Dépouillements

Preparation of cross-linked fluorosilicone acrylate emulsions / Shusen Cao in POLYMERS PAINT COLOUR JOURNAL - PPCJ, Vol. 211, N° 4670 (08/2021)  

[article]  inPOLYMERS PAINT COLOUR JOURNAL - PPCJ > Vol. 211, N° 4670 (08/2021) . - p. 20-22 Titre : Preparation of cross-linked fluorosilicone acrylate emulsions Type de document : texte imprimé Auteurs : Shusen Cao, Auteur ; Xiaolong Chen, Auteur ; Wanting Zhao, Auteur ; Lijun Chen, Auteur Année de publication : 2021 Article en page(s) : p. 20-22 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Diméthylacrylate d'éthylène glycol Fluorosilicones Polyacrylates Polymérisation en émulsion Revêtements organiques Index. décimale : 667.9 Revêtements et enduits Résumé : A semi-continuous seeded emulsion polymerisation method was used to prepare an aqueous acrylate emulsion with MMA and BA as the main monomers and EGDMA as the cross-linking monomer. Silicon monomer VTES and fluoromonomer DFMA were added to optimise the acrylate emulsion. The experimental results show that after adding the cross-linking agent, the compactness of the latex film is improved, the water absorption rate is greatly reduced, and the thermal decomposition temperature is increased by 12.32°C. It shows that the heat resistance and water resistance of the latex film of the prepared emulsion are improved. After adding silicon monomer and fluorine monomer, the water resistance of the latex film is greatly improved. In particular, the surface of the fluorine-containing latex film exhibits hydrophobicity. Note de contenu : - EXPERIMENT : Materials - Preparation of luorinated acrylate latex - RESULTS AND DISCUSSION : FTIR of film - Emulsion appearance and stability - Influence of initiator dosage on monomer conversion rate and coagulation rate - Scheme 1 : Synthesis formula for preparing cross-linked fluorosilicone acrylate emulsion - Table 1 : The influence of the amound of emulsifier and the ratio of anion to non-ion on the calcium ion and mechanical stability of the latex - Table 2 : The effect of emlulsifier dosage on the particle size of latex particles - Table 3 : The influence of different components on the water absorption and surface water contact angle of latex film En ligne : https://drive.google.com/file/d/1PqqPKJY6x8mW7XFdgEBhJcgZU8vYnKNq/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=36131 [article]

Réservation

Réserver ce document

Exemplaires (1)

Code-barres	Cote	Support	Localisation	Section	Disponibilité
22872	-	Périodique	Bibliothèque principale	Documentaires	Disponible

Easy matting with high resistance / Bodo Essen in POLYMERS PAINT COLOUR JOURNAL - PPCJ, Vol. 211, N° 4670 (08/2021)  

[article]  inPOLYMERS PAINT COLOUR JOURNAL - PPCJ > Vol. 211, N° 4670 (08/2021) . - p. 16-19 Titre : Easy matting with high resistance Type de document : texte imprimé Auteurs : Bodo Essen, Auteur ; Hubert Oggermüller, Auteur Année de publication : 2021 Article en page(s) : p. 16-19 Langues : Anglais (eng) Catégories : Agent mattant Bois -- Revêtements Formulation (Génie chimique) Polyacryliques Vernis en phase aqueuse -- Additifs Index. décimale : 667.9 Revêtements et enduits Résumé : Dispersion-based coats are becoming increasingly popular as efficient, versatile and environmentally friendly coating materials with low VOC emissions. A new slurry-based matting agent opens up possibilities to withstand and overcome existing drawbacks of classical powder-based silica matting agents, particularly in clear coatings for wood. The process of matting dispersion-based clear coatings while still maintaining both excellent film appearance and excellent resistance properties is sometimes difficult, especially when using binder emulsions with a higher minimum film formation temperature and glass transition temperature. Furthermore, when it cornes to dealing with traditional matting agents, there are significant disadvantages presented by their form, which are mostly powder-based. Note de contenu : - Formulation variations and test design - First promising results - Optical properties must be maintained - Matting meets resistance - Beneficial property composition composition - Overall performance benefits - Table 1 : Base formulation of clear wood coating En ligne : https://drive.google.com/file/d/1R19UkxgGcJpe9UW5Af0PKTnrSuKydLP4/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=36132 [article]

Réservation

Réserver ce document

Exemplaires (1)

Code-barres	Cote	Support	Localisation	Section	Disponibilité
22872	-	Périodique	Bibliothèque principale	Documentaires	Disponible

New material removes airborne droplets / Thierry Destruhaut in POLYMERS PAINT COLOUR JOURNAL - PPCJ, Vol. 211, N° 4670 (08/2021)  

[article]  inPOLYMERS PAINT COLOUR JOURNAL - PPCJ > Vol. 211, N° 4670 (08/2021) . - p. 25-26 Titre : New material removes airborne droplets Type de document : texte imprimé Auteurs : Thierry Destruhaut, Auteur Année de publication : 2021 Article en page(s) : p. 25-26 Langues : Anglais (eng) Catégories : Antimicrobiens Gouttelettes 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. Revêtements organiques Surfaces fonctionnelles Vernis Index. décimale : 667.9 Revêtements et enduits Résumé : Transparent coating could be painted onto plexiglass barriers and face shields, accordig to Northwestern University researchers who have developed a new transparent material that can capture droplets and aerosols. Although plexiglass barriers are seemingly everywhere these days — between grocery store lanes, around restaurant tables and towering above office cubicles — they are an imperfect solution to blocking virus transmission. Instead of capturing virus-laden respiratory droplets and aerosols, plexiglass dividers merely deflect droplets, causing them to bounce away but remain in the air. To enhance the function of these protective barriers, researchers from Northwestern University in Illinois in the US, have developed a new transparent material that can capture droplets and aerosols, effectively removing them from air. The material is a clear, viscous liquid that can be painted onto any surface, including plastic, glass, wood, metal, stainless steel, concrete and textiles. When droplets collide with the coated surface, they stick to it, get absorbed and dry up. The coating is also compatible with antiviral and antimicrobial materials, so sanitising agents, such as copper, could be added to the formula. Note de contenu : - Fig.1 : An illustration of a common scenario of respiratory aerosols generated in a workspace, as wett as environmentat surfaces that could be suitable to transform into functional, droplet-capturing surfaces. - Fig. 2 : Atthough the coated glass captures more aerosol droplets and retains more sotid residues, it remains haze-free and transparent, compared to the uncoated glass - Fig. 3 : A 3D image (taken with laser confocal microscopyl, showing crater-like features generated by the captured droplets - Fig. 4 : Comparison between uncoated and coated plexiglass screens, on the microscale En ligne : https://drive.google.com/file/d/1w1WX9D53Pr6jWQLtgFcCfB2y93y9wQNn/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=36133 [article]

Réservation

Réserver ce document

Exemplaires (1)

Code-barres	Cote	Support	Localisation	Section	Disponibilité
22872	-	Périodique	Bibliothèque principale	Documentaires	Disponible

Novel path to hydroxyl-functional emulsions for high-performance waterborne two-component polyurethane coatings / Steven Mao in POLYMERS PAINT COLOUR JOURNAL - PPCJ, Vol. 211, N° 4670 (08/2021)  

[article]  inPOLYMERS PAINT COLOUR JOURNAL - PPCJ > Vol. 211, N° 4670 (08/2021) . - p. 41-44 Titre : Novel path to hydroxyl-functional emulsions for high-performance waterborne two-component polyurethane coatings Type de document : texte imprimé Auteurs : Steven Mao, Auteur ; David Vanaken, Auteur ; Wang Scott, Auteur ; Marcelo Herszenhaut, Auteur Année de publication : 2021 Article en page(s) : p. 41-44 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Groupe hydroxyle Matériaux hautes performances Polyuréthanes Revêtements bi-composant Revêtements en phase aqueuse Revêtements organiques Index. décimale : 667.9 Revêtements et enduits Résumé : The global demand for waterborne (WB) industrial coatings continues to increase to meet more and more stringent VOC legislation and heightened awareness of environmental stewardship. Because of their lower environmental footprint, waterborne epoxy resins, acrylic polyol (APO) dispersions, and hydroxyl-functional (OH-functional) emulsions are gaining market share in high-performance two-component (2K) industrial coating applications. While waterborne epoxy resins are cured with a variety of amines, APOs and OH-functional emulsions are crosslinked with diverse WB isocyanates. Compared to APO dispersions, OH-functional acrylic emulsions offer lower cost and an easier production route, in addition to faster drying and property development. OH-functional acrylic emulsions can be designed with a wide range of hydroxyl values and performance characteristics to address the needs of many different applications in plastic, wood, automotive, and construction coatings. Note de contenu : -NEES AND TRENDS IN THE COATINGS INDUSTRY : Sustainability & lower VOC requirements, which lead to - Excellent performance - Globalisation of technologies - Controlled costs - TAKING ADVATAGE OF A HIGHLY VERSATILE FAMILY OF BUILDING BLOCKS - BUILDING WB 2K PU SYSTEMS - PRIMARY VS. SECONDARY DISPERSION : Process - Chemistry - NOVEL OH-FUNCTIONAL EMULSIONS FOR HIGH-PERFORMANCE WB 2K PU COATINGS - Fig. 1 : Koch reaction to produce neo-acids - Fig. 2 : Structure of CE1OP glycidyl ester and its adduct with acrylic acid - Fig. 3 : - Fig. 4 : Relative ranges of acid values for various WB APO technologies - Fig. 5 : Synthesis of conventional WB APOs - Fig. 6 : APO dispersions and APO emulsions - differences in synthesis and structure - Fig. 7 : Increased monomer pre¬emulsion stability with ACE - Fig. 8 : Reduced grit formation with ACE pre-emulsion stability with ACE - Fig. 9 : Improved crosslink density and functional group distribution when ACE is used - Fig. 10 : Comparison of cured film properties with and without ACE as comonomer (emulsion with 4% OH content) En ligne : https://drive.google.com/file/d/112kRfe-YrZXWW57T0ioxjKN1LuT6zKEk/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=36134 [article]

Réservation

Réserver ce document

Exemplaires (1)

Code-barres	Cote	Support	Localisation	Section	Disponibilité
22872	-	Périodique	Bibliothèque principale	Documentaires	Disponible

New advances in anti-corrosion coatings / Mark Gore in POLYMERS PAINT COLOUR JOURNAL - PPCJ, Vol. 211, N° 4670 (08/2021)  

[article]  inPOLYMERS PAINT COLOUR JOURNAL - PPCJ > Vol. 211, N° 4670 (08/2021) . - p. 51-52 Titre : New advances in anti-corrosion coatings Type de document : texte imprimé Auteurs : Mark Gore, Auteur Année de publication : 2021 Article en page(s) : p. 51-52 Langues : Anglais (eng) Catégories : Anticorrosifs Anticorrosion Métaux -- Revêtements protecteurs Index. décimale : 667.9 Revêtements et enduits Résumé : The author discusses the development of zinc thermal diffusion (ZTD) and its role in the latest anti-corrosion technology. In its simplest terms, corrosion is the result of a man-made material, such as a metal interacting with its environnent, often in a chemical or electrochemical reaction with an oxidant. The result can be unsightly and problematic, or even catastrophic. It can also be extremely costly. Worldwide, the direct and indirect costs of corrosion have been estimated by NAGE to be more than 3% of the global GDP. Corrosion adds significant cost burdens to business and industry for additional maintenance, repair, replacement, loss of service and more. A great many products and applications are impacted by corrosion and, consequently, many different anti-corrosion methods and treatments have been developed and used over time, with differing levels of success. Corrosion protection has included organic/inorganic barrier coatings, barrier and sacrificial metallic-based coatings and even electronic systems that counter the intrinsic electric potential between metal parts and their service surroundings. Electroplating, hot-dip, metal flake and Sherardising are some of the familiar anti-corrosion treatments that have been applied for many years. Note de contenu : - Zinc thermal diffusion - enhancing corrosion protection - G5K - extending the performance of ZTD - Extending service life and reliability - An eco-friendly process - A thinner, rougher coating enhances many applications - Many applications En ligne : https://drive.google.com/file/d/1Z4j9Uxu6XqcEoDyXy6AN97EFmtMWii4c/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=36135 [article]

Réservation

Réserver ce document

Exemplaires (1)

Code-barres	Cote	Support	Localisation	Section	Disponibilité
22872	-	Périodique	Bibliothèque principale	Documentaires	Disponible

Antimicrobial coatings - the case for copper / Thierry Destruhaut in POLYMERS PAINT COLOUR JOURNAL - PPCJ, Vol. 211, N° 4670 (08/2021)  

[article]  inPOLYMERS PAINT COLOUR JOURNAL - PPCJ > Vol. 211, N° 4670 (08/2021) . - p. 28-29 Titre : Antimicrobial coatings - the case for copper Type de document : texte imprimé Auteurs : Thierry Destruhaut, Auteur Année de publication : 2021 Article en page(s) : p. 28-29 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Antimicrobiens Cuivre Nanoparticules Revêtements organiques Index. décimale : 667.9 Revêtements et enduits Résumé : the author discusses the advantages of antimicrobial coatings that use copper as the active ingredient. En ligne : https://drive.google.com/file/d/1LMfNM2DCBdkNb32vyT7W5b9NGeRMtvGd/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=36198 [article]

Réservation

Réserver ce document

Exemplaires (1)

Code-barres	Cote	Support	Localisation	Section	Disponibilité
22872	-	Périodique	Bibliothèque principale	Documentaires	Disponible

Exemplaires (1)

Code-barres	Cote	Support	Localisation	Section	Disponibilité
22872	-	Périodique	Bibliothèque principale	Documentaires	Disponible

Documents numériques

Polymer Paint Colour Journal Vol. 211, N° 4670 URL