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Influence of polyol unsaturation on urethane properties / Thomas Fishback in ADHESIVES AGE, Vol. 39, N° 7 (06/1996)
[article]
Titre : Influence of polyol unsaturation on urethane properties Type de document : texte imprimé Auteurs : Thomas Fishback, Auteur ; Gladys Aviles, Auteur ; Curt Reichel, Auteur Année de publication : 1996 Article en page(s) : p. 20-23 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Adhésifs en phase aqueuse
Elastomères
Formulation (Génie chimique)
Poids moléculaires
Polyols
Polyuréthanes
Résistance aux conditions climatiques
Rhéologie
ViscositéIndex. décimale : 668.3 Adhésifs et produits semblables Résumé : The reduction of unsaturation in polyols used in the production of elastomeric urethane materials provides improved physical properties and environmental resistance. Diols must possess very low levels of unsaturation to be of practical benefit. In triols, even a partial reduction (50%) in unsaturation results in noticeable gains in sealant properties. Reduction of triol unsaturation to low levels provides even further gains. The combination of high molecular weight, low unsaturation triols and diols gives tough, highly extendible materials which perhaps will be competitive with silicones in the 50% movement capability sealant market. Commercialization of propylene oxide-based diols with very low unsaturation will provide a new tool for formulators. Formulators will be able to incorporate a higher molecular weight soft segment than was previously possible in elastomers. The weatherability of urethane products will benefit from the increased retention of elastomeric properties provided by polyols with lower unsaturation content. Note de contenu : - EXPERIMENTAL SEALANTS
- ELASTOMERS
- FILMS
- RESULTS AND DISCUSSION : Sealants - Elastomers - Films
- ENVIRONMENTAL RESISTANCEEn ligne : https://drive.google.com/file/d/1vWx_Ar2I292-MGe-0w0IPI7rIxmPZMLy/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=20503
in ADHESIVES AGE > Vol. 39, N° 7 (06/1996) . - p. 20-23[article]Exemplaires (1)
Code-barres Cote Support Localisation Section Disponibilité 001065 - Périodique Bibliothèque principale Documentaires Exclu du prêt Inorganic nanoparticles : synthesis functionalization and their use in industrial applications / Giovanni Baldi in DOUBLE LIAISON, N° 561 (03/2008)
[article]
Titre : Inorganic nanoparticles : synthesis functionalization and their use in industrial applications Type de document : texte imprimé Auteurs : Giovanni Baldi, Auteur Année de publication : 2008 Article en page(s) : p. 26-29 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Composés inorganiques -- Synthèse
Nanoparticules -- Synthèse
PolyolsIndex. décimale : 620.5 Nanotechnologies Résumé : Nanotechnology represents one of the most promising fields in materials science. Many industrial and academic research groups have recently developed different synthetic methods for nano powders. Particulary the preparation of inorganic nanoprticles in polyalcohol (polyol method) allows an accurate and reproducible control of particle size in a broad dimensional range. A polyalcohol is generally a high boiling alcohol able to dissolve inorganic salt used as precursors and to co-ordinate itself to growing nanoclusters. Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=3462
in DOUBLE LIAISON > N° 561 (03/2008) . - p. 26-29[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 009996 - Périodique Bibliothèque principale Documentaires Disponible De l'intérêt des polyisocyanates aliphatiques dans des systèmes 100% / Philippe Olier in DOUBLE LIAISON, N° 589 (11/2012)
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Titre : De l'intérêt des polyisocyanates aliphatiques dans des systèmes 100% Type de document : texte imprimé Auteurs : Philippe Olier, Auteur Année de publication : 2012 Article en page(s) : p. 36-38 Langues : Français (fre) Catégories : Composés aliphatiques
Formulation (Génie chimique)
Polyisocyanates
Polyméthyl diphényl diisocyanate
Polyols
Revêtements:PeintureIndex. décimale : 667.9 Revêtements et enduits Résumé : Historiquement, la mise en place de nouvelles réglementations dans un domaine a toujours été accompagnée de changement de technologies ou de regain d'intérêt pour des technologies existantes mais mieux adaptées à la problématique. Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=16540
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Code-barres Cote Support Localisation Section Disponibilité 14325 - Périodique Bibliothèque principale Documentaires Disponible Introduction of green chemistry in coating technology / Sandesh Naresh Patil in PAINTINDIA, Vol. LXXIII, N° 3 (03/2023)
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Titre : Introduction of green chemistry in coating technology Type de document : texte imprimé Auteurs : Sandesh Naresh Patil, Auteur Année de publication : 2023 Article en page(s) : p. 52-64 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Bilan des émissions de gaz à effets de serre
Biomasse
Chimie écologique
Huiles et graisses végétales
Polyéther bloc amide
Polyols
Ressources renouvelables
Revêtements organiques
Solvants écologiquesIndex. décimale : 667.9 Revêtements et enduits Résumé : Vegetable oils, solvents, natural polymers are the crucial ingredient of many research and industrial chemical processes and consumer product formulations. Out of which vegetable oil constitute the single, largest, easily available, low cost, non-toxic, non-depletable, biodegradable family yielding materials that are capable of competing with fossil fuel derived petro-based products. It helps reduce the carbon footprint and environmental impact of chemicals on it, in addition to societal and legislative push that more products be produced from carbon-neutral resources. Biomass is a promising renewable alternative resource for producing bio-solvents, and this review focuses on their extraction and synthesis on a laboratory and large scale. Starch, lignocellulose, plant oils, animal fats and proteins have been fused together with synthetic pathways, green technologies and processes to form known or new bio-derived solvents including Alcohols, esters, terpenes, benzenes, toluene and xylene (BTX),ethers alkanes, aromatics, ionic liquids (ILs), furans, liquid polymers and deep eutectic solvents (DESs)—all with unique physiochemical properties that warrant their use as solvation agents in manufacturing of coating, pharmaceutical, cosmetics, chemicals, energy, food and beverage industries, etc.
The most important feature of vegetable oil is their unique chemical structure with unsaturation sites, epoxies, hydroxyls, esters and other functional groups along with inherent fluidity characteristics. These enable them to undergo various chemical transformations producing low molecular weight polymeric materials with versatile applications, particularly as heart or centric ingredients in paints and coatings.Note de contenu : - BIO BASED OR BIO SOLVENTS
- ALCOHOLS : Ethanol, propanol and butanol - Furfuryl alcohol - Glycerol and its derivatives - Glycerol oligomers and polymers - Diols
- ESTERS : Acylic esters - Glycerol carbonate and y-Valero lactone - Cyrene - Alkanes and aromatics - Ethers
- IONIC LIQUIDS
- DEEP EUTECTIC SOLVENTS : Oils & acid ingredients vegetable oils used as polymeric coatings - Alkyds - Polyester amides (PEA) - Polyether amides - Polyurethanes - Epoxies - PolyolsEn ligne : https://drive.google.com/file/d/186BAV3BVBr7JwsoHA1Auhad2_tIaapSC/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=39603
in PAINTINDIA > Vol. LXXIII, N° 3 (03/2023) . - p. 52-64[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 24016 - Périodique Bibliothèque principale Documentaires Disponible Introduction to farnesene-based polyols / Herbert Chao in ADHESIVES & SEALANTS INDUSTRY (ASI), Vol. 25, N° 4 (04/2018)
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Titre : Introduction to farnesene-based polyols Type de document : texte imprimé Auteurs : Herbert Chao, Auteur ; Steve Henning, Auteur ; Nan Tian, Auteur ; Tomas Tmka, Auteur Année de publication : 2018 Article en page(s) : p. 21-27 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Hydrophobie
Polyaddition
Polyfarnesène
Polymères -- Synthèse
Polyols
Polyuréthanes
RhéologieIndex. décimale : 668.3 Adhésifs et produits semblables Résumé : A new hydrophobic polyol derived from a renewable source offers lower viscosity than hydroxyl-terminated polybutadienes (HTPBs) of the same molecular weight.
Hydroxyl-terminated polybutadiene (HTPB) resins are known to have a higher viscosity than polyether polyols of the same molecular weight. A new hydrophobic polyol derived from renewable resources, namely polyfarnesene diol, has been developed having lower viscosity than the HTPBs of the same molecular weight.Hydroxyl-terminated polybutadiene (HTPB) resins are known to have a higher viscosity than polyether polyols of the same molecular weight. A new hydrophobic polyol derived from renewable resources, namely polyfarnesene diol, has been developed having lower viscosity than the HTPBs of the same molecular weight.
Trans-b-farnesene* was used in the present study for the anionic processes (farnesol and other oxygenated byproducts removed). Trans-b-farnesene is produced in small quantities in natural processes, but typically both a- and b-isomers are present. The supplier has modified the common yeast Saccharomyces cerevisiae to efficiently produce large amounts of trans-b- farnesene. Sugar is fermented to the target molecule in a manufacturing-ready strain that used 21 enzymatic steps in a native pathway. Only the b-isomer is active in polymerization, making this fermentation route especially attractive industrially.
This article summarizes the preparation of polyols based on trans-b-farnesene via anionic polymerization. Polyurethanes derived from polyfarnesene diol (PFD), poly(farnesene-co-butadiene) diol, and polyol blends of polyfarnesene diol and hydroxyl-terminated polybutadiene are evaluated and compared.Note de contenu : - ANIONIC POLYMERIZATION
- POLYURETHANE SYNTHESIS
- RESULTS AND DISCUSSION : Miscibility of polyfarnesene diols with other polyols - Polyurethanes derived from polyol mixture containing diols - POlyurethanes derived from copolymer diols based on different ratios of farnesene and butaniene - Polyurethane derivef rom th epolyol mixture conatining polyfarnesene diol and poly bd polyol - Viscosity of polyol blends and copolymer polyols
- FIGURE : Viscosity of polyol blends and polyols of copolymers made from farnesene and butadiene in various ratios
- TABLES : 1. Compatibility results of polyfarnesene diol and hydrogenated polyfarnesene diol - 2. Polyurethanes of 30% hard segment content derived from polyol blends of PFD 2000 and Krasol LBH 2000 resin - 3. Polyurethanes of 40% hard segment content derived from polyol blends of PFD 2000 and Krasol LBH 2000 resin - 4. Polyurethanes of 30 % hard segment content derived from polyols based on farnesene and butadiene random copolymers - 5. Polyurethanes of 40 % hard segment content derived from polyolss based on farnesene and butadiene random copolymers - 6. Polyurethanes of 30 % hard segment content derived from polol blends of PFD 2000 and poly bd R45HTLO resin - 7. Polyurethanes of 40 % hard segment content derived from poloyl blends of PFD 2000 and poly bd R45HTLO resin - 8. Polyurethanes of 30 % hard segment content derived from poloyl blends of PFD 2000 and poly bd R20LM resin - Polyurethanes of 40 % hard segment content derived from poloyl blends of PFD 2000 and poly bd R20LM resin
- TABLES :En ligne : https://www.adhesivesmag.com/articles/96166-introduction-to-farnesene-based-poly [...] Format de la ressource électronique : Web Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=30632
in ADHESIVES & SEALANTS INDUSTRY (ASI) > Vol. 25, N° 4 (04/2018) . - p. 21-27[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 19885 - Périodique Bibliothèque principale Documentaires Disponible Inventive routes for the preparation of waterborne acrylic polyols for 2K PU protective topcoats / David Vanaken in POLYMERS PAINT COLOUR JOURNAL - PPCJ, Vol. 212, N° 4676 (08/2022)
PermalinkInvestigating changes in electrochemical properties when nano-silica is incorporated into an acrylic-based polyurethane clearcoat / Hamed Dastmalchian in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 9, N° 2 (03/2012)
PermalinkInvestigation of cure advancement in dual-cure polyurethane-acrylate coatings over metal substrates / Mohsen Sarrafi in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 15, N° 3 (05/2018)
PermalinkLiquid, sprayable, "zero" VOC coatings utilizing cycloaliphatic epoxies / Robert F. Eaton in JOURNAL OF COATINGS TECHNOLOGY (JCT), Vol. 68, N° 860 (09/1996)
PermalinkLow monol polyether polyols offer new opportunities for sealant manufacturers / Curt Reichel in ADHESIVES AGE, Vol. 40, N° 1 (01/1997)
PermalinkLow-viscosity, high-functionality crosslinker / Christoph Irle in EUROPEAN COATINGS JOURNAL (ECJ), N° 11 (11/2015)
PermalinkLow VOC topcoats using ultra high solids resins / Gautam Haldankar in COATINGS TECH, Vol. 18, N° 9 (09/2021)
PermalinkMaking a splash / Ulrike Maassen in POLYMERS PAINT COLOUR JOURNAL - PPCJ, Vol. 192, N° 4453 (06/2002)
PermalinkPermalinkMetal complex based coating for fire protection of electric cables / N. K. Saxena in PAINTINDIA, Vol. LXIII, N° 8 (08/2013)
PermalinkMicrowave-assisted polyol synthesis of V–ZrSiO4 nanoparticles and its use as a blue ceramic pigment / Hossein Heydari in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 19, N° 5 (09/2022)
PermalinkPermalinkPermalinkPermalinkNatural polyhydroxy resins in surface coatings : a review in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 19, N° 3 (05/2022)
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