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Comparative study of photoinitiator curing efficiency using regression data analysis / C.-H. Chang in JOURNAL OF COATINGS TECHNOLOGY (JCT), Vol. 70, N° 886 (11/1998)
[article]
Titre : Comparative study of photoinitiator curing efficiency using regression data analysis Type de document : texte imprimé Auteurs : C.-H. Chang, Auteur ; T. Nguyen, Auteur Année de publication : 1998 Article en page(s) : p. 23-27 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Analyse des données
Cétones
Etudes comparatives
Photoamorceurs (chimie)
Photochimie
Polyacrylates
Réticulation (polymérisation)
Revêtements
Revêtements -- AdditifsIndex. décimale : 667.9 Revêtements et enduits Résumé : Regression data analysis was used to compare two alphahydroxy ketone, 1-hydroxycyclohexyl phenyl ketone (HCPK) and 2-hydroxy-2-methyl-1phenyl-propan-1-one (HMPP) and two phosphine oxide, 2,4,6-trimethylbenzoyl diphenyl phosphine oxide (TPO) and bis (2,6-dimethoxybenzoyl)2,4,4-trimethyl pentyl phosphine oxide (DMBAPO) photoinitiators in a thin coating application. Phosphine oxide is inherently more efficient, especially in white pigmented systems than alpha hydroxy ketone because of its stronger and broader absorption at longer wavelength. Due to molecular weight dilution effect, it is usually required to have a higher TPO concentration in a formulation than HCPK or HMPP to overcome oxygen inhibition. On the molecular level, however, DMBAPO is the most reactive photoinitiator among all of them. Data analysis also suggests that the number of initiating free radicals generated by DMBAPO is twice of that generated by HCPK or HMPP or TPO. This study also confirms that in thin coating applications the use of either nitrogen blanket or photoinitiator blend is a good method for increasing productivity and reducing formulation cost. Note de contenu : - REGRESSION DATA ANALYSIS
- RESULTS AND DISCUSSION : Univerate regression analysis - Multivariate regression analysisPermalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=18054
in JOURNAL OF COATINGS TECHNOLOGY (JCT) > Vol. 70, N° 886 (11/1998) . - p. 23-27[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 003555 - Périodique Bibliothèque principale Documentaires Disponible Comparing UV acrylate performance in laminating adhesives for durable electronics applications / Jin Lu in ADHESIVES & SEALANTS INDUSTRY (ASI), Vol. 22, N° 9 (09/2015)
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Titre : Comparing UV acrylate performance in laminating adhesives for durable electronics applications : Several innovative materials can meet the requirements of laminating adhesives Type de document : texte imprimé Auteurs : Jin Lu, Auteur Année de publication : 2015 Article en page(s) : p. 21-26 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Adhésifs -- Séchage sous rayonnement électronique
Adhésifs -- Séchage sous rayonnement ultraviolet
Adhésifs sensibles à la pression
Assemblages collés
Diélectriques
Essais de pelage
Essais dynamiques
Oligomères
Polyacrylates
Résistance aux conditions climatiques
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).
StratifiésIndex. décimale : 668.3 Adhésifs et produits semblables Résumé : Laminating adhesives are used for bonding two substrates together. They can be used in a variety of applications, such as food packaging, aerospace, automobiles, electronics or solar panels. The major technologies include solventborne, waterborne, two-component urethanes and UV-curable resins. UV technology is rapidly gaining acceptance in a variety of industries due to its environmental and economic advantages.
During recent years, market demand has been strong for liquid optically clear adhesives (LOCA) for display or touchscreen applications. Key performance requirements include strong bonding strength to the substrates, excellent reliability, high optical clarity and superior moisture resistance. For high-quality displays, low dielectric constant bonding adhesives are also necessary.
The moisture barrier performance of UV/EB-cured materials has been discussed in previous publications.2-3 Here, we will examine the durability properties of UV-cured acrylates under three weathering conditions, including Q-Panel laboratory ultraviolet (QUV) testing, 85°C/85% relative humidity and freeze-thaw cycles. The key properties evaluated are optical clarity characterized by percentage of UV-Vis transmission and T-peel strength. In the end, we will discuss the dielectric properties of different types of oligomers.Note de contenu : - RELIABILITY PROPERTY TESTS : Sample preparation - Weathering tests - T-Peel test - UV-Vis spectra
- DIELECTRIC PROPERTY TESTS : Sample preparation - Dielectric constantEn ligne : http://www.adhesivesmag.com/articles/94114-comparing-uv-acylate-performance-in-l [...] Format de la ressource électronique : Web Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=25643
in ADHESIVES & SEALANTS INDUSTRY (ASI) > Vol. 22, N° 9 (09/2015) . - p. 21-26[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 17437 - Périodique Bibliothèque principale Documentaires Disponible Comparison of finishing application for aliphatic polyurethane dispersions and polyurethane/polyacrylate composite emulsions / Shuling Chai in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. CV, N° 2 (02/2010)
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Titre : Comparison of finishing application for aliphatic polyurethane dispersions and polyurethane/polyacrylate composite emulsions Type de document : texte imprimé Auteurs : Shuling Chai, Auteur ; Zhongyi Zhang, Auteur Année de publication : 2010 Article en page(s) : p. 41-50 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Alliages polymères
Composés aliphatiques
Cuirs et peaux
Dispersions et suspensions
Emulsions
Polyacrylates
PolyuréthanesIndex. décimale : 675 Technologie du cuir et de la fourrure Résumé : Aliphatic and aromatic cationic aqueous polyurethane (PU-1, PU-2), aliphatic anionic aqueous polyurethanes (PU-3, PU-4) were prepared with polyether glycol, polyether polyol, toluene diisocyanate and isophorone diisocyanate as raw materials. The core-shell polyurethane/polyacrylate composite emulsions (PUA-5, PUA-6) as well as interpenetrating PUA composite emulsions (PUA-7£¬PUA-8) were prepared by seeded emulsion polymerization, the aliphatic anionic aqueous PU dispersions were used as seed particles, glycidyl methacrylate was used as the bridge of core and shell in second stage polymerization. A study using different finishing applications for pigskin garment leather was carried out with the aliphatic anionic PU dispersion, the core-shell and interpenetrating structure PUA hybrid emulsions as film forming agents. The wet rub fastness, solvent resistance, flex resistance, adhesive fastness of the coating in finished leather were measured respectively. The results are as follows: (1) the anionic PU dispersions, the core-shell and interpenetrating PUA composite emulsions showed good film forming, good covering grain damage and mending properties, and strong adhesive force to leather. The finished leathers were soft, flat, smooth, non-sticky and their grain patterns were clear; (2) The interpenetrating PUA is better than core-shell PUA and the core-sell PUA is better than the PU dispersion at wet rub fastness, solvent resistance, adhesive resistance. Both PU dispersion and core-shell PUA were better than the interpenetrating PUA at flex resistance by comparison. En ligne : https://drive.google.com/file/d/1ZlcX0wzWcoxb_Ue3dND3kXA-U6eTnyNA/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=8163
in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA) > Vol. CV, N° 2 (02/2010) . - p. 41-50[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 011917 - Périodique Bibliothèque principale Documentaires Disponible Comparison of textile print quality between inkjet and screen printings / S. Kiatkamjornwong in SURFACE COATINGS INTERNATIONAL. PART B : COATINGS TRANSACTIONS, Vol. 88, B1 (03/2005)
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Titre : Comparison of textile print quality between inkjet and screen printings Type de document : texte imprimé Auteurs : S. Kiatkamjornwong, Auteur ; H. Noguchi, Auteur ; P. Putthimai, Auteur Année de publication : 2005 Article en page(s) : p. 25-34 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Caractérisation
Colorimétrie
CotonLe coton est une fibre végétale qui entoure les graines des cotonniers "véritables"(Gossypium sp.), un arbuste de la famille des Malvacées. Cette fibre est généralement transformée en fil qui est tissé pour fabriquer des tissus. Le coton est la plus importante des fibres naturelles produites dans le monde. Depuis le XIXe siècle, il constitue, grâce aux progrès de l'industrialisation et de l'agronomie, la première fibre textile du monde (près de la moitié de la consommation mondiale de fibres textiles).
Encre en phase aqueuse
Impression jet d'encre
Impression sur étoffes
Liants
Pigments
Polyacrylates
Rhéologie
SérigraphieIndex. décimale : 667.9 Revêtements et enduits Résumé : This research was concerned with an investigation of cotton print qualities that were achieved by inkjet printing and screen printing. The acrylic binder, S-711, with a pigment-to-binder (P/B) ratio of 1:2 (by weight) was used to produce one set of inkjet inks. BR-700 was used in the creation of another set of screen inks. Furne silica was added to the screen ink to increase the viscosity so that the ink would meet the rheology requirements. The viscosity and flow behaviour of both inks were acceptable. Both the ink viscosity and the particle-size distribution were slightly increased during storage at an ambient temperature for two months. The inkjet ink printed tabrics were pretreated with a solution of poly(ethylene oxide) having 2 to 3 million Dalton molecular weight. The printed fabrics from both inks were analysed for colour saturation, colour gamut and their volume, density, tone reproduction, stiffness, air permeability, and crock fastness. The type, concentration and P/B ratio were exactly the same in both inks in the pigment dispersions. Even though the loaded ink volume on fabrics, by inkjet, was tuned to be approximately the same in optical density as that given by the screen ink, by a multipass mode printing, both printed fabrics gave different colour saturations, colour gamuts and tone reproductions. The colour gamut volume, stiffness, air permeability and crock fastness of the inkjet inks are superior to those of screen inks. The print quality of the inkjet printing on cotton fabric was, thus, better. However, the inkjet ink printed cotton fabric needed to be printed three times to produce the same colour and tone reproduction as that produced by screen printing. Note de contenu : - EXPERIMENTAL : Preparation of non-treated cotton fabric - Preparation of pretreated cotton fabric
- PREPARATION OF AQUEOUS-BASED PIGMENTED INKS : Inkjet ink - Screen ink - Inkjet printing - Screen printing - Characteristics of binders - Characterisation of printed cotton fabric - Colour measurement
- RESULTS AND DISCUSSION : Characterisation of binders and inks - Rheological perspective of inkjet ink - Rheological perspective of the screen inks - Print quality - Colour values - Tone reproduction and ink density
- PRINTED FABRIC PROPERTIES : Stiffness - Air permeability properties - Crock fastness
- COMPARISON OF INKJET INKS AND SCREEN PRINTING INKS ON COTTON : Effect of fabric pretreatment on the colour gamut and the tone reproduction - Effect of the ink deposition on colour - Effect of ink deposition on the printed fabric stiffness and crock fastness
- Table 1 : Colour gamut volume of inkjet ink and screen ink
- Table 2 : Colour saturation of inkjet ink and screen ink
- Table 3 : Dry and wet crock fastness of the inkjet ink and screen ink printed cotton fabricsDOI : 10.1007/BF02699704 En ligne : https://link.springer.com/content/pdf/10.1007/BF02699704.pdf Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=5433
in SURFACE COATINGS INTERNATIONAL. PART B : COATINGS TRANSACTIONS > Vol. 88, B1 (03/2005) . - p. 25-34[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 000389 - Périodique Bibliothèque principale Documentaires Disponible Comportement rhéologiques de solutions de polymères associatifs en présence de particules de talc / C. Charnay in LES CAHIERS DE RHEOLOGIE, Vol. XVI, N° 3 (10/1999)
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Titre : Comportement rhéologiques de solutions de polymères associatifs en présence de particules de talc Type de document : texte imprimé Auteurs : C. Charnay, Auteur ; Serge Lagerge, Auteur ; S. Partika, Auteur Année de publication : 1999 Article en page(s) : p. 229-236 Note générale : Bibliogr. Langues : Français (fre) Catégories : Epaississants
Polyacrylates
Rhéologie
Solutions de polymère
TalcIndex. décimale : 532.05 Mécanique des fluides et des liquides - Dynamique (cinétique et cinématique) Résumé : Le comportement rhéologique de solutions de polyacrylates modifiés hydrophobiquement, en l'absence et en présence de particules de talc, a été étudié en fonction de la nature chimique de la base forte (NaOH, KOH) utilisée pour ioniser les fonctions carboxyliques du polymère. Les propriétés rhéologiques de ces solutions de polymères associatifs montrent que la viscosité croit quand le pouvoir structurant du cation augmente. Ainsi, plus le contre ion est structurant, moins les chaînes alkyles du polymère sont solvatées, et de ce fait, les jonctions du réseau formé par les interactions hydrophobes intermoléculaires sont renforcées. L'incorporation progressive de particules de talc s'accompagne aux faibles fractions massiques d'une augmentation de la viscosité et d'un renforcement des propriétés viscoélastiques du système. Cet effet résulte de la formation d'un réseau tridimensionnel dans lequel les particules de talc constituent une partie des nÅ“uds du réseau via l’adsorption des chaînes alkyles sur la partie hydrophobe de la surface des particules. Lorsque la fraction massique des particules dans la suspension augmente 5%, 10% et 20%, on observe la détérioration des propriétés rhéologiques, viscosité et viscoélasticité, liée à la destruction du réseau associatif. Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=25736
in LES CAHIERS DE RHEOLOGIE > Vol. XVI, N° 3 (10/1999) . - p. 229-236[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 002132 - Périodique Bibliothèque principale Documentaires Disponible Conférences Rencontres Matières premières des 4 et 20 mai 2010 / 2010
PermalinkPermalinkCreating the right sensory characteristics / Maria Fe Boo in PERSONAL CARE EUROPE, Vol. 3, N° 3 (09/2010)
PermalinkCrosslinking gradients of a photopolymerized multifunctional acrylate film control mechanical properties / Matthew Hancock in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 16, N° 4 (07/2019)
PermalinkCrosslinking vs. interdiffusion rates in melamine-formaldehyde cured latex coatings : a model for waterborne automotive basecoat / Mitchell A. Winnik in JOURNAL OF COATINGS TECHNOLOGY (JCT), Vol. 71, N° 892 (05/1999)
PermalinkCure behavior of polyester-acrylate hybrid powder coatings / Alan Toman in JOURNAL OF COATINGS TECHNOLOGY (JCT), Vol. 71, N° 893 (06/1999)
PermalinkCure behavior of silicone-epoxies and urethane modified acrylates in interpenetrating polymer networks / L. Price in JOURNAL OF COATINGS TECHNOLOGY (JCT), Vol. 68, N° 854 (03/1996)
PermalinkCured by light, controlled by light / Matthias Bach in EUROPEAN COATINGS JOURNAL (ECJ), N° 10 (10/2011)
PermalinkCuring adhesives : when less intensity is more / Rainer Dörfler in ADHESIVES & SEALANTS INDUSTRY (ASI), Vol. 23, N° 2 (02/2016)
PermalinkDeveloping UV-crosslinkable acrylic hot melt PSAs / G. Auchter in ADHESIVES AGE, Vol. 37, N° 8 (07/1994)
PermalinkDevelopment of topcoat formulations to extend the open time of waterborne coatings / Wouter M. J. Kloosterman in SURFACE COATINGS INTERNATIONAL, Vol. 106.4 (07-08/2023)
PermalinkEffect of artificial weathering and temperature cycling on the performance of coating systems used for wooden windows / Eliska Oberhofnerova in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 15, N° 4 (07/2018)
PermalinkEffect of siloxane-modified polyacrylate on water uptake and anticorrosion mechanism of silicone–epoxy coatings / X. Yuan in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 13, N° 1 (01/2016)
PermalinkEffects of acrylic syntans on thermo-mechanical and swelling behaviour of chrome-tanned bovine leather - A comparative assessment / Pankaj Kumar Tyagi in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 102, N° 2 (03-04/2018)
PermalinkElectron beam radiation improves bond strength of UV adhesives / Melanie Kresak in ADHESION - ADHESIVES + SEALANTS, Vol. 15, N° 2/2018 (2018)
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