Accueil
Détail de l'auteur
Auteur Isil Acar |
Documents disponibles écrits par cet auteur
Ajouter le résultat dans votre panier Affiner la recherche
Epoxy-based paints from glycolysis products of postconsumer PET bottles : synthesis, wet paint properties and film properties / Kevser Bal in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 14, N° 3 (05/2017)
[article]
Titre : Epoxy-based paints from glycolysis products of postconsumer PET bottles : synthesis, wet paint properties and film properties Type de document : texte imprimé Auteurs : Kevser Bal, Auteur ; Kerim can Ünlü, Auteur ; Isil Acar, Auteur ; Gamze Güçlü, Auteur Année de publication : 2017 Article en page(s) : p. 747-753 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Analyse thermique
Bouteilles en matières plastiques -- Recyclage
Epoxydes
Formulation (Génie chimique)
GlycolyseLa glycolyse ou voie d'Embden-Meyerhof-Parnas est une voie métabolique d'assimilation du glucose et de production d'énergie. Elle se déroule dans le hyaloplasme (ou cytosol) de la cellule. Comme son nom l'indique elle nécessite du glucose et a pour produit du pyruvate. Ce dernier peut soit entrer dans le cycle de Krebs, qui se déroule dans la mitochondrie des eucaryotes ou le cytoplasme des bactéries en aérobiose, soit être métabolisé par fermentation en anaérobiose, pour produire par exemple du lactate ou de l'éthanol.
Polyéthylène téréphtalate
Polymères -- Détérioration
Résonance magnétique nucléaire
Revêtements:Peinture
Test d'immersionIndex. décimale : 667.9 Revêtements et enduits Résumé : Glycolysis of waste polyethylene terephthalate (PET) flakes obtained from grinding postconsumer bottles was carried out at 180–190°C, and molar ratios of PET/EG were taken as 1/6. Reaction product was extracted by hot water, and water soluble crystallizable fraction and water insoluble fraction were obtained. These fractions were characterized by hydroxyl value determination. Water soluble crystallizable fraction obtained from glycolysis product was used for synthesis of PET-based epoxy resin. Two epoxy-based paints were prepared using different amounts of PET-based epoxy resin. Wet paint properties, and chemical and physical film properties of paints containing waste PET were determined. Increasing the rate of PET-based epoxy resin in paint formulation did not have a negative effect on the wet paint properties and dry film properties of epoxy-based paints containing waste PET. Note de contenu : - EXPERIMENTAL : Materials - Glycolysis of waste PET - Synthesis of epoxy resins - Synthesis of epoxy-based paints containing waste PET - Wet paint properties of paints - Surface coating properties of paints
- RESULTS AND DISCUSSION : Wet paint properties of paints - Surface coating properties of paintsDOI : 10.1007/s11998-016-9895-0 En ligne : https://link.springer.com/content/pdf/10.1007%2Fs11998-016-9895-0.pdf Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=28582
in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH > Vol. 14, N° 3 (05/2017) . - p. 747-753[article]Réservation
Réserver ce document
Exemplaires (1)
Code-barres Cote Support Localisation Section Disponibilité 18899 - Périodique Bibliothèque principale Documentaires Disponible Synthesis of four-component acrylic-modified water-reducible alkyd resin : investigation of dilution ratio effect on film properties and thermal behaviors / Özge Naz Büyükyonga in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 14, N° 1 (01/2017)
[article]
Titre : Synthesis of four-component acrylic-modified water-reducible alkyd resin : investigation of dilution ratio effect on film properties and thermal behaviors Type de document : texte imprimé Auteurs : Özge Naz Büyükyonga, Auteur ; Nagihan Akgün, Auteur ; Isil Acar, Auteur ; Gamze Güçlü, Auteur Année de publication : 2017 Article en page(s) : p. 117-128 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Dilution
Polyacryliques
Polyalkyde modifiée acrylique
Polyalkydes
Revêtement de surface
Revêtements -- Propriétés chimiques
Revêtements -- Propriétés physiques
Revêtements -- Propriétés thermiquesIndex. décimale : 667.9 Revêtements et enduits Résumé : This study investigated the effect of the dilution ratio on film properties of acrylic-modified water-reducible alkyd resins. First, new four-component acrylic-modified alkyd resins based on 1,3-propanediol containing 40% of the equivalent amount of acrylic copolymer to alkyd resin were synthesized using the fatty acid method. The synthesized acrylic-modified alkyd resin was then dissolved in isopropyl alcohol (IPA) at various ratios and further diluted using distilled water at various ratios to obtain by-weight percentages of 70/50, 70/60, and 80/60 of solid content to IPA and water, respectively. Films of the modified alkyd resins were prepared, and cured at 150°C for 1 h, then their physical and chemical surface coating properties and thermal behaviors were investigated. The best results were obtained for the by-weight percentages of 80/60. Note de contenu : - EXPERIMENTAL : Materials - Preparation of acrylic-modified water-reducible alkyd resins - Preparation of water-reducible acrylic-modified alkyd resin films - Surface coating properties of water-reducible acrylic-modified alkyd resin films - FTIR analysis of acrylic copolymer - Thermogravimetric analysis of water-reducible acrylic-modified alkyd resin films
- RESULTS AND DISCUSSION : FTIR analysis of acrylic copolymer - Surface coating properties of water-reducible acrylic-modified alkyd resin films - Thermogravimetric analysis of water-reducible acrylic-modified alkyd resin films
- CONCLUSIONS : Physical film properties - Chemical film properties - Thermal propertiesDOI : 10.1007/s11998-016-9835-z En ligne : https://link.springer.com/content/pdf/10.1007%2Fs11998-016-9835-z.pdf Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=27794
in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH > Vol. 14, N° 1 (01/2017) . - p. 117-128[article]Réservation
Réserver ce document
Exemplaires (1)
Code-barres Cote Support Localisation Section Disponibilité 18674 - Périodique Bibliothèque principale Documentaires Disponible Synthesis of PET-based urethane-modified alkyd resins from depolymerization intermediates of post-consumer PET bottles: coating properties and thermal behaviors / Cavusoglu Ferda Civan in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 20, N° 2 (03/2023)
[article]
Titre : Synthesis of PET-based urethane-modified alkyd resins from depolymerization intermediates of post-consumer PET bottles: coating properties and thermal behaviors Type de document : texte imprimé Auteurs : Cavusoglu Ferda Civan, Auteur ; Isil Acar, Auteur Année de publication : 2023 Article en page(s) : p. 741-761 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Alkyde modifié uréthane
Bouteilles en matières plastiques -- Recyclage
Dépolymérisation
Fourier, Spectroscopie infrarouge à transformée de
Matières plastiques -- Déchets
Polyéthylène téréphtalate
Polymères -- Synthèse
Résistance chimique
Revêtement de surface
Revêtements (produits chimiques)
Revêtements -- Propriétés physiques
Revêtements -- Propriétés thermiques
Revêtements organiques
ThermogravimétrieIndex. décimale : 667.9 Revêtements et enduits Résumé : Urethane-modified alkyd resins were synthesized using the depolymerization intermediates obtained from simultaneous hydrolysis–glycolysis reactions of post-consumer poly(ethylene terephthalate) (PET) bottles with dipropylene glycol (DPG) and water. For this aim, first, the synthesis of a four-component reference alkyd resin having an oil content of 50% was synthesized by using tall oil fatty acid (TOFA), trimethylolpropane (TMP), phthalic anhydride (PA), and dipropylene glycol (DPG). The PET-based alkyd resins were also synthesized using different amounts and types of purified and fractionated depolymerization intermediates (water-insoluble fraction, WIF, and water-soluble and crystallizable fraction, WSCF) under the same reaction conditions. For the synthesis of PET-based alkyd resins, the depolymerization intermediates were used partially or completely instead of dibasic acid and/or diol components in alkyd resin formulations. In order to determine the optimum modification ratio for urethane-modified alkyd resin synthesis, the reference alkyd resin was reacted with toluene diisocyanate (TDI) at different molar ratios (NCO/OH: 1/1, 1/2, and 1/3), and the optimum NCO/OH ratio was determined as 1/1, according to the surface coating properties. And, then, all PET-based urethane-modified alkyd resins were prepared by the modification reactions of the PET-based alkyd resins with TDI at an optimum ratio. At the end of the study, it was observed that the use of waste PET intermediates (WIF or WSCF) did not cause any negative effects on physical/chemical surface coating and thermal properties ; on the contrary, some properties were obtained as superior than that of the reference resin. In conclusion, it seems possible to use PET-based urethane-modified alkyd resin could be used as a cheap, environmentally friendly, and relatively economic binder component in synthetic paint formulations. In the synthesis of urethane-modified alkyd resin, using a certain amount of waste PET intermediate instead of dibasic acid and/or diol component will reduce raw material costs and also benefit the environment by re-evaluation of recycled PET. Thus, it could be both possible to recycle of post-consumer PET bottles, which are a valuable waste, and to provide cheap raw materials without compromising its features for paint formulations. These results are remarkable in terms of sustainability and waste management besides are also important for the economy and paint industry. Note de contenu : - MATERIALS AND METHODS : Materials - Instruments - Methods - FTIR analyses - Surface coating properties - Thermal analyses
- RESULTS AND DISCUSSION : FTIR analysis results - Surface coating tests results - TGA analysis results
- Table 1 : Depolymerization reactions conditions and properties of the depolymerization intermediates
- Table 2 : Symbols and compositions of the four-component alkyd resins used in the synthesis of the urethane-modified alkyd (UA) resins
- Table 3 : Symbols, components, and modification ratios of the urethane-modified alkyd (UA) resins
- Table 4 : Drying stages and physical surface coating properties of the reference urethane-modified alkyd (UA) resins
- Table 5 : Chemical surface coating properties of the reference urethane-modified alkyd (UA) resins
- Table 6 : Drying time test results of the urethane-modified alkyd (UA) resins
- Table 7 : Physical surface coating properties of the urethane-modified alkyd (UA) resins
- Table 8 : Alkali resistance test results of the urethane-modified alkyd (UA) resins
- Table 9 : Acid resistance, salt-water resistance, and environmental resistance test results of the urethane-modified alkyd (UA) resins
- Table 10 : Water resistance test results of the urethane-modified alkyd (UA) resins
- Table 11: Solvent resistance test results of the urethane-modified alkyd (UA) resins
- Table 12 : The temperatures required for reaching certain weight losses (%)DOI : https://doi.org/10.1007/s11998-022-00705-y En ligne : https://link.springer.com/content/pdf/10.1007/s11998-022-00705-y.pdf?pdf=button% [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=39316
in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH > Vol. 20, N° 2 (03/2023) . - p. 741-761[article]Réservation
Réserver ce document
Exemplaires (1)
Code-barres Cote Support Localisation Section Disponibilité 24056 - Périodique Bibliothèque principale Documentaires Disponible