with some anhydrides such as phthalic anhydride, glutaric anhydride, maleic anhydride, and propionic anhydride. The amount of the polyfunctional groups bonded to polymer structures changed depending on the molecular weight of the polymer, and more functional groups connected to the highest-molecular-weight fraction. The amount of the bonded functional groups was determined with the chemical analysis method. The structures of PS functionalized with anhydrides were confirmed by FTIR, 1H NMR, and thermogravimetric studies. Their adhesion capability and corrosion resistance against metals have been investigated under various conditions. The results showed that the addition of functional groups to PS increases its adhesion capability and corrosion resistance. This increase is attributed to the quantity of the functional groups bonded to PS. Note de contenu : - Materials
- Fractionation
- Determination of the molecular weights
- Chemical modification of fractionated ps (FPS) (general procedure)
- Measurements and analysis
- Chemical analyses
- Coating properties of MPS
- Determination of the adhesion properties
- Determination of the corrosion resistanceDOI : 10.1007/s11998-013-9479-1 En ligne : https://link.springer.com/content/pdf/10.1007%2Fs11998-013-9479-1.pdf Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=19797
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Code-barres Cote Support Localisation Section Disponibilité 15618 - Périodique Bibliothèque principale Documentaires Disponible 15679 - Périodique Bibliothèque principale Documentaires Disponible Fully automated process for blasting and priming steel in INTERNATIONAL SURFACE TECHNOLOGY (IST), Vol. 13, N° 1 (2020)
[article]
Titre : Fully automated process for blasting and priming steel Type de document : texte imprimé Année de publication : 2020 Article en page(s) : p. 16-17 Langues : Anglais (eng) Catégories : Acier L'acier est un alliage métallique utilisé dans les domaines de la construction métallique et de la construction mécanique.
L'acier est constitué d'au moins deux éléments, le fer, très majoritaire, et le carbone, dans des proportions comprises entre 0,02 % et 2 % en masse1.
C'est essentiellement la teneur en carbone qui confère à l'alliage les propriétés du métal qu'on appelle "acier". Il existe d’autres métaux à base de fer qui ne sont pas des aciers comme les fontes et les ferronickels par exemple.
Anticorrosion
Ateliers de peinture industrielle
Automatisation
Convoyeurs
Métaux -- Revêtements protecteursIndex. décimale : 667.9 Revêtements et enduits Résumé : Parts up to 16 metres in length can pass through the roller conveyor blast machine in the new fully automated two-in-one corrosion protection line installed by a major steel supplier. One manual and two automatic mixing stations allow for a large amount of flexibility when it comes to colour choices. Note de contenu : - The design and steelwork departments work hand-in-hand
- Efficient links between all the parts of the line
- Highly flexible painting process
- Fig. 1 : The profiles are fed into the system in bundles and separated on a cross-conveyor. After this they are grouped together into a batch 3200 mm wide and loaded onto the plate line, where they take priority
- Fig. 2: The corrosion protection line, which was designed as a two-in-one concept consists of a profile line and a main/plate line with separate loading stations, a painting unit, a dryer and a thermal post-combustion system, plus three unloading areas
- Fig. 3 : The components of the line were welded at seven small and five large stationsPermalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=35077
in INTERNATIONAL SURFACE TECHNOLOGY (IST) > Vol. 13, N° 1 (2020) . - p. 16-17[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 21892 - Périodique Bibliothèque principale Documentaires Disponible A functional fluoropolymer powder coating for chemical process applications / W. P. Kosar in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 4, N° 1 (03/2007)
[article]
Titre : A functional fluoropolymer powder coating for chemical process applications Type de document : texte imprimé Auteurs : W. P. Kosar, Auteur ; S. Morris, Auteur Année de publication : 2007 Article en page(s) : p. 51-58 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Anticorrosifs
Anticorrosion
Hexafluoropropylène
Polyfluorure de vinylidène
Résistance chimique
Revêtements poudre:Peinture poudreIndex. décimale : 667.9 Revêtements et enduits Résumé : Copolymers of vinylidene fluoride and hexafluoropropylene are well known for their chemical resistance and high purity. Extruded piping, molded parts, and sheet linings find extensive use in chemical process applications. A new powder coating has been developed which is based on this copolymer resin to augment existing products and applications. This powder coating is easy to apply, particularly for odd-shaped parts, and can be applied at high thicknesses (>2.5 mm). This powder coating can be a cost-effective alternative to stainless steel and glass linings. A description of the coating process and selected applications are presented. Chemical exposure data are also presented, comparing this functional fluoropolymer powder coating with uncoated stainless steel. DOI : 10.1007/s11998-007-9009-0 En ligne : https://link.springer.com/content/pdf/10.1007%2Fs11998-007-9009-0.pdf Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=3670
in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH > Vol. 4, N° 1 (03/2007) . - p. 51-58[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 007149 - Périodique Bibliothèque principale Documentaires Disponible 008267 - Périodique Bibliothèque principale Documentaires Disponible Functional & specialty coatings for enhanced end use performance / Mukesh Kumar Madhup in PAINTINDIA, Vol. LXIX, N° 11 (11/2019)
[article]
Titre : Functional & specialty coatings for enhanced end use performance Type de document : texte imprimé Auteurs : Mukesh Kumar Madhup, Auteur Année de publication : 2019 Article en page(s) : p. 88-98 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Acier L'acier est un alliage métallique utilisé dans les domaines de la construction métallique et de la construction mécanique.
L'acier est constitué d'au moins deux éléments, le fer, très majoritaire, et le carbone, dans des proportions comprises entre 0,02 % et 2 % en masse1.
C'est essentiellement la teneur en carbone qui confère à l'alliage les propriétés du métal qu'on appelle "acier". Il existe d’autres métaux à base de fer qui ne sont pas des aciers comme les fontes et les ferronickels par exemple.
Adhésion
Anticorrosifs
Anticorrosion
Epoxydes
Essais de brouillard salin
Hydrophobie
Matériaux -- Propriétés fonctionnelles
Polyuréthanes
Résistance à l'abrasion
Revêtement antireflet
Revêtements anti-graffitis
Revêtements bi-composant
Revêtements organiques
Revêtements protecteurs
Surfaces -- NettoyageIndex. décimale : 667.9 Revêtements et enduits Résumé : The coating materials which provide specific performance outcomes are called functional and specialty coatings. Application of functional coatings are becoming increasingly popular with the technology progress in material science field and continuous research in specialty coating segment. By using right functional/specialty coating, it is possible to achieve specific coating propergies like anti-corrosion, anti-corrosion, anti-erosion, anti-wear and chemical resistance, infra-red rejection, enhanced light transmission, electrical dissipation etc. Applications of these coatings are carried out over variety of substrates including but aluminum, glass etc. to deliver the special properties for which it is designed. Note de contenu : - INTRODUCTION : Anticorrosive coatings - Specimen preparation - Antireflection coating - Principle of AR coating - Specimen preparation for testing antireflection property - Antigraffiti coating with hydrophobic property - Specimen preparation for testing antigraffiti property
- Fig. 1 : Representation of an electrochemical cell which causes anode to degrade in presence of electrolyte
- Fig. 2 : Metallic corrosion in environment in presence of water/moisture and formation of electrochemical cell
- Fig. 3 : 3M scotchkote anticorrosion coating after 50000 Hrs. in salt spray as per ASTM B-117
- Fig. 4 : Principle of reflection and enhancement of reflection of light using nanocoating
- Fig. 5 : Comparative %T (gain) of wavelength between 300-1200 nm for coated and uncoated glass. Increase of 2.5~3.0% light tranmission (single side coated glass)
- Fig. 6 : Figure depicting schematic representation of surface morphology for repellency of dirt and easy to clean property
- Fig. 7 : Determination of graffiti resistance by D6578/D6578M - 13
- Fig. 8 : Antigraffiti coating having hydrophobic property applied over coated and uncoated glass substrate
- Fig. 9 : 60 days exposed glass panels and water washed with same force
- Fig. 10 : Adhesion of the coating over, direct on FRP, PU coaing and mild steel (emery cleaned)
- Fig. 11 : Hot water soak adhesion tested specimens for 38 days at 95°C
- Fig. 12 : Comparative study of advanced abrasion resistance epoxy coating (AREC) versus conventional 2K liquid epoxy coating for abrasion resistance testing as per ASTM D4060
- Table 1 : Various test properties of advanced anticorrosion 2 pack epoxy coatingEn ligne : https://drive.google.com/file/d/1DtlhhQ7xuv3X2QA-DdsnZT0xoZZSImqx/view?usp=share [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=33636
in PAINTINDIA > Vol. LXIX, N° 11 (11/2019) . - p. 88-98[article]Réservation
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