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[article]
Titre : Improving resin colors Type de document : texte imprimé Auteurs : Dieter Guhl, Auteur Année de publication : 2012 Article en page(s) : p. 65-67 Langues : Anglais (eng) Catégories : Polyalkydes
Polycondensation
Polyesters
Polymères -- ColorationIndex. décimale : 667.9 Revêtements et enduits Résumé : Polycondensation resins, like alkyd- and polyester resins require high reaction temperatures during the manufacturing process. Temperatures usually significantly above 200°C are necessary for well known reasons : they help to drive out the reaction water, to achieve the desired molecular weight and to lower the overall reaction time. Further on in the case of alkyd resins high temperatures induces some polymerization reactions, which influence the viscosity of the resin positively.
But there are not only positive effects for the application of high reaction temperatures. Besides the energy costs the color of the resin is influenced. Not very surprisingly resin manufacturers note, that with high temperatures and long reaction times the color values of the resins increase. Resin customers prefer binders as lightly colored as possible to achieve full flexibility for the coloristic options in the finished paint.
The thermally induced color development of the condensation resins is dependent on several factors :
- quality of the raw material, especially of the nature-based oils and fatty acids,
- proper control of the cooking process
- the catalyst
- use of antioxidants
The color formation is chemically caused by different reactions as for example :
- dehydration reaction
- oxidation reaction
- formation of olefins, aldehyds or ethers,
- elimination reactions with formation of conjugated double bonds
- polymerization reactionsNote de contenu : - Quality of the raw materials
- Proper control of the cooking process
- Catalyst influence
- Use of antioxidants
- Table 1 : Color development of different oleic acid types after esterification at 200°C
- Table 2 : Catalysts for resins
- Table 3 : Color development in dependency of oil length
- Table 4 : Catalyst/antioxidant combinations and their effect on reaction time and color
- Table 5 : Resin composition for TIB AOA study
- Table 6 : Results for antioxicantsPermalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=16261
in PAINTINDIA > Vol. LXII, N° 9 (09/2012) . - p. 65-67[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 14239 - Périodique Bibliothèque principale Documentaires Disponible In-line coated profiles : optimizing the pultrusion process / Nora Lardiès Miazza in JEC COMPOSITES MAGAZINE, N° 115 (08-09/2017)
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[article]
Titre : In-line coated profiles : optimizing the pultrusion process Type de document : texte imprimé Auteurs : Nora Lardiès Miazza, Auteur Année de publication : 2017 Article en page(s) : p. 28-30 Langues : Anglais (eng) Catégories : Capteurs (technologie)
Composites
Formulation (Génie chimique)
Micro-ondes
Polyesters
Polymérisation
Primaire (revêtement)
Procédés de fabrication
Pultrusion
ThermométrieIndex. décimale : 668.4 Plastiques, vinyles Résumé : The pultrusion process in an effective way to process composites, however several drawbacks that reduce the competitiveness of pultruded profiles in comparaison to traditional materials still need to be addressed. On the one hand, the process is limited by the time required to polymerize the resin inside the die, which results in a low-speed process. On the other hand, when a coating is needed to improve surface properties, the surface of this profile must be carefully prepared off-line, requiring additional sanding and painting steps that are expensive, highly labour-intensive and polluting. Note de contenu : - Creating a specific microwave antenna for the pultrusion die
- Formulating the resin with the necessary microwave susceptors
- Modelling the pultrusion process for die design
- Developing a specific sensor system to continuously monitor the curing degree of the resin and coating inside the pultrusion mould
- Manufacturing the molds and integrating all the subsystems
- Formulating a fast-curing primer to coat the composite profile and foster the adhesion of a debondable adhesive
- FIGURES: 1. Antenna MW for the curing of the ALKE's profile (automotive sector) - 2. Open antenna system available in AIMPLAS' facilities and temperature vs. time for the curing of the polyester resin with susceptor C - 3. First curved sensor developed for an in-line process - 4. The real-time temperature measurements of the 4 heating zones together with the temperature at the Microwave heating area and the profile speed are displayed - 5. Online prediction of the degree of cure from the 4 cure sensors. At the top right-hand-side the real-time degree of cure are displayed for the 2 sensors in the resin region and the other 2 cure sensors at the primer area - 6. First coated pultrusion profile obtained in-line - 7. Assembly of the full cargo bed by adhesive join and easy debonding pictureEn ligne : https://drive.google.com/file/d/12IuSL86RZkzKNJgfIO_B9aZ9IFggERka/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=29170
in JEC COMPOSITES MAGAZINE > N° 115 (08-09/2017) . - p. 28-30[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 19077 - Périodique Bibliothèque principale Documentaires Disponible In-situ phosphatizing coatings II : a high-solids polyester baking enamel / Tao Yu in JOURNAL OF COATINGS TECHNOLOGY (JCT), Vol. 71, N° 892 (05/1999)
[article]
Titre : In-situ phosphatizing coatings II : a high-solids polyester baking enamel Type de document : texte imprimé Auteurs : Tao Yu, Auteur ; Chhiu-Tsu Lin, Auteur Année de publication : 1999 Article en page(s) : p. 69-77 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Adhésion
Anticorrosion
Chlorure de sodiumLe chlorure de sodium est un composé chimique de formule NaCl. On l'appelle plus communément sel de table ou de cuisine, ou tout simplement sel dans le langage courant. C'est le principal produit dissous dans l'eau de mer ; on l'appelle alors sel marin.
On l'obtient : dans des marais salants par évaporation de l'eau de mer, dans des mines, par extraction du sel gemme (halite) ou en le synthétisant lors de réactions à hautes températures entre du dichlore (Cl2) et du sodium métallique (Na).
Le chlorure de sodium est utilisé dans l'industrie chimique pour produire du chlore, de la soude caustique et de l’hydrogène.
Couches minces
Essais de brouillard salin
Formulation (Génie chimique)
Haut extrait sec
Immersion
Métaux
Phosphatation
Polyesters
Polymères réticulés
Revêtement émail:Peinture-émail
Stabilité au stockageIndex. décimale : 667.9 Revêtements et enduits Résumé : A single step in-situ phosphatizing coating (ISPC) can be formulated by pre-dispersing an optimal amount of in-situ phosphatizing reagents (ISPRs) into the paint system. The technique of ISPC is applied to a high-solids polyestermalemine baking enamel using a designed ISPR-2. The in-can stability of ISPC is verified using rheological measurements. The coating properties and protective performance of the ISPC are compared to those of the multi-step coating of control sample (MCCS). The immersion tests in a 3% NaCl solution and salt spray testings show a significant improvement in paint disbondment from the X scribe for ISPC. The observed coating performance enhancement of ISPC over MCCS is confirmed from the multi-functionality of ISPRs. Phosphate chemistry proceeds via an acid-base type of interaction, P-O-Mn+, and polymer chemistry generates a covalent P-O-C linkage with the polymer network. Note de contenu : - Crosslinking density verification for the coatings
- ISPC corrosion resistance measurements
- Storage stability of ISPC and its polymer chemistryPermalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=17855
in JOURNAL OF COATINGS TECHNOLOGY (JCT) > Vol. 71, N° 892 (05/1999) . - p. 69-77[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 003560 - Périodique Bibliothèque principale Documentaires Disponible 009606 - Périodique Bibliothèque principale Documentaires Exclu du prêt
[article]
Titre : In the black Type de document : texte imprimé Auteurs : Gabriele Leder, Auteur ; Kai Krauss, Auteur Année de publication : 2007 Article en page(s) : p. 26-27 Langues : Anglais (eng) Catégories : Compatibilité chimique et physique
Pigments
Polyacryliques
Polyalkydes
PolyestersIndex. décimale : 667.9 Revêtements et enduits Résumé : The authors describe easily dispersed pigment black preparations.
Inxel pigment preparations show effective compatibility in all acrylate resins that were evaluated. The jetness values were always comparable or even higher compared to the corresponding powder pigment. The strong blue undertone in mastone applications and very good rub-out performance in tint demonstrate the excellent stability of the pigment preparations. Beside these acrylate resins also tests in alkyd and polyester systems were conducted. Here as well, very positive results were obtained. Meanwhile, various preparations based on Degusa pigment blacks can be offered in different jetness ranges. Step by step the colour range will be widened.Note de contenu : - Table : Selected acrylic resins
- Figures : 1. Dispersion times in minutes of the pigment black powder in comparison to the newly-developed preparation - 2. Comparison of jetness (Mγ) and unterdone (dM) of Inxel Black A902 in five different acrylate resins (5% pigment black on binder solid) - 3. Comparison of jetness (Mγ) and undertone (dM) of an acrylate coating prepared with a Regular Color Gas Black (RCG) and Inxel Black 1903 - 4. Optical density of draw downs based on a low colour furnace black and Inxel Black 1904 (TiO2/pigment black = 100:4, two pack acrylic coating)En ligne : https://drive.google.com/file/d/1_7URnYm6cYLmEIddrP4ljKAg1Kk4-2hv/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=27334
in POLYMERS PAINT COLOUR JOURNAL - PPCJ > Vol. 197, N° 4514 (07/2007) . - p. 26-27[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 008161 - Périodique Bibliothèque principale Documentaires Disponible Incessant and economical technique for in-situ preparation of metallic-nano on/in polyester fabric / Bharat H. Patel in CHEMICAL FIBERS INTERNATIONAL, Vol. 71, N° 1 (04/2021)
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[article]
Titre : Incessant and economical technique for in-situ preparation of metallic-nano on/in polyester fabric Type de document : texte imprimé Auteurs : Bharat H. Patel, Auteur ; Aadhar A. Mandot, Auteur ; Satyajeet B. Chaudhari, Auteur Année de publication : 2021 Article en page(s) : p. 45-47 Langues : Anglais (eng) Catégories : Argent
Caractérisation
Cuivre
Microscopie électronique à balayage
Nanoparticules
Polyesters
Textiles et tissus synthétiques
ZincIndex. décimale : 677.4 Textiles artificiels Résumé : Composite textiles consisting of metallic nanoparticles dispersed in textiles fabric have been prepared by the reduction of metal ion from its salt at room temperature under normal atmospheric conditions. Morphology and structures have been investigated by SEM. Spherical nanoparticles were found to be homogeneously dispersed in/on the polyester (PET) fiber and the particles were elementally analyzed by the XRF technique. Note de contenu : - Materials
- Equipment
- Experimental methods
- Preparation of polyester-copper nanocomposite textile
- Preparation of polyester-silver nanocomposite textile
- Preparation of polyester-zinc nanocomposite textile
- Characterization of polyester-metal nano composites
- Results in discussion
- In situ formation of copper nanoparticles on/in polyester fabric
- In situ formation of silver nanoparticles on/in polyester fabric
- In-situ formation of zinc nanoparticles on/in polyester fabric
- Fig. 1 : Schematic process design for in situ synthesis of metallic nano on textile
- Fig. 2 : Color difference values of copper nano-loaded polyester fabric
- Fig. 3 : SEM images of normal polyester fabric and in-situ synthesized copper nanoparticles on polyester fabric
- Fig. 4 : Color difference values of Ag nano loaded polyester fabric
- Fig. 5 : SEM images of normal polyester fabric and in-situ synthesized and stabilized silver nanoparticles polyester fabric
- Fig. 6 : SEM images of normal polyester fabric and in-situ synthesized and stabilized and stabilized zinc nanoparticles on polyester fabric
- Table 1 : Polyester fabric specification
- Table 2 : Amount of copper detected on 78.5 mm2 polyester with XRF
- Table 3 : Amount of silver detected on 78.5 mm2 polyesters with XRF
- Table 4 : Amount of zinc detected on polyester fabric with XRFEn ligne : https://drive.google.com/file/d/1pjr1OG7ZgmVPkwbbAhT4AIpYMeQvjlno/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=35561
in CHEMICAL FIBERS INTERNATIONAL > Vol. 71, N° 1 (04/2021) . - p. 45-47[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 22645 - Périodique Bibliothèque principale Documentaires Disponible Increased productivity - an added bonus / Georg Biber in INTERNATIONAL SURFACE TECHNOLOGY (IST), N° 2/2010 (2010)
PermalinkInfluence du cycle thermique de transformation sur les propriétés de composites verre/polyester et verre/époxy / Christophe Baley in REVUE DES COMPOSITES ET DES MATERIAUX AVANCES, Vol. 15, N° 3 (2005)
PermalinkInfluence of anionic and amphoteric polymeric surfactants on grinding and stabilisation of pigmented polyester materials / Eugene V. Manerov in POLYMERS PAINT COLOUR JOURNAL - PPCJ, Vol. 201, N° 4558 (03/2011)
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PermalinkInfluence of cycloaliphatic compounds on the properties of polyurethane coatings / Shailja Awasthi in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 4, N° 1 (03/2007)
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PermalinkInfluence of different photoinitiatiors in the UV-LED curing of polyester acrylated varnishes / Ricardo Dossin in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 20, N° 1 (01/2023)
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PermalinkInfluence of nickel ions for electroless Ni–P plating on polyester fabric / R. H. Guo in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 9, N° 2 (03/2012)
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PermalinkInfluence of post-treatment media on morphological changes in transient macromolecules of polymeric fibers / Somayeh Baseri in INTERNATIONAL POLYMER PROCESSING, Vol. XXXIV, N° 4 (08/2019)
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PermalinkInfluence of the cross-sectional geometry on wettability and cleanability of polyester woven fabrics / Mir Mohammad Badrul Hasan in TENSIDE, SURFACTANTS, DETERGENTS, Vol. 45, N° 5/2008 (09-10/2008)
PermalinkInfluence of vinyl-terminated hyperbranched polyester on performance of films obtained by UV-initiated thiol–ene click reaction of A2 + B3 system / Juan Cheng in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 15, N° 5 (09/2018)
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PermalinkInfrared camouflage now also with powder coating in INTERNATIONAL SURFACE TECHNOLOGY (IST), Vol. 15, N° 4 (2022)
PermalinkInitiation à la chimie et à la physicochimie macromoléculaires, 4. Quelques grands polymères industriels / Groupe Français d'Etudes et d'Applications des polymères / Strasbourg : GFP (1982)
PermalinkInorganic/organic nanocomposite coatings : The next step in coating performance / Mark D. Soucek in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 3, N° 2 (04/2006)
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PermalinkInterfacial studies of crosslinked urethanes : Part III. Structure-property relationships in polyester waterborne polyurethanes / M. W. Urban in JOURNAL OF COATINGS TECHNOLOGY (JCT), Vol. 71, N° 888 (01/1999)
PermalinkIntertec has developed fire shelters made of high-performance composite materials that keep the contained equipment below itsmaximum permissible operating temperature / Martin Hess in JEC COMPOSITES MAGAZINE, N° 88 (04/2014)
PermalinkIntumescent coatings for polymer substrates / Claudio Pagella in POLYMERS PAINT COLOUR JOURNAL - PPCJ, Vol. 203, N° 4584 (05/2013)
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