Bio-based hybrid polymers from vinyl ester resin and modified palm oil : synthesis and characterization / A. Fakhari in INTERNATIONAL POLYMER PROCESSING, Vol. XXXII, N° 1 (03/2017)  

[article]  inINTERNATIONAL POLYMER PROCESSING > Vol. XXXII, N° 1 (03/2017) . - p. 20-25 Titre : Bio-based hybrid polymers from vinyl ester resin and modified palm oil : synthesis and characterization Type de document : texte imprimé Auteurs : A. Fakhari, Auteur ; A. R. Rahmat, Auteur ; M. U. Wahit, Auteur ; R. Arjmandi, Auteur Année de publication : 2017 Article en page(s) : p. 20-25 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Analyse mécanique dynamique Caractérisation Copolymère vinyle ester Epoxydation Huile de palme et constituants Matières plastiques -- Propriétés mécaniques Microscopie électronique à balayage Polyaddition Polymères -- Synthèse Thermodurcissables Index. décimale : 668.4 Plastiques, vinyles Résumé : A series of bio-based hybrid thermosets composed of maleinated acrylated epoxidized palm oil (MAEPO) and vinyl ester resin (VE) were produced using free radical-induced crosslinking. The amount of petroleum-based resin which was replaced by bio-resin (MAEPO) was varied from 5 to 20 wt%. The structure of the polymer systems was investigated by scanning electron microscopy and dynamic mechanical analysis. The mechanical properties of the VE/MAEPO resins were studied using tensile, flexural and impact tests. The result obtained from structural analysis revealed that for the polymer hybrids with up to 20 wt% bio-resin content, there is good compatibility between MAEPO and VE as no phase separation was observed for these systems. The prepared eco-friendly bio-based thermosetting resins exhibit remarkable improvement in toughness parameters, such as ductility and impact strength, thereby showing potential for use in composites and nanocomposites applications. Note de contenu : - EXPERIMENTAL : Materials - Preparation of the bio-based VE/MAEPO resins - Testing and characterization - RESULTS AND DISCUSSION : Scanning electron microscopy (SEM) - Mechanical properties of MAEPO/VE polymer resins - Dynamic mechanical analysis DOI : 10.3139/217.3166 En ligne : https://drive.google.com/file/d/1ROvMLEhuXweTSFkB1YoJSfDrTsfse9th/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=27975 [article]

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Effect of solvents on the curing and properties of fully bio-based thermosets for coatings / Songqi Ma in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 14, N° 2 (03/2017)  

[article]  inJOURNAL OF COATINGS TECHNOLOGY AND RESEARCH > Vol. 14, N° 2 (03/2017) . - p. 367-375 Titre : Effect of solvents on the curing and properties of fully bio-based thermosets for coatings Type de document : texte imprimé Auteurs : Songqi Ma, Auteur ; Curtiss S. Kovash, Auteur ; Dean C. Webster, Auteur Année de publication : 2017 Article en page(s) : p. 367-375 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Analyse thermique Biomatériaux Epoxydation Ressources renouvelables Réticulants Revêtements -- Propriétés mécaniques:Peinture -- Propriétés mécaniques Revêtements -- Propriétés thermiques:Peinture -- Propriétés thermiques solvants Thermodurcissables Index. décimale : 667.9 Revêtements et enduits Résumé : With the increasing concern about the depletion of fossil reserves and greenhouse gas emissions, it is desired to replace coatings which are made using petrochemical-based materials with renewable alternatives such as bio-based polymers. In this paper, fully bio-based thermosets for coatings were prepared from epoxidized sucrose soyate derived from sucrose and soybean oil fatty acid along with citric and malic acids found naturally in juices with the assistance of different solvents. The solvents with reasonable boiling point and good miscibility with citric acid and malic acid, such as water, ethanol, 1-propanol, 2-propanol, and 1,4-dioxane, were screened and used to investigate their effects on the curing and properties of the fully bio-based thermosets. The curing reactivity was studied by examining the gel time and nonisothermal curing process with DSC. The thermal and mechanical properties as well as coating performance properties were also investigated. Note de contenu : - EXPERIMENTAL : Materials - Screening solvents - Preparation of crosslinked networks - Characterization - RESULTS AND DISCUSSION : Solvents effects on the reactivity of citric acid/ESS systems - Gel content of the cured samples - Thermal and mechanical properties of the cured samples - Thermal degradation of the cured samples - Coating properties of the cured samples DOI : 10.1007/s11998-016-9863-8 En ligne : https://link.springer.com/content/pdf/10.1007%2Fs11998-016-9863-8.pdf Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=28152 [article]

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Effect of the addition of ENR on foam properties of EVA/NR/Clay nanocomposites / Natinee Lopattananon in INTERNATIONAL POLYMER PROCESSING, Vol. XXXIII, N° 1 (03/2018)  

[article]  inINTERNATIONAL POLYMER PROCESSING > Vol. XXXIII, N° 1 (03/2018) . - p. 42-51 Titre : Effect of the addition of ENR on foam properties of EVA/NR/Clay nanocomposites Type de document : texte imprimé Auteurs : Natinee Lopattananon, Auteur ; J. Julyanon, Auteur ; A. Masa ; B. Thongnuanchan Année de publication : 2018 Article en page(s) : p. 42-51 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Adhésion Alliages polymères Argile Caoutchouc Copolymère éthylène acétate de vinyle Elastomères Epoxydation Morphologie (matériaux) Mousses plastiques Mousses plastiques -- Propriétés mécaniques Thermocinétique Index. décimale : 668.4 Plastiques, vinyles Résumé : Elastomeric foams based on 60/40 EVA/NR blend nanocomposite were prepared by melt mixing EVA, NR and clay (5 phr) in an internal mixer, and later foamed with azodicarbonamide through compression molding. Epoxidized natural rubber (ENR) with epoxide content of 25 mole% was used as a compatibilizer to improve interfacial adhesion between EVA and NR. The addition effect of ENR concentration on the blending and properties of EVA/NR blend nanocomposite foams was studied. XRD and TEM results showed that the clay in the EVA/NR blends was intercalated and locally existed in the NR phase as well as at the interface between EVA and NR. The EVA/NR blend nanocomposites showed dispersed NR domains in continuous EVA phase. The addition of ENR into EVA/NR blend nanocomposites reduced the size of the dispersed NR phase, indicating that the blend miscibility was improved. Mechanistic model was proposed for the miscibility improvement of a two-phase structure of EVA/NR blend nanocomposite in the presence of ENR and clay dispersion. However, the improved blend morphology did not significantly affect the cell structure of EVA/NR blend nanocomposites. The observation of cell structure of EVA/NR blend nanocomposites suggested that the increased addition of ENR caused a little increase in cell density, and had no influence on cell size. Furthermore, with increasing addition level of ENR in the blend nanocomposite foams, the foam density slowly decreased, whereas the specific tensile strength slightly increased. The elastomeric recovery of blend nanocomposite foams decreased with increasing ENR content. The thermal conductivity of EVA/NR blend nanocomposite foams also decreased with more addition of ENR, which had beneficial result in improving thermal insulation property. Note de contenu : - EXPERIMENTAL : Materials - Fabrication of EVA/NR blend nanocomposite foams - Characterizations of EVA/NR blend nanocomposite foams - RESULTS AND DISCUSSION : Structure of Clay - Phase morphology of EVA/NR blend nanocomposites - Structure of EVA/NR blend nanocomposite foams - Density of EVA/NR blend nanocomposite foams - Mechanical properties of EVA/NR blend nanocomposite foams - Thermal conductivity of EVA/NR blend nanocomposite foams DOI : 10.3139/217.3358 En ligne : https://drive.google.com/file/d/1k7jDpCbwR7rzIizlvE5xG_ObwriFZUBe/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=30167 [article]

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Effects of surface modification of cellulose nanocrystals (CNCs) on curing behavior, optical, and thermal properties of soybean oil bio-nanocomposite / Nicolas Auclair in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 17, N° 1 (01/2020)  

[article]  inJOURNAL OF COATINGS TECHNOLOGY AND RESEARCH > Vol. 17, N° 1 (01/2020) . - p. 57-67 Titre : Effects of surface modification of cellulose nanocrystals (CNCs) on curing behavior, optical, and thermal properties of soybean oil bio-nanocomposite Type de document : texte imprimé Auteurs : Nicolas Auclair, Auteur ; Alireza Kaboorani, Auteur ; Bernard Riedl, Auteur ; Véronic Landry, Auteur Année de publication : 2020 Article en page(s) : p. 57-67 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Cellulose La cellulose est un glucide constitué d'une chaîne linéaire de molécules de D-Glucose (entre 200 et 14 000) et principal constituant des végétaux et en particulier de la paroi de leurs cellules. Dispersions et suspensions Epoxydation Huile de soja Matériaux hybrides Nanoparticules Réticulation (polymérisation) Revêtements -- Propriétés mécaniques Revêtements -- Propriétés thermiques Revêtements organiques Rugosité Stabilité thermique Transition vitreuse Transparence (optique) Index. décimale : 667.9 Revêtements et enduits Résumé : In this study, UV cured bio-nanocomposite coating systems were developed. An acrylated epoxidized soybean oil (AESO) and cellulose nanocrystals (CNCs) were used to make these coating systems. The CNC surface was modified by two different methods so as to achieve good compatibility between the CNC and AESO. Thermal stability, glass transition temperature, optical clarity (transparency), and curing behavior of the coating systems were assessed. The addition of CNC altered the thermal stability of the bio-nanocomposites slightly. Addition of CNC increased glass transition temperature of AESO. This increase was a function of the CNC surface modification method and CNC loading level. The transparency of the bio-nanocomposites was reduced by the addition of CNC. The curing behavior of these coating systems was not significantly different from that of a pure cured AESO matrix. A study of the morphology of the nanocomposite films by AFM demonstrated that the modified CNC had good compatibility with the AESO matrix. Note de contenu : - EXPERIMENTAL METHODS AND MATERIALS : Materials - Methods - RESULTS AND DISCUSSION : Curing behavior - Thermal stability - Glass transition temperature (Tg) - Transparency - Surface roughness DOI : 10.1007/s11998-019-00237-y En ligne : https://link.springer.com/content/pdf/10.1007/s11998-019-00237-y.pdf Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=33727 [article]

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Epoxidized esters of palm kernel oil as an effective plasticizer for PVC : a study of mechanical properties and effect of processing conditions / Kingshuk Dutta in INTERNATIONAL POLYMER PROCESSING, Vol. XXIX, N° 4 (08/2014)  

[article]  inINTERNATIONAL POLYMER PROCESSING > Vol. XXIX, N° 4 (08/2014) . - p. 495-506 Titre : Epoxidized esters of palm kernel oil as an effective plasticizer for PVC : a study of mechanical properties and effect of processing conditions Type de document : texte imprimé Auteurs : Kingshuk Dutta, Auteur ; S. Das, Auteur ; Patit Paban Kundu, Auteur Année de publication : 2014 Article en page(s) : p. 495-506 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Allongement à la rupture Chlorure de polyvinyle Epoxydation Essai de dureté Essais dynamiques Esters Huile de palme et constituants Plastifiants Plastifiants -- Propriétés mécaniques Traction (mécanique) Transition vitreuse Index. décimale : 668.4 Plastiques, vinyles Résumé : One of the most commonly used vegetable oil plasticizer in polyvinyl chloride (PVC) is epoxidized soybean oil (ESBO). On the contrary, epoxidized palm oil is among the least used, because of its low compatibility with PVC. This work reports that epoxidized and esterified palm kernel oil (EEPKO) has the potential to be used as a plasticizer for PVC. In this study, it was found that a maximum of 65 phr of EEPKO could be incorporated within the PVC resin. In addition, subjecting this EEPKO plasticized PVC (p-PVC) at a processing temperature of 200 °C resulted in much reduced plasticizer loss. EEPKO lowers the glass transition temperature of PVC from 79 °C to ?23 °C. The optimum mechanical properties, namely tensile strength, elongation at break and hardness, were obtained for p-PVC processed at 200 °C. Note de contenu : - EXPERIMENTAL : Materials - Preparation of esters and epoxidation - Sample preparation - Plasticizer loss and change of glass transition temperature (Tg) of PVC - Tensile strength, elongation at break and hardness - RESULTS AND DISCUSSION : Influence of processing temperature and analysis of plasticizer loss - Determination of Tg of EEPK-plasticized PVC - Estimation of solubility parameter and compatibility - Determination of tensile strength, elongation at break and hardness of p-PVC DOI : 10.3139/217.2922 En ligne : https://drive.google.com/file/d/1bomYRp7Hflpk6jUau6B1Qu4RDTG5sygF/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=21829 [article]

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Epoxidized fatty acid-derived oxazoline in thermoset coatings / David L. Trumbo in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 5, N° 1 (03/2008)  

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Epoxidized methyl ricinoleate bio-plasticizer with a pendant acetate ester for PVC artificial material : circumventing existing limit on achievable migration resistance / Siyu Pan in JOURNAL OF LEATHER SCIENCE AND ENGINEERING, Vol. 1 (Année 2019)  

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Epoxidized poly(decenyloxazoline) in thermoset coatings / David L. Trumbo in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 3, N° 1 (01/2006)  

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Green initiatives in resin synthesis : A sustainable approach / Jitendra Khanderay in PAINTINDIA, Vol. LXXXIII, N° 11 (11/2023)  

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Influence of acidic catalysts on epoxidation of soybean oil using per acid formed in-situ / V. K. Tyagi in PAINTINDIA, Vol. LVIII, N° 3 (03/2008)  

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Phenolic epoxidised polyurethane coating for petroleum tanks from available raw materials / A. M. F. Shakeb in SURFACE COATINGS INTERNATIONAL. PART B : COATINGS TRANSACTIONS, Vol. 88, B2 (05/2005)  

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Recent advances in polyurethane dispersion from renewable resources : A review / Kunal V. Yeole in PAINTINDIA, Vol. LXVIII, N° 4 (04/2018)  

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Self-emulsifiable soybean oil phosphate ester polyols for low-VOC corrosion resistant coatings / Yinzhong Guo in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 3, N° 4 (10/2006)  

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Solubility and durability of cardanol derived plasticizers for soft PVC / A. Greco in INTERNATIONAL POLYMER PROCESSING, Vol. XXXI, N° 5 (11/2016)  

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Study of the performance of polyurethane coatings derived from cottonseed oil polyol / Prashant Narute in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 13, N° 1 (01/2016)  

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Sulfitation of animal bone fat for use as a fatliquor / A. M. Ola in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 98, N° 5 (09-10/2014)  

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Synthesis and characterization of acrylated epoxidized flaxseed oil for biopolymeric applications / Anup Rana in INTERNATIONAL POLYMER PROCESSING, Vol. XXX, N° 3 (07/2015)  

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