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Preparation and anticorrosive performances of polysiloxane-modified epoxy coatings based on polyaminopropylmethylsiloxane-containing amine curing agent / Ling Chen in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 8, N° 4 (07/2011)
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Titre : Preparation and anticorrosive performances of polysiloxane-modified epoxy coatings based on polyaminopropylmethylsiloxane-containing amine curing agent Type de document : texte imprimé Auteurs : Ling Chen, Auteur ; Shuxue Zhou, Auteur ; Shisen Song, Auteur ; Bin Zhang, Auteur ; Guangxin Gu, Auteur Année de publication : 2011 Article en page(s) : p. 481-487 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Anticorrosion
Cardanol
Epoxydes
Revêtements
Revêtements protecteurs
SiliconesLes silicones, ou polysiloxanes, sont des composés inorganiques formés d'une chaine silicium-oxygène (...-Si-O-Si-O-Si-O-...) sur laquelle des groupes se fixent, sur les atomes de silicium. Certains groupes organiques peuvent être utilisés pour relier entre elles plusieurs de ces chaines (...-Si-O-...). Le type le plus courant est le poly(diméthylsiloxane) linéaire ou PDMS. Le second groupe en importance de matériaux en silicone est celui des résines de silicone, formées par des oligosiloxanes ramifiés ou en forme de cage (wiki).
Spectroscopie d'impédance électrochimiqueIndex. décimale : 667.9 Revêtements et enduits Résumé : In this article, polysiloxane-modified epoxy coatings were prepared using the mixture (CPSA) polyaminopropylmethylsiloxane (PAPMS) oligomer/N-(2-hydroxyethyl)ethylenediamine as a curing agent and cardanol as a compatibilizer. The PAPMS oligomer was prepared from the controlled hydrolysis and condensation of (γ-aminopropyl)methyldimethoxysilane. Conventional epoxy coatings based on commercial phenalkamine epoxy curing agent (PECA) were also fabricated for comparison. The compatibility between the CPSA amine curing agent and epoxy resin was investigated by SEM and element-mapping measurements. The anticorrosive performances of the CPSA- or PECA-based epoxy coatings were thoroughly examined by electrochemical impedance spectroscopy (EIS), salt fog tests, and immersion experiments in acid (25 wt % NaCl). It was found that cardanol can dramatically improve the miscibility of CPSA with epoxy resins. Polysiloxane-modified (namely, CPSA-based) epoxy coatings have much better corrosion resistance than conventional (namely, PECA-based) epoxy coatings. Note de contenu : EXPERIMENTAL : Materials - Preparation of the hardener - Preparation of epoxy protective paints - Characterization
RESULTS AND DISCUSSION : FTIR analyses - The compatibility of CPSA with epoxy resin - Electrochemical impedance results - Anticorrosive performances - WeatherabilityDOI : 10.1007/s11998-010-9311-0 En ligne : https://link.springer.com/content/pdf/10.1007%2Fs11998-010-9311-0.pdf Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=12136
in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH > Vol. 8, N° 4 (07/2011) . - p. 481-487[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 013158 - Périodique Bibliothèque principale Documentaires Disponible 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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Titre : Solubility and durability of cardanol derived plasticizers for soft PVC Type de document : texte imprimé Auteurs : A. Greco, Auteur ; F. Ferrari, Auteur ; R. Velardi, Auteur ; M. Frigione, Auteur ; A. Maffezzoli, Auteur Année de publication : 2016 Article en page(s) : p. 577-586 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Absorption
Cardanol
Chlorure de polyvinyle
Durée de vie (Ingénierie)
Epoxydation
Essais accélérés (technologie)
Gélification
Plastifiants
Rhéologie
Solubilité
Souplesse (mécanique)Index. décimale : 668.4 Plastiques, vinyles Résumé : The aim of this work is the analysis of the suitability of cardanol derivatives as primary plasticizer for polyvinyl chloride (PVC). Cardanol derived plasticizers (CDP) were obtained by acetylation of cardanol, followed by epoxidation of the side chain double bonds. The developed procedures allowed to achieve high yields of acetylated cardanol, whereas plasticizers characterized by different yields of epoxidation were obtained, according to the used synthesis procedure. Rheological analysis was used in order to study the gelation process of PVC plastisols with CDP. A comparison of commercial phthalate and natural derived plasticizers showed that the CDP are characterized by adequate gelation properties, involving a complete absorption of the plasticizers at relatively low temperatures. The gelation properties showed a strong dependence on the yield of the epoxidation. In particular, lower gelation temperatures, higher plasticizer absorption and faster gelation were observed for higher epoxy content in the plasticizer. Finally, ageing tests were performed on soft PVC produced by the CDP. The weight loss of soft PVC with CDP is comparable to that of commercial plasticizers, particularly at high yields of epoxidation. DOI : 10.3139/217.3237 En ligne : https://drive.google.com/file/d/1YK59j8qoG1stCxiIvFJoeZBS3bl0mwKo/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=27395
in INTERNATIONAL POLYMER PROCESSING > Vol. XXXI, N° 5 (11/2016) . - p. 577-586[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 18491 - Périodique Bibliothèque principale Documentaires Disponible Studies on the extraction, modification and applications of CNSL/cardanol based epoxy resin / Ranjana Yadav in PAINTINDIA, Vol. LIX, N° 3 (03/2009)
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Titre : Studies on the extraction, modification and applications of CNSL/cardanol based epoxy resin Type de document : texte imprimé Auteurs : Ranjana Yadav, Auteur ; Deepak Srivastava, Auteur Année de publication : 2009 Article en page(s) : p. 69-104 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Cardanol
EpoxydesTags : 'Cashew nut shell liquid' (CNSL) Extraction Modification Application 'Résine époxyde' Index. décimale : 667.9 Revêtements et enduits Résumé : The use of fossil carbon-based monomers in the manufacture of polymers is going down because of their spiraling prices and high rate of depletion of the stocks. This necesitated a look at the renewable natural resources that can serve as alternative feddstock of monomers for the polymer industry. In this respect, cashew nut shell liquid (CNSL), an abundant agricultural byproduct, holds considerable promise as a source of unsaturated phenol, an excellent monomer for polymer production. Cardanol, a major constituent of CNSL, can be used for the preparation of cardanol-based novolac/resoleresins. The cardanol-based novolac resins can further be epoxidezed with epichlorohydrin resulting in epoxidized novolac resins. therefore, in the first part of the paper, extraction of cardanol from CNSL, development of novolac resins and epoxidized novolac resin sfrom cardanol or modified products from CNSL or cardanol and various application sectors which utilize modified cardanol-based products is reviewed. Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=6887
in PAINTINDIA > Vol. LIX, N° 3 (03/2009) . - p. 69-104[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 011333 - Périodique Bibliothèque principale Documentaires Disponible Sustainable cardanol-based multifunctional carboxyl curing agents for epoxy coatings: Si–S synergism / Kunal Wazarkar in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 17, N° 5 (09/2020)
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Titre : Sustainable cardanol-based multifunctional carboxyl curing agents for epoxy coatings: Si–S synergism Type de document : texte imprimé Auteurs : Kunal Wazarkar, Auteur ; Anagha Sabnis, Auteur Année de publication : 2020 Article en page(s) : p. 1217–1230 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Anticorrosifs
Anticorrosion
Caractérisation
Cardanol
Composés inorganiques -- Synthèse
Epoxydes
Formulation (Génie chimique)
Hydrophobie
Réticulants
Revêtements organiques
Silicium
SynergieIndex. décimale : 667.9 Revêtements et enduits Résumé : High-performance epoxy coatings were prepared by crosslinking commercial diglycidyl ether of bisphenol-A with silicon–sulfur containing di- and tetra-functional carboxyl curing agents based on cardanol. The curing agents were synthesized and products were analyzed by chemical, spectroscopic, and chromatographic techniques. In the next part, coatings were formulated by varying the ratio of epoxy resin to curing agents on equivalent basis, such as 1:0.6, 1:0.8, and 1:1. The coatings were applied on mild steel panels and cured at 150°C for 30 min. The resultant coatings were evaluated for performance properties including mechanical, chemical, optical, thermal anticorrosive, and flame retardant properties. It was observed that with an increase in concentration of silicon–sulfur containing curing agents, water contact angles of the coatings substantially increased. Moreover, electrochemical impedance spectroscopy, Tafel analysis, and salt spray studies revealed that anticorrosive properties of the coatings improved with an increase in concentration of silicon and sulfur. In spite of synergistic effect of silicon–sulfur, only marginal improvement in flame retardant properties was observed. Note de contenu : - EXPERIMENTAL : Synthesis of silicon containing dimer of cardanol (SIL) - Synthesis of Si–S containing multifunctional carboxyl curing agents - Formulation of coatings - Characterization - Instrumentation
- RESULTS AND DICUSSION : FTIR spectroscopy - 1H-NMR spectroscopy - Gel permeation chromatography - Coating propertiesDOI : https://doi.org/10.1007/s11998-020-00341-4 En ligne : https://link.springer.com/content/pdf/10.1007/s11998-020-00341-4.pdf Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=34568
in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH > Vol. 17, N° 5 (09/2020) . - p. 1217–1230[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 22303 - Périodique Bibliothèque principale Documentaires Disponible Synthesis and characterization of bio-based benzoxazine oligomer from cardanol for corrosion resistance application / Deepak M. Patil in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 14, N° 3 (05/2017)
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Titre : Synthesis and characterization of bio-based benzoxazine oligomer from cardanol for corrosion resistance application Type de document : texte imprimé Auteurs : Deepak M. Patil, Auteur ; Ganesh A. Phalak, Auteur ; Shashank T. Mhaske, Auteur Année de publication : 2017 Article en page(s) : p. 517-530 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Anticorrosifs
Anticorrosion
Benzoxazine
Biomatériaux
Cardanol
Composés organiques -- Synthèse
SilanesIndex. décimale : 667.9 Revêtements et enduits Résumé : The Mannich-like condensation of a cardanol, paraformaldehyde, and N,N′-bis(2-aminoethyl)ethane-1,2-diamine were carried out to synthesize the amine functional benzoxazine (Bnz) resin. The amine functionality of Bnz resin was evaluated by physiochemical methods, and the structure was characterized using Fourier transform infrared and 1H-nuclear magnetic resonance spectroscopy. The added functionality into the Bnz resin backbone was utilized to modify the Bnz resin structure by glycidoxypropyltrimethoxysilane (GPTMS) in various proportions. The results revealed that the silane-modified Bnz coatings have improved mechanical, chemical, and solvent resistance properties as compared to the neat Bnz coating. The gel and water absorption of polyamide-cured coatings also has been evaluated. Furthermore, the cured films have been evaluated for glass transition temperature (Tg) and thermal resistance by differential scanning calorimetry and thermogravimetric analysis, respectively. The corrosion resistance properties were studied by salt spray and electrochemical analysis. It was observed that the highly crosslinked structure of the GPTMS-modified Bnz coatings enhanced the barrier protection to corrosive species. Note de contenu : - EXPERIMENTAL : Synthesis of Bnz resin - Silane modification of Bnz resin
- CHARACTERIZATION : Physiochemical characterization - Instrumental - Coating characterization
- RESULTS AND DISCUSSION : FTIR analysis
- COATING CHARACTERIZATION : Mechanical properties - Chemical resistance - Solvent resistance - Gel content - Water absorption - Thermal analysis - Contact angle - Corrosion resistanceDOI : 10.1007/s11998-016-9892-3 En ligne : https://link.springer.com/content/pdf/10.1007%2Fs11998-016-9892-3.pdf Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=28562
in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH > Vol. 14, N° 3 (05/2017) . - p. 517-530[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 18899 - Périodique Bibliothèque principale Documentaires Disponible Synthesis and curing of cardanol-based vinyl ester resins for applications in surface coatings - I / Minakshi Sultania in PAINTINDIA, Vol. LIX, N° 12 (12/2009)
PermalinkSynthesis and properties of phosphorus-containing cardanol-based acrylates for flame-retardant UV/EB-cured coatings in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 18, N° 5 (09/2021)
PermalinkSynthesis and properties of UV-curable cardanol-based acrylate oligomers with cyclotriphosphazene core / Yan Yuan in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 16, N° 1 (01/2019)
PermalinkSynthesis of cardanol based epoxy resin for high solids UV curable coatings using bio based reactive diluent : review / Rupanshu Rastogi in PAINTINDIA, Vol. LXIX, N° 1 (01/2019)
PermalinkToughening of cardanol based epoxidized novolac resin with acrylonitrile butadiene liquid ruber / Ranjana Yadav in PAINTINDIA, Vol. LXII, N° 12 (12/2012)
PermalinkUtilising renewable resources to create radiation curable polymers / Firdous Habib in POLYMERS PAINT COLOUR JOURNAL - PPCJ, Vol. 203, N° 4590 (11/2013)
PermalinkUtilization of agro waste (CNSL) in coatings / Deepti Shikha in PAINTINDIA, Vol. LXI, N° 9 (09/2011)
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