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Auteur Kingshuk Dutta
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Department of Polymer Science and Technology - University of Calcutta - Kolkata - India
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Emerging research trends in the field of polyurethane and its nanocomposites : Chemistry, Synthesis, Characterization, Application in coatings and Future perspectives / Swati Jakhmola in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 21, N° 1 (01/2024)
[article]
Titre : Emerging research trends in the field of polyurethane and its nanocomposites : Chemistry, Synthesis, Characterization, Application in coatings and Future perspectives Type de document : texte imprimé Auteurs : Swati Jakhmola, Auteur ; Sonalee Das, Auteur ; Kingshuk Dutta, Auteur Année de publication : 2024 Article en page(s) : p. 137-172 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Charges (matériaux)
Matériaux autoréparants
Matériaux hybrides
Nanoparticules
Polyuréthanes
Recyclabilité
Résistance aux conditions climatiques
Revêtements organiquesIndex. décimale : 667.9 Revêtements et enduits Résumé : Polyurethane (PU) coatings are widely used in various industries due to their excellent mechanical strength, along with abrasion, chemical and weather resistance. Recently, use of dynamic bonds to increase the recyclability and self-healing properties of PU is being extensively explored. Incorporation of nanofillers into the PU matrix can further enhance their performance as a coating matrix for application demanding thermal stability, mechanical strength, abrasion resistance, corrosion resistance, foul resistance, smudge resistance and UV resistance. It has been reported that inclusion of nanofillers, like nano-silica, graphene, organoclay, zinc oxide and titanium dioxide can provide enhanced functionalities to the PU matrix owing to their small size and high surface area-to-volume ratio to design tailor made PU coatings with desired properties. This review highlights the classification of PUs based on different dynamic chemistry for imparting self-healing and recyclability properties to the polymer matrix. Further, it will also provide a detailed insight regarding various polyol sources used for the synthesis of PUs, technologies adopted to incorporate nanofillers into the PU matrix for developing PU nanocomposite for coating applications and properties associated with these coatings. A brief conclusion highlighting the present challenges and future prospects of the PU nanocomposite coatings is also presented. Note de contenu : - Polyurethane based on dynamic chemical bonds
- Development of polyurethane coatings from different bio-based sources
- Development of polyurethane coatings with different nanofillers
- Nano-silica
- Applications of polyurethane nanocomposites in coating technology
- Present challenges and prospect
ctsDOI : https://doi.org/10.1007/s11998-023-00841-z En ligne : https://drive.google.com/file/d/10yMX2E6U4MclPIoCpujOokEx3pvNB8nw/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=40439
in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH > Vol. 21, N° 1 (01/2024) . - p. 137-172[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 24443 - Périodique Bibliothèque principale Documentaires Disponible 24735 - Périodique Bibliothèque principale Documentaires Disponible 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)
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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 vitreuseIndex. 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-PVCDOI : 10.3139/217.2922 En ligne : https://drive.google.com/file/d/1bomYRp7Hflpk6jUau6B1Qu4RDTG5sygF/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=21829
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Code-barres Cote Support Localisation Section Disponibilité 16454 - Périodique Bibliothèque principale Documentaires Disponible Impact modification of isotactic polypropylene with ethylene-propylene diene monomer rubber / J. Banerjee in INTERNATIONAL POLYMER PROCESSING, Vol. XXXI, N° 2 (05/2016)
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Titre : Impact modification of isotactic polypropylene with ethylene-propylene diene monomer rubber Type de document : texte imprimé Auteurs : J. Banerjee, Auteur ; P. Soliya, Auteur ; M. B. Pallavi, Auteur ; P. Mukhopadhyay, Auteur ; S. Bandyopadhyay, Auteur ; D. Chakrabarty, Auteur ; Kingshuk Dutta, Auteur Année de publication : 2016 Article en page(s) : p. 188-197 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Alliages polymères
Anhydride maléique
Compatibilité chimique et physique
Copolymères -- Propriétés mécaniques
Copolymères greffés
Ethylène-propylène-diène monomère
Peroxyde de dicumyle
Polymères isotactiques
PolypropylèneIndex. décimale : 668.4 Plastiques, vinyles Résumé : The present work was done to improve the impact property of isotactic polypropylene (PP), especially at low temperatures, by incorporating ethylene propylene diene monomers (EPDM). This was done by ensuring compatibility between the two polymers with phase modifiers polyethylene grafted with maleic anhydride (PE-g-MA) and initiator dicumyl peroxide (DCP). In addition, attempts were also made to understand the fundamentals of impact toughening as well as fracture toughness, and to correlate the results with that of morphological evidences obtained from scanning electron microscopy (SEM) and X-ray diffraction (XRD) methods. Varying the ratios of all blend composition, mechanical properties were studied. It was observed that as the rubber fraction increased, the impact property as well as fracture toughness increased. All these tests also showed promising results when PE-g-MA was added, leading to more improvement in all the mechanical properties including increase in crystallite size. It had shown plasticization effect on the compositions, which could be further confirmed by differential scanning calorimetry (DSC) compared to the uncompatibilized ones. But when DCP was added, it behaved like an initiator which directly reacted with the PP matrix, decreasing the molecular weight of the blend with decreasing size of the crystallites. Note de contenu : - EXPERIMENTAL : Materials - Sample preparation - Characterization techiques
- RESULTS AND DISCUSSION : Analysis of impact strength of the compatibilized and the uncompatibilized blends - Evaluation and characterization of the fracture toughnessDOI : 10.3139/217.3143 En ligne : https://drive.google.com/file/d/1B2xYOGcGqh8ojjgsj6Ynl_TNaUTX1wEM/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=26173
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Code-barres Cote Support Localisation Section Disponibilité 17979 - Périodique Bibliothèque principale Documentaires Disponible