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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 properties of a cationic acrylic resin leather finish with a core-shell structure / Sui Zhihui in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 96, N° 3 (05-06/2012)
[article]
Titre : Synthesis properties of a cationic acrylic resin leather finish with a core-shell structure Type de document : texte imprimé Auteurs : Sui Zhihui, Auteur ; Zhao Xin, Auteur ; Song Xumei, Auteur ; Qiang Xihuai, Auteur Année de publication : 2012 Article en page(s) : p. 94-99 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Acrylate de butyle
Amorceurs (chimie)
Analyse thermique
Copolymères en émulsion
Copolymérisation
Fourier, Spectroscopie infrarouge à transformée de
Méthacrylate de méthyle
Microscopie électronique en transmission
Persulfate de potassium
Polyacrylates
Polymères cationiques
Polymérisation en émulsionIndex. décimale : 675 Technologie du cuir et de la fourrure Résumé : A cationic polyacrylate emulsion (CPAE) with a core-shell structure was prepared by seed polymerization. The emulsion copolymerization was carried out with the core monomoers of butyl acrylate (BA) and methyl methacrylate (MMA), the shell monomers of BA, MMA, and a home-made cationic monomer with the initiator potassium persulfate. The structure of CPAE was characterized. No 'C=C' double bond was detected in the structure of CPAE by FT-IR and 1H-NMR spectra, indicating that the polymerization reaction was complete. DSC curves showed that there were two glass transition temperature in the structure of CPAE, indicating that the emulsion particle featured a core-shell structure. The core-shell structure of CPAE was also confirmed by TEM observation. Many improvements to the coating properties emerged when CPAE was used as a leather finishing agent. The result leathers has uniform and clean grain and comfortable handle. The coating had strong adhesion and its resistance to wet and dry rub fastness was up to grade 4.5. Note de contenu : - EXPERIMENTAL PROCEDURES : Materials - Apparatus - Synthesis methods - Examination of CPAE
- FINISHING APPLICATION TEST
- RESULTS AND DISCUSSION : FT-IR spectrum analysis - H-NMR analysis - DSC analysis - TEM analysis - ? potential measurement results
- APPLICATION RESULTS OF FINISHING AGENTEn ligne : https://drive.google.com/file/d/1lPGTB2qsaGP2-9FH612VDRzStRMjKozo/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=15255
in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC) > Vol. 96, N° 3 (05-06/2012) . - p. 94-99[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 13973 - Périodique Bibliothèque principale Documentaires Disponible Synthesising hybrid binders with nano-ceria for wood protection / M. Aguirre in SURFACE COATINGS INTERNATIONAL, Vol. 96, 1 (02/2013)
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Titre : Synthesising hybrid binders with nano-ceria for wood protection Type de document : texte imprimé Auteurs : M. Aguirre, Auteur ; Jose R. Leiza, Auteur ; M. Paulis, Auteur Année de publication : 2013 Article en page(s) : p. 38-43 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Bois -- Revêtements protecteurs
Encapsulation
Liants
Miniémulsions
Nanoparticules
Oxyde de cérium
Polymérisation en émulsionIndex. décimale : 667.9 Revêtements et enduits Résumé : Wood has the potential to be a competitive and sustainable material. However, for outdoor use it is necessary to enhance its performance and long-term durability. The main problem is its high sensitivity to UV degradation. It is common knowledge that light affects wood, causing colour change and/or degradation of the surface. Note de contenu : - NANOPARTICLE ENCAPSULATION MINIMISE AGGREGATION
- EXPERIMENTAL MATERIALS
- CHARACTERISATION TECHNIQUES
- PREPARATION OF THE MINIEMULSION
- SYNTHESIS OF THE HYBRID EMULSION : First step : seed preparation by miniemulsion polymerisation - Second step : seeded demi-batch polymerisation
- NANONPARTICLES SHOW GOOD COMPATIBILITY WITH MONOMER
- HOW THE FINAL EMULSION SYNTHESIS DEVELOPED
- MORPHOLOGY OF THE HYBRID EMULSION PARTICLES
- MORPHOLOGY OF THE FILMSEn ligne : https://drive.google.com/file/d/1NjywEb-RFg3bjFAtWE-2ohwoHZ-qsp6k/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=17573
in SURFACE COATINGS INTERNATIONAL > Vol. 96, 1 (02/2013) . - p. 38-43[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 14700 - Périodique Bibliothèque principale Documentaires Disponible Taking care in dispersion developments / Pavel Vasko in POLYMERS PAINT COLOUR JOURNAL - PPCJ, Vol. 192, N° 4455 (08/2002)
[article]
Titre : Taking care in dispersion developments Type de document : texte imprimé Auteurs : Pavel Vasko, Auteur ; Pavel Holub, Auteur ; Zdenka Kalabova, Auteur Année de publication : 2002 Article en page(s) : p. 22-23 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Antimicrobiens
Emulsifiants
Polymérisation en émulsion
Réduction des composés organiques volatils
Revêtements décoratifs:Peinture décorative
Revêtements en phase aqueuse -- Additifs:Peinture en phase aqueuse -- AdditifsIndex. décimale : 667.9 Revêtements et enduits Résumé : New dispersion developments need to address the need for reasonable care of their community and the environment. The authors explain how this is being carried out.
The current development of waterborne dispersions together with cost/performance characteristics are driven by responsible care for the environment and the community. Biocides, APEO's (Alkyl phenol ethoxylates) and VOC's (Volatile Organic Compounds) are environmental and community issues that are currently in focus. The implementation of the Biocidal Product Directive (BPD 98/8/EC) is imminent. APEO's have been eliminated in many applications, in emulsion polymerisation the exchange is not complete but producers are voluntarily eliminating their use. Recent changes in the regulations concerning the emission of the VOC's have led to a growing interest and need for more environmentally friendly coatings.
New dispersion developments including novel morphology and self crosslinking chemistry have addressed the above needs and contributed to satisfying the market requirements for new products.Note de contenu : - Preservatives
- Biodegradable emulsifiers for emulsion polymerisation
- VOC reduction in decorative paints
- New waterborne dispersions for VOC compliant architectural coatings
- Table : VOC reduction scheme for waterborne paints. (Products based on VOC g/L rady to use including tinters)Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=28034
in POLYMERS PAINT COLOUR JOURNAL - PPCJ > Vol. 192, N° 4455 (08/2002) . - p. 22-23[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 000322 - Périodique Bibliothèque principale Documentaires Disponible The greener route to emulsion polymerisation : eliminating VOCs and formaldehyde / M. Lubik in SURFACE COATINGS INTERNATIONAL, Vol. 95, 5 (10/2012)
PermalinkThe influence of chemical reaction conditions upon poly(styrene-methyl methacrylate-crylic acid) synthesis : Variations in nanoparticle size, colour and deposition methods / Rui D. V. Fernandes in COLORATION TECHNOLOGY, Vol. 136, N° 2 (04/2020)
PermalinkUse of ultrasonic & sound waves energy in paint technology : a review / Amar Rahate in PAINTINDIA, Vol. LXV, N° 2 (02/2015)
PermalinkVarious factors affecting the manufacturing of emulsion polymer / Dr. NKS Raghav in PAINTINDIA, Vol. LXV, N° 9 (09/2015)
PermalinkPermalinkVersatile surfactant for emulsion polymerisation in POLYMERS PAINT COLOUR JOURNAL - PPCJ, Vol. 199, N° 4534 (03/2009)
PermalinkWith green credentials / Ronald Klagge in EUROPEAN COATINGS JOURNAL (ECJ), N° 07-08/2010 (07-08/2010)
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