An acrylic resin retanning agent with a reinforcing effect - Synthesised by hihg solids content microemulsion copolymerization / Wang Xuechuan in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 89, N° 4 (07-08/2005)  

[article]  inJOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC) > Vol. 89, N° 4 (07-08/2005) . - p. 164-168 Titre : An acrylic resin retanning agent with a reinforcing effect - Synthesised by hihg solids content microemulsion copolymerization Type de document : texte imprimé Auteurs : Wang Xuechuan, Auteur ; An Huari, Auteur ; Sun Ming, Auteur ; Luo Yanhong, Auteur ; Feng Jianyan, Auteur Année de publication : 2005 Article en page(s) : p. 164-168 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Agents de tannage Caractérisation Copolymères en émulsion Croûte (cuir) On entend par "cuir en croûte" des cuirs ayant subi les opérations jusqu'au tannage, à l'exclusion de toute opération de corroyage ou de finissage, mais qui, par opposition aux wet-blue ont été séchés. Cuirs et peaux -- Propriétés mécaniques Cuirs et peaux de porcs Granulométrie laser Haut extrait sec Latex Microémulsions Polyacryliques Polymérisation en émulsion Retannage Tannage organique Wet-blue (tannage) Peau tannée au chrome (le chrome donne une couleur bleue) Index. décimale : 675.2 Préparation du cuir naturel. Tannage Résumé : An acrylic resin nano-size latex whose colloidal particle size was about 20nm and solids content about 25% was prepared by a high solids content semicontinuous microemulsion copolymerization. The experimental product was employed in retanning drop [bottom] splits of pigs aiming to reinforce the leather. The offer of cross-linking agent and functional monomer were varied in the copolymerization experiment and their effect on the reinforcing function was investigated. The effect of colloidal particle size and dosage of nano-size latex on the reinforcing function also was verified. The particle size of the latex was tested with a laser particle size analyzer, and the composition of the copolymer was analyzed by infrared spectrometry. Multifunction material test equipment was used in the physical testing of the retanned leather. The result of the experiment showed: when the dosage of divinylbenzene (DVB) was 1.2% and the dosage of acrylic acid (AA) 0.8%, the reinforcing performance was the highest. When the colloidal particle size decreased from 64.2nm to 16.3nm, the reinforcing effect was also enhanced. The tensile strength increased by 68%, and the tear strength improved 44% after the drop splits of pigs were retanned with 2% acrylic resin nano-size latex (with respect to the shaved wet blue weight). The effect of the dosage of sodium lauryl sulphate (SLS), n-pentanol (PA), ammonium persulfate (ASP) and AA on the colloidal particle size was also studied. Note de contenu : - EXPERIMENTAL DETAILS : Materials - Synthesis - APPLICATION OF NANO-SIZE LATEX IN RETANNING CHROME TANNED PIG DROP SPLITS : Characterization - RESULTS AND DISCUSSION : Colloidal particle size of the microemulsion copolymer - The IR spectra of BA/MMA/DVB copolymers prepared by microemulsion copolymerization - The effect of functional monomer on the reinforcing function - The effect of cross-linking agent on the reinforcing function - The effect of colloidal particle size on the reinforcing function - The relationship between dosage of retanning agent and reinforcing effect - Table 1 : Recipes used in the series of experiments and average particle size of synthesized latexes - Table 2 : Process details for the retanning applications of nano-size latex on wet blue pig drop splits En ligne : https://drive.google.com/file/d/1GoIENUWkqhu85g-LTxdP-0cZzXD-IvPo/view?usp=share [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=39249 [article]

Exemplaires

Code-barres	Cote	Support	Localisation	Section	Disponibilité
aucun exemplaire

Colour and gloss properties of pigment-printed synthetic leather using an ultraviolet-curable water-borne polyurethane acrylate binder and two photoinitiators at different ratios / Gülçin Baysal in COLORATION TECHNOLOGY, Vol. 135, N° 2 (04/2019)  

[article]  inCOLORATION TECHNOLOGY > Vol. 135, N° 2 (04/2019) . - p. 133-142 Titre : Colour and gloss properties of pigment-printed synthetic leather using an ultraviolet-curable water-borne polyurethane acrylate binder and two photoinitiators at different ratios Type de document : texte imprimé Auteurs : Gülçin Baysal, Auteur ; Berdan Kalav, Auteur ; Burcak Karaguzel Kayaoglu, Auteur Année de publication : 2019 Article en page(s) : p. 133-142 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Brillance (optique) Colorimétrie Copolymère uréthane acrylate Copolymères en émulsion Cuir synthétique imprimé Fourier, Spectroscopie infrarouge à transformée de Liants Photoamorceurs (chimie) Pigments Rayonnement ultraviolet Index. décimale : 675 Technologie du cuir et de la fourrure Résumé : This study reports on the colour and gloss properties of pigment-printed polyurethane-based synthetic leather using an ultraviolet (UV)-curable water-borne polyurethane acrylate binder and two types of photoinitiators (Omnirad 819 DW and Omnirad 500) at different ratios. The UV curing of printed synthetic leather samples was conducted with gallium and mercury lamps, either singly or in combination, at three different power levels. Chemical changes in the cured films because of the polymerisation of the UV-curing process were analysed by Fourier Transform-infrared spectroscopy, which showed that the polymerisation reaction occurred after UV curing in both the clear and in the pigmented films. The Omnirad 500 photoinitiator is more effective in surface curing and the Omnirad 819 DW photoinitiator is more effective in deep curing. The Omnirad 500 photoinitiator caused the gloss values to drop significantly, especially in the formulation including both photoinitiators, Omnirad 819 DW and Omnirad 500, at a 1:2 ratio, respectively. In the formulation including a higher ratio of the Omnirad 819 DW photoinitiator, higher gloss values were obtained compared with the formulation including a higher ratio of the Omnirad 500 photoinitiator. Considering all the results, the highest gloss value of 20.96 was obtained with samples printed with the formulation of the two photoinitiators at an equal ratio (1:1) cured under a gallium/mercury lamp combination at a power level of 90 W/cm. Moreover, the highest K/S value of 10.86 was obtained with samples printed with the formulation of the two photoinitiators at an equal ratio cured under the gallium lamp at 90 W/cm. Note de contenu : - EXPERIMENTAL : Materials - Methods - RESULTS AND DISCUSSION : UV curing and Fourier Transform-Infrared spectroscopy - Gloss measurements - Colour measurements DOI : 10.1111/cote.12386 En ligne : https://onlinelibrary.wiley.com/doi/epdf/10.1111/cote.12386 Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=32327 [article]

Réservation

Réserver ce document

Exemplaires (1)

Code-barres	Cote	Support	Localisation	Section	Disponibilité
20869	-	Périodique	Bibliothèque principale	Documentaires	Disponible

Controlled coagulation of emulsion polymers / Edward Kostansek in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 1, N° 1 (01/2004)  

[article]  inJOURNAL OF COATINGS TECHNOLOGY AND RESEARCH > Vol. 1, N° 1 (01/2004) . - p. 41-44 Titre : Controlled coagulation of emulsion polymers Type de document : texte imprimé Auteurs : Edward Kostansek, Auteur Année de publication : 2004 Article en page(s) : p. 41-44 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Coagulation Colloides Copolymères en émulsion Copolymérisation Latex Polyacrylate de butyle Polyaddition Polyméthacrylate de méthyle Le poly(méthacrylate de méthyle) (souvent abrégé en PMMA, de l'anglais Poly(methyl methacrylate)) est un polymère thermoplastique transparent obtenu par polyaddition dont le monomère est le méthacrylate de méthyle (MMA). Ce polymère est plus connu sous son premier nom commercial de Plexiglas (nom déposé), même si le leader global du PMMA est Altuglas International9 du groupe Arkema, sous le nom commercial Altuglas. Il est également vendu sous les noms commerciaux Lucite, Crystalite, Perspex ou Nudec. Poudres Index. décimale : 667.9 Revêtements et enduits Résumé : Coagulation of latex particles is most often carried out in the diffusion limited aggregation (DLA) regime where the time for coagulation to take place is on the millisecond timescale. This process produces aggregates of low density, irregular shape, and a broad particle size distribution. When the coagulation is carried out in the reaction limited aggregation (RLA) regime, a coagulation time of about 1-120 sec, the system can be controlled by mixing to yield dense, spheroidal aggregates with a very narrow particle size distribution. The important variables in the RLA process for butyl acrylate/methyl methacrylate (BA/MMA) latexes were found to be mixing intensity, latex copolymer composition, and coagulation temperature. Dried aggregates formed in the RLA process were found to have excellent powder flow properties and low dustiness. DOI : 10.1007/s11998-004-0023-1 En ligne : https://link.springer.com/content/pdf/10.1007%2Fs11998-004-0023-1.pdf Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=3931 [article]

Réservation

Réserver ce document

Exemplaires (1)

Code-barres	Cote	Support	Localisation	Section	Disponibilité
000585	-	Périodique	Bibliothèque principale	Documentaires	Disponible

Environmentally friendly fluoropolymer resins for ultra-weatherable coatings / Winn Darden in POLYMERS PAINT COLOUR JOURNAL - PPCJ, Vol. 204, N° 4593 (02/2014)  

[article]  inPOLYMERS PAINT COLOUR JOURNAL - PPCJ > Vol. 204, N° 4593 (02/2014) . - p. 20-26 Titre : Environmentally friendly fluoropolymer resins for ultra-weatherable coatings Type de document : texte imprimé Auteurs : Winn Darden, Auteur Année de publication : 2014 Article en page(s) : p. 20-26 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Copolymère fluoroéthylène-vinyléther Copolymères en émulsion Résistance aux conditions climatiques Revêtements:Peinture Index. décimale : 667.9 Revêtements et enduits Résumé : Fluoroethylene vinyl ether fluoropolymer resins Fluoroethylene vinyl ether (FEVE) resins were developed in the early 1980s in an attempt to overcome some of the problems associated with conventional fluoropolymer coatings. These products have a unique polymer structure (fig. 1). This polymer structure enables the fluorinated units, which have extremely high durability, to protect adjacent chemical bonds that are not as strong and, therefore, not as resistant to degradation by UV light. By making changes in the vinyl ether portion of the polymer, coating properties like solubility, transparency, hardness, flexibility, pigment compatibility, adhesion and gloss can be varied. In addition, the vinyl ether segments can be functionalised with hydroxyl groups to allow them to be reacted with aliphatic isocyanates to form fluoro-urethanes. These characteristics allow FEVE resins to be made in a range of forms, all offering outstanding weatherability. Note de contenu : - CHARACTERISTICS OF FEVE FLUOROPOLYMER RESINS : Weatherability of FEVE coatings - TYPES OF FEVE FLUOROPOLYMER RESINS : Solvent grade resins - Solid FEVE resins - Water emulsion and water dispersion FEVE resins - FEVE resins for powder coatings - ENVIRONMENTALLY FRIENDLY FLUOROPOLYMER COATINGS USING FEVE RESINS : Solid FEVE resins - Water dispersion resins - Fluoro-urethane coatings from FEVE water emulsion resin - Comparative physical properties : FEVE emulsion, dispersion and solvent resins - Comparative weathering : FEVE solvent, dispersion and emulsion coatings - FEVE powder coating resins En ligne : https://drive.google.com/file/d/1yofremMYTDE3muX4tHjaTSPXf3wrvO4z/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=20549 [article]

Réservation

Réserver ce document

Exemplaires (1)

Code-barres	Cote	Support	Localisation	Section	Disponibilité
15989	-	Périodique	Bibliothèque principale	Documentaires	Disponible

Epoxysilane oligomer for protective coatings / Christopher M. Byrne in COATINGS TECH, Vol. 7, N° 10 (10/2010)  

[article]  inCOATINGS TECH > Vol. 7, N° 10 (10/2010) . - p. 32-40 Titre : Epoxysilane oligomer for protective coatings Type de document : texte imprimé Auteurs : Christopher M. Byrne, Auteur Année de publication : 2010 Article en page(s) : p. 32-40 Langues : Américain (ame) Catégories : Copolymère styrène acrylique Copolymères en émulsion Epoxydes Latex Oligomères Particules métalliques Réticulants Revêtements protecteurs Silanes Traîtements de surface Index. décimale : 667.9 Revêtements et enduits Résumé : The use of silanes as adhesion promoters and crosslinkers is widely practiced in the coatings industry. The advantages of silanes in coatings systems were first introduced almost a half-century ago. As additives to formulations or as monomers in polymer synthesis, these products impart many desirable performance characteristics to a cured film. Coatings prepared with silanes can show improved mar and abrasion resistance, water and solvent resistance, acid and alkali resistance, and adhesion to various substrates. The use of silanes in coatings, however, is not limited to interaction between the organic polymer and the substrate. Pigments pretreated with silanes show increased dispersibility and binding, resulting in lower viscosities and better hiding power. Thus, silanes have steadily grown to become an indispensable component in many aspects of the coatings industry. Note de contenu : - METHODS AND MATERIALS : Gel content determination - Hydrogen gassing experiments - RESULTS AND DISCUSSION : Epoxysilane oligomers - Potential application examples - Crosslinker for acrylic latexes - Surface modifier for metallic particulates En ligne : https://drive.google.com/file/d/1WI3UpwBrgHGH8g2zSDgSb4MaBXaMtKEw/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=19120 [article]

Réservation

Réserver ce document

Exemplaires (1)

Code-barres	Cote	Support	Localisation	Section	Disponibilité
012628	-	Périodique	Bibliothèque principale	Documentaires	Disponible

Fast performing seals / Jorn Renema in EUROPEAN COATINGS JOURNAL (ECJ), N° 2 (02/2014)  

Permalink

Hidden blackness of carbon black / Yulia B. Monakhova in EUROPEAN COATINGS JOURNAL (ECJ), (07-08/2024)  

Permalink

Important properties of emulsion polymers / M. Veeramani in PAINTINDIA, Vol. LXVII, N° 1 (01/2017)  

Permalink

Missing link / Kenta Kanaida in ADHESIVES AGE, Vol. 44, N° 8 (08/2001)  

Permalink

Modification of styrene-acrylic emulsion by organic UV absorber in synergy with fluorine and silicon monomers for weatherable coatings / Wei Dong in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 19, N° 2 (03/2022)  

Permalink

New developments in vinyl acetate-ethylene (VAE) / Rajeev Farwaha in COATINGS TECH, Vol. 9, N° 1 (01/2012)  

Permalink

Novel retanning agents for chrome tanned leather based on emulsion - Nano particles of styrene/butyl acrylate co-polymers / E. H. A. Nashy in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. CVI, N° 9 (09/2011)  

Permalink

A novel waterborne fluorinated polyurethane–acrylate film for ultraviolet blocking and antiprotein fouling in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 18, N° 5 (09/2021)  

Permalink

Preparation and characterization of novel waterborne antifouling coating / Yuan-Yuan Qu in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 9, N° 6 (11/2012)  

Permalink

Preparation, properties and application of waterborne hyydroxyl-functional polyurethane/acrylic emulsions in two-component coatings / Guozhang Ma in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 12, N° 3 (05/2015)  

Permalink

Properties and anticorrosion application of acrylic ester/epoxy core–shell emulsions: effects of epoxy value and crosslinking monomer / Ke Zhu in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 14, N° 6 (11/2017)  

Permalink

Relations procédé de synthèse - Structure - Filmabilité dans des copolymères acrylonitrile/acrylate de n-butyle et de 2-éthyl-hexyle en émulsion / Bruno Rocchetti / 1983

Permalink

Simple and quick method for the molecular weight distribution studies of all acrylics and styrene-acrylic emulsion polymers / S. V. Naik in PAINTINDIA, Vol. LI, N° 1 (01/2001)

Permalink

Study of copolymer latexes with bimodal particle size distribution to improve stain resistance : an overview / Tejas M. Shah in PAINTINDIA, Vol. LIX, N° 5 (05/2009)

Permalink

Sweet inspiration / Steven Bloembergen in ADHESIVE TECHNOLOGY, Vol. 16, N° 3 (09/1999)

Permalink

---

1 2 (1 - 20 / 25) Par page : Tout afficher