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Synthesis of a low-temperature self-crosslinking polyacrylate binder with a core-shell structure and its application in textile pigment printing / Xiaoyu Zhang in COLORATION TECHNOLOGY, Vol. 134, N° 4 (08/2018)
[article]
Titre : Synthesis of a low-temperature self-crosslinking polyacrylate binder with a core-shell structure and its application in textile pigment printing Type de document : texte imprimé Auteurs : Xiaoyu Zhang, Auteur ; Yi Zhong, Auteur ; Xiaofen Sui ; Hong Xu ; Lingpin Zhang ; Zhiping Mao Année de publication : 2018 Article en page(s) : p. 299-307 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Analyse thermique
Auto-réticulation
Basses températures
Calorimétrie
Composés organiques -- Synthèse
Core-Shell
Couches minces -- Propriétés mécaniques
Essais dynamiques
Fourier, Spectroscopie infrarouge à transformée de
Impression sur étoffes
Latex
Liants
Méthacrylate d'acétoacétoxyéthyle
Microscopie électronique en transmission
Polyacrylates
Polymérisation en émulsion
ThermogravimétrieIndex. décimale : 667.3 Teinture et impression des tissus Résumé : A core‐shell acrylate binder for pigment printing containing acetoacetoxyethyl methacrylate (AAEM) in its shell was synthesised via semicontinuous seeded emulsion polymerisation. Self‐crosslinking occurs when curing at low temperatures without releasing formaldehyde. The core‐shell structure of the binder produces prints with a high block resistance and good film‐forming properties, which can avoid clogging the screens during the printing process and help to acquire a soft handle for textiles. Transmission electron microscopy (TEM) analysis demonstrated that the latex particle had a core‐shell structure of size ca. 120 nm. Differential scanning calorimetry (DSC) testing showed that polyacrylate (PA)‐modified AAEM exhibited two apparent Tg, providing further information about the formation of the soft core‐hard shell latex particles. Crosslinking degree tests, thermogravimetric analysis (TGA) and testing of the mechanical properties indicated that self‐crosslinking of AAEM took place at 100 °C, thereby enhancing the thermostability and mechanical properties of the latex films. The softer and non‐stick handle, excellent rubbing fastness, and higher K/S were obtained by further padding the printed fabric with amino silicon softener. The chemical structures of the surfaces of the printed fabrics were studied by Fourier Transform‐infrared (FTIR), and results confirmed that the crosslinking reaction between the amino of the softener and remaining acetoacetoxy functional group (AcAc) of AAEM had taken place. Note de contenu : - EXPERIMENTAL : Chemicals - Materials - Equipment - Synthesis of core-shell latex - Preparation of latex films - Preparation of latex film - Pigment printing - Measurement and analysis
- RESULTS AND DISCUSSION : Polymerisation - Morphology - Thermal analysis - Mechanical properties - Pigment printing - After treatmentDOI : 10.1111/cote.12339 En ligne : https://onlinelibrary.wiley.com/doi/epdf/10.1111/cote.12339 Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=30925
in COLORATION TECHNOLOGY > Vol. 134, N° 4 (08/2018) . - p. 299-307[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 20089 - Périodique Bibliothèque principale Documentaires Disponible Synthesis of (Sty-co-BA-AA) latexes including ZnO and TiO2 nanoparticle by miniemulsion polymerization / Ali Delibas in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 18, N° 3 (05/2021)
[article]
Titre : Synthesis of (Sty-co-BA-AA) latexes including ZnO and TiO2 nanoparticle by miniemulsion polymerization Type de document : texte imprimé Auteurs : Ali Delibas, Auteur Année de publication : 2021 Article en page(s) : p. 717-727 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Caractérisation
Jaunissement (défaut)
Latex
Miniémulsions
Nanoparticules
Polymérisation en émulsion
Revêtements -- Propriétés mécaniques
Styrène-co-butylacrylate-acide acryliqueIndex. décimale : 667.9 Revêtements et enduits Résumé : Herein, it is reported that synthesis of poly(styrene-co-butyl acrylate) latexes containing ZnO and TiO2 nanoparticles was carried out using miniemulsion polymerization. The synthesized latexes and films cast from them were characterized by dynamic light scattering (DLS), X-ray diffraction (XRD), scanning electron microscopy energy dispersive X-ray (SEM-EDAX), transmission electron microscopy (TEM), and thermogravimetric analysis (TGA). Stress–strain and DMA analysis was performed for the mechanical analysis of the films prepared from latexes. The particle sizes of the latexes were about 60 nm for pure latex and latex only containing ZnO and TiO2, while the particle size for latex containing nanoparticle mixture was measured as 120 nm. XRD, SEM-EDAX, and TEM analysis results showed that the nanoparticles were well dispersed in latex. When the mechanical analysis results were compared, latex films including 2% ZnO nanoparticles were found to be stronger. DMA analysis showed that the glass transition temperature (Tg) values of the polymers were between 0 and 10°C and the nanoparticles were not effective in changing the Tg values. Latex films were exposed to 254 nm UV light to determine their yellowing. According to the colorimetric measurement, ZnO nanoparticle-embedded films were found to be more resistant to yellowing. Note de contenu : - EXPERIMENTAL : Materials - Experimental procedure - Characterization
- RESULTS AND DISCUSSION : XRD results - TGA results - SEM and TEM results - Mechanical properties of the latex films - Yellowing test of the latex films
- Table 1 : Miniemulsion polymerization recipe for nanocomposite latexes
- Table 2 : Effect of nanoparticles on SC, zeta potential, and particle size
- Table 3 : Stress–strain results of the prepared latex films
- Table 4 : Yellowing results of the latex filmsDOI : https://doi.org/10.1007/s11998-020-00436-y En ligne : https://link.springer.com/content/pdf/10.1007/s11998-020-00436-y.pdf Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=35924
in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH > Vol. 18, N° 3 (05/2021) . - p. 717-727[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 22785 - Périodique Bibliothèque principale Documentaires Disponible Synthesis of styrene and n-butyl acrylate latex polymers modified by functional monomers and their waterborne paint applications / Gökhan Akbulut in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 19, N° 5 (09/2022)
[article]
Titre : Synthesis of styrene and n-butyl acrylate latex polymers modified by functional monomers and their waterborne paint applications Type de document : texte imprimé Auteurs : Gökhan Akbulut, Auteur ; Hayal Bulbul Sonmez, Auteur Année de publication : 2022 Article en page(s) : p. 1421-1435 Note générale : Bibliogr. Langues : Américain (ame) 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
Caractérisation
Dureté (matériaux)
Formulation (Génie chimique)
Latex
Matériaux -- Propriétés fonctionnelles
Métaux -- Revêtements:Métaux -- Peinture
Monomères
Polyacryliques
Polymères -- Synthèse
Revêtements en phase aqueuse:Peinture en phase aqueuseIndex. décimale : 667.6 Peintures Résumé : Emulsion polymerization acrylic latex polymers (in short latex polymers), crucial ingredients of waterborne paints, provide continuous film formation during the drying stage and act as one of the major factors that determine the performance of paints. Modification of latex polymers is an ongoing process to improve paint performance and it can be accomplished by various methods. In this study, styrene and n-butyl acrylate latex polymers are modified by three functional monomers (methacrylamidoethyl ethylene urea (MAEEU), dimethylaminoethyl methacrylate (DMAEMA), and glycidyl methacrylate (GMA)) alone or combined in different amounts in latex polymer formulations. Impacts of these functional monomers both on latex polymers, and paints made from these latex polymers are investigated. The characterization of the latex polymers are analyzed by differential scanning calorimetry (DSC), minimum film forming temperature (MFFT), dynamic light scattering (DLS), Fourier transform infrared spectroscopy (FTIR), and transmission electron microscopy (TEM). Scrub resistance, whiteness, hiding power, glossiness, hardness, contact angle, adhesion on annealed glass and hot-dip galvanized steel surfaces, and color retention properties of the paints are examined. The results are compared with a nonfunctional reference and a commercial styrene-acrylic-based latex polymer, separately. The outcomes confirm that alone and the combinations of these monomers in styrene-acrylic-based latex polymers improve the paint by enhancing scrub resistance, better adhesion on surfaces and the ability to control hydrophobicity and color efficiency. Note de contenu : - EXPERIMENTAL SECTION : Materials - Synthesis of latex polymers - Preparation of the paints - Characterization of the Latex Polymers
- PAINTS
- RESULTS AND DISCUSSION : Characterization of latex polymers and their films
- CHARACTERIZATION OF THE PAINTS
- Table 1 : Materials for emulsion polymerization and paint preparation
- Table 2 : The amounts of functional monomers used in formulations
- Table 3 : Variables in latex polymer formulations
- Table 4 : Specifications of Acronal 290D
- Table 5 : Paint formulation
- Table 6 : Characterization results of the reference and latex polymers with one functional monomer
- Table 7 : Characterization results of the latex polymers that had at least two functional monomers
- Table 8 : Characterization results of the paints
- Table 9 : Hardness of the paints
- Table 10 : Blister test results of the paints
- Table 11 : Adhesion on hot-dip galvanized steelDOI : https://doi.org/10.1007/s11998-022-00616-y En ligne : https://link.springer.com/content/pdf/10.1007/s11998-022-00616-y.pdf Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=38280
in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH > Vol. 19, N° 5 (09/2022) . - p. 1421-1435[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 23672 - Périodique Bibliothèque principale Documentaires Disponible Tackifying resin dispersion increases heat resistance / Eric Moussu in ADHESIVES AGE, Vol. 37, N° 1 (02/1994)
[article]
Titre : Tackifying resin dispersion increases heat resistance Type de document : texte imprimé Auteurs : Eric Moussu, Auteur ; J. Cazalis, Auteur Année de publication : 1994 Article en page(s) : p. 24-26 Langues : Américain (ame) Catégories : Adhésifs en phase aqueuse
Adhésifs en phase solvant
Formulation (Génie chimique)
Hautes températures
Latex
polymères vinyliques
Polyuréthanes
Résistance thermique
Tackifiant (adhésifs)
Tests comparatifsIndex. décimale : 668.3 Adhésifs et produits semblables Résumé : Dermulsene 92, from a French manufacturer, is tested in several water-based adhesive formulations, compared to solvent-based glue. Comparable results were achieved relating to performance issues. Note de contenu : - Aqueous formulation
- Vinyl latexes and polyurethanesEn ligne : https://drive.google.com/file/d/1ikwzjEy3Tso5Y7g3Afm3_tOwzw8GYiaB/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=20803
in ADHESIVES AGE > Vol. 37, N° 1 (02/1994) . - p. 24-26[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 001036 - Périodique Bibliothèque principale Documentaires Disponible The effect of paper surface-coating pigments and binders on colour gamut and printing parameters / Arif Ozcan in COLORATION TECHNOLOGY, Vol. 137, N° 5 (10/2021)
[article]
Titre : The effect of paper surface-coating pigments and binders on colour gamut and printing parameters Type de document : texte imprimé Auteurs : Arif Ozcan, Auteur ; Mustafa Tutak, Auteur Année de publication : 2021 Article en page(s) : p. 445-455 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Alcool polyvinylique
Argile
CalandrageLe calandrage est une opération qui consiste à faire passer un matériau entre deux cylindres pour le lisser ou le lustrer, ou pour produire un film ou une feuille. Des matériaux de plus faible épaisseur (produits semi-finis, feuilles, plaques, films, crêpes) peuvent être obtenus par calandrage d'un système thermoplastique ou élastomère entre des cylindres éventuellement chauffants.
Une calandreuse comporte au moins deux rouleaux contrarotatifs, dont l'écartement est ajustable. Plusieurs passages entre les cylindres peuvent être réalisés.
Cette opération est par exemple utilisée pour fabriquer des revêtements de sols et de murs, des nappes, de l'ameublement, de la maroquinerie et des articles gonflables.
Pour les pâtes de faible viscosité, une calandreuse peut servir de mélangeur en formulation.
En papeterie, l'opération de calandrage permet d'obtenir différents états de surface de la feuille de papier, notamment pour les papiers couchés. Selon le degré de calandrage (pression, température de chauffe), le papier sera plus ou moins lissé et brillant.
Calcaire
Caoutchouc styrène-butadiène
Colorimétrie
Formulation (Génie chimique)
Impression numérique
Latex
Liants
Papier -- Revêtements
Papier et carton couché
Pigments inorganiques
Revêtements organiques
ZéolitesIndex. décimale : 686.23 Impression Résumé : One of the most important factors affecting the printing quality of printing processes is the surface structure of the printing material. The surface structure of the paper formed by fibres can be modified and smoothed out using coatings that make it more suitable for printing. In this study, three different types of coating pigments were prepared and applied onto an 80 g/m2 base paper surface. Styrene butadiene latex and polyvinyl alcohol were used as binders, and three different types of pigments, precipitated calcium carbonate, clay and zeolite, were used as pigments in the prepared coatings. The physical and optical properties of all calendered and non-calendered papers were measured and compared. All the prints were produced with an ink-jet digital printing machine upon the coated and calendered papers for recording the printability parameters. The ΔE00 differences between colours, tone values, colour gamuts and colour gamut volumes were measured from the surfaces of the printed papers. The results showed that the coating type had a better effect on print quality, and that the printability properties of coated papers and even calendered papers were very good. Note de contenu : - Table 1 : Physical and optical properties of base paper
- Table 2 : Coating formulation
- Table 3 : Physical and optical properties of coated and calendered papers with precipitated calcium carbonate (PCC)
- Table 4 : Physical and optical properties of coated and calendered papers with clay
- Table 5 : Physical and optical properties of coated and calendered papers with zeolite
- Table 6 : Comparison of the ΔE00 colour difference values for base paper and coated papers according to ISO 12647-2, paper type 4
- Table 7 : Colour gamut volumes obtained using ColorThink Pro v.3DOI : https://doi.org/10.1111/cote.12540 En ligne : https://onlinelibrary.wiley.com/doi/epdf/10.1111/cote.12540 Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=36488
in COLORATION TECHNOLOGY > Vol. 137, N° 5 (10/2021) . - p. 445-455[article]Réservation
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