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Epoxy resin from cardanol as partial replacement of bisphenol-A-based epoxy for coating application / Mukesh Kathalewar in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 11, N° 4 (07/2014)
[article]
Titre : Epoxy resin from cardanol as partial replacement of bisphenol-A-based epoxy for coating application Type de document : texte imprimé Auteurs : Mukesh Kathalewar, Auteur ; Anagha S. Sabnis, Auteur Année de publication : 2014 Article en page(s) : p. 601-618 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Anticorrosion
Cardanol
Epoxydes
Essai Wolff-Wilborn
Ressources renouvelables
Revêtements
Revêtements -- Propriétés chimiques:Peinture -- Propriétés chimiques
Revêtements -- Propriétés mécaniques:Peinture -- Propriétés mécaniques
Revêtements -- Propriétés thermiques:Peinture -- Propriétés thermiques
Test d'immersionIndex. décimale : 667.9 Revêtements et enduits Résumé : With continuous depletion of petrochemical feedstock and their rising prices, the chemical industry is now looking for alternative renewable and sustainable materials. Such materials could be processed with various chemistries to produce high performance functional materials for a range of applications, such as plastics, coatings, constructions, pharmaceuticals, and food applications. Cardanol derived from cashew nut shell liquid has a reactive phenolic group and aliphatic double bond that could be exploited to produce novel functional materials for polymer and coating applications. It has previously been used for preparation of phenolics, epoxy, and phenalkamine hardeners. In this study, we report on the preparation of novel epoxy resin from cardanol via simple a two-step reaction. The prepared resin with epoxy equivalent weight of 210–220 gm/eq was analyzed using FTIR and NMR spectroscopy. The epoxy resin was then used as binder along with bisphenol-A-based epoxy resin (DGEBPA) at various weight proportions and cured with different amine hardeners. The cured coatings were analyzed for physical, mechanical, and chemical properties for optimization of the coating formulation. The study conducted showed that 40–60% of DGEBPA resulted in comparable properties to that of completely DGEBPA-based system. Further, thermal and anticorrosive properties of the optimized coatings were also evaluated. Note de contenu : - EXPERIMENTAL : Materials - Methods - Substrate pretreatment - Coating application
- CHARACTERIZATION
- INSTRUMENTATION : Fourier transform infrared spectroscopy (FTIR) - Nuclear magnetic resonance spectroscopy (NMR) - Gel permeation chromatography (GPC) - Differential scanning calorimetry (DSC)
- RESULTS AND DISCUSSION : Synthesis of TGC resin - Coating properties
- MECHANICAL PROPERTIES
- CHEMICAL PROPERTIES
- EFFECT OF IMMERSION TEST ON ADHESION, PENCIL AND SCRATCH HARDNESS OF THE COATING
- GENERAL DISCUSSION : Thermal properties - Anticorrosive propertiesDOI : 10.1007/s11998-014-9570-2 En ligne : https://link.springer.com/content/pdf/10.1007%2Fs11998-014-9570-2.pdf Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=21721
in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH > Vol. 11, N° 4 (07/2014) . - p. 601-618[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 16424 - Périodique Bibliothèque principale Documentaires Disponible Glycolytic depolymerization of PET waste using MP-diol and utilization of recycled product for UV-curable wood coating / Vandana Jamdar in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 15, N° 2 (03/2018)
[article]
Titre : Glycolytic depolymerization of PET waste using MP-diol and utilization of recycled product for UV-curable wood coating Type de document : texte imprimé Auteurs : Vandana Jamdar, Auteur ; Mukesh Kathalewar, Auteur ; Anagha Sabnis, Auteur Année de publication : 2018 Article en page(s) : p. 259-270 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Bois -- Revêtements
Bouteilles en matières plastiques -- Recyclage
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.
Matières plastiques -- Recyclage
Oligomères
Polyéthylène téréphtalate
Polymères -- Détérioration
Polymères -- Synthèse
Revêtements -- Séchage sous rayonnement ultravioletIndex. décimale : 667.9 Revêtements et enduits Résumé : Polyethylene terephthalate (PET) waste recycling has become a worldwide research interest for industries and academic institutes due its inevitable environmental impact. The main objective of current research work is to target efficient recycling of PET waste from mineral water bottles by the glycolysis method and subsequent use of the recycled product for value-added coating application. In the present study, we report on MP-diol (2-methyl-1,3-propanediol) which is not explored much for the chemical recycling of PET, having a branched aliphatic diol with two primary hydroxyls, for glycolysis reaction. The reaction parameters were optimized for microwave-assisted technique by varying the ratio of raw materials, reaction time, temperature, and power. The reaction parameters were optimized, and the recycled oligomeric product (OPETMPD) was separated, purified, and characterized by chemical and spectroscopic methods. Subsequently, dimethacrylated oligoesters of PET oligomer (UV oligomer) were synthesized by methacrylation of the glycolyzed PET product (OPETMPD). The synthesized UV oligomer was evaluated using chemical and spectroscopic methods. Ultraviolet (UV) radiation-curable formulations were prepared using synthesized UV oligomer and applied on wooden panels. The coatings were cured using UV-curing machine and evaluated for their performance properties. The partial replacement of UV oligomer in UV formulations exhibited comparative coating performance properties with respect to conventional UV formulation. Note de contenu : - EXPERIMENTAL : Materials - Depolymerization of PET waste using MP-diol by microwave technique - Methacrylation of recycled oligomeric product (UV oligomer) - Formulations of UV-curable wood coatings - Characterization - Instrumentation
- RESULTS AND DISCUSSION : Depolymerization of PET using MP-diol (OPETMPD) - Synthesis and characterization of UV oligomer - UV-curing formulationsDOI : 10.1007/s11998-017-9992-8 En ligne : https://link.springer.com/content/pdf/10.1007%2Fs11998-017-9992-8.pdf Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=30278
in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH > Vol. 15, N° 2 (03/2018) . - p. 259-270[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 19742 - Périodique Bibliothèque principale Documentaires Disponible
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Titre : Instant colour in a can : The history, design and uses of aerosol paints Type de document : texte imprimé Auteurs : Mukesh Kathalewar, Auteur ; Nilesh Shinde, Auteur ; Anagha S. Sabnis, Auteur Année de publication : 2012 Article en page(s) : p. 34-39 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Aérosols
RevêtementsIndex. décimale : 667.9 Revêtements et enduits Résumé : The development of aerosol technology from the 18th century to the present day is outlined. The first true paint aerosols were introduced in 1949. Selection of binders, pigments and propellants is revewed. Problems of foaming and can corrosion with waterborne aerosol paints have been overcome, and today many specialised paints can be applied from aerosol cans. Note de contenu : - The evolution of aerosol concepts
- Formulating aerosol paints : resin and pigment issues
- Aerosol system affects solvent selection
- Propellant choice and developments
- Design considerations for aerosol cans
- Development of waterborne aerosol paints
- Two cans in one : 2K aerosol paints
- Aerosols satisfy the need for many applicationsEn ligne : https://drive.google.com/file/d/1hGxayIqmWL96hfCkwzc2f0x00n-K2-1f/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=15725
in EUROPEAN COATINGS JOURNAL (ECJ) > N° 9 (09/2012) . - p. 34-39[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 14125 - Périodique Bibliothèque principale Documentaires Disponible Polyurea coatings and its versatile nature / Mukesh Kathalewar in PAINTINDIA, Vol. LXI, N° 8 (08/2011)
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Titre : Polyurea coatings and its versatile nature Type de document : texte imprimé Auteurs : Mukesh Kathalewar, Auteur ; Amey Bhogale, Auteur ; Suraj Mare, Auteur Année de publication : 2011 Article en page(s) : p. 67-75 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Elastomères
Polyurée
Revêtements protecteursIndex. décimale : 667.9 Revêtements et enduits Résumé : Polyurea is an elastomer that is obtained by mixing two reactive components : an isocyanates component and an amine component. Two-component polyurea elastomeric coating systems are the newest technology to the protective coating industry. Polyurea coatings give exceptional physycal properties such as high hardness, flexibility, tear and tensile strength, chemical and water resistance ; which are even better compared to polyurethane and epoxy coatings. A major advantage of polyurea coatings is the fact thay they set within a matter of seconds and take just a few hours to cure through. This allows surfaces coated with polyurea to be reopened for use without any limitations after just 24 hours. Unlike other spray coatings, polyurea systems can also be applied in humid and low-temperature outdoor conditions.
Polyurea systems are used as spray-applied protective or wear coatings in various industrial applications, for example in the construction of tanks and industrial buildings, roads and bridges, in hard landscaping and in interior fitting.Note de contenu : - POLYUREA CHEMISTRY : Raw materials - Aromatic based polyurea (1. Isocyanate - 2. Diluents) - Resin blend or amind blend side - Polyetheramines - Chain extenders - Aliphatic based polyurea - Additives - Isocyanate reaction with water - Diamine & carbonic acid derivative - Polyurea vs polyurethane - Epoxy vs polyurea - Development in polyurea (1. Polyaspartic ester based polyurea - 2. Silicone modified polyurea - 3. The use of UV stabilizers in aliphatic polyurea - 4. Polyurea using 2, 4'-MDI isocyanate isomers - 5. Colored polyureas - 6. Low-pressure applied polyurea) - Polyurea application - Polyurea addition - Myths - Application scope for polyurea (a. Building and construction - b. Infrastructure - c. Transport - d. Others). Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=11873
in PAINTINDIA > Vol. LXI, N° 8 (08/2011) . - p. 67-75[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 13282 - Périodique Bibliothèque principale Documentaires Disponible