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Chlorinated maleinized guayule rubber as an adhesion promoter for polypropylene / Michael. D. Foster in JOURNAL OF COATINGS TECHNOLOGY (JCT), Vol. 71, N° 889 (02/1999)
[article]
Titre : Chlorinated maleinized guayule rubber as an adhesion promoter for polypropylene Type de document : texte imprimé Auteurs : Michael. D. Foster, Auteur ; Shelby F. Thames, Auteur Année de publication : 1999 Article en page(s) : p. 91-99 Note générale : Bibliogr. Langues : Américain (ame) Tags : 'Matériau revêtement' 'Peinture eau' Adhérence 'Matière plastique' 'Propène polymère' 'Traitement surface' 'Caoutchouc naturel' modifié' Chloration Furane-2,5-dione(2,5-dihydro) 'Promoteur adhérence' Index. décimale : 667.9 Revêtements et enduits Résumé : Chlorinated maleinized guayule rubbers (CMGR) were synthesized and applied as coatings onto polypropylene panels. CMGR orientation was critical to adhesion and was verified by contact angle measurements. Reducing the quantity of tetrahydrofuran (THF) decreased adhesion from 57 N/cm2 with pure THF to 23 N/cm2 with four percent THF in water. Percent maleinization above a critical concentration of 15 by weight decreased adhesion. However, 10% maleinization was required for dispersion stability in water while 5-10% concentration provided maximum adhesion. A five percent maleic CMGR dispersion at 240 g/L THF concentration was stable for less than 24 hr while a 10% maleic anhydride concentration has shown long-term stability. Note de contenu : - EXPERIMENTAL : Materials and equipment - FTIR analysis of CMGR - Titration of CMGR - Coating formulation - VOC effect on adhesion - Surface application - Coating surface analysis - Experimental design - Adhesion testing - Contact angle and calculation of the surface energy Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=17842
in JOURNAL OF COATINGS TECHNOLOGY (JCT) > Vol. 71, N° 889 (02/1999) . - p. 91-99[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 003558 - Périodique Bibliothèque principale Documentaires Disponible 009603 - Périodique Bibliothèque principale Documentaires Exclu du prêt Chlorinated-maleinized guayule rubber : a novel matting agent for powder coatings / William A. Purvis in JOURNAL OF COATINGS TECHNOLOGY (JCT), Vol. 68, N° 857 (06/1996)
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Titre : Chlorinated-maleinized guayule rubber : a novel matting agent for powder coatings Type de document : texte imprimé Auteurs : William A. Purvis, Auteur ; Shelby F. Thames, Auteur Année de publication : 1996 Article en page(s) : p. 67-73 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Agent mattant
Caoutchouc chloré
Réticulants
Revêtement poudre -- Additifs:Peinture poudre -- AdditifsTags : 'Peinture poudre' Adjuvant Caoutchouc Greffage Furane-2,5-dione(2,5-dihydro) Chloration Réticulant 'Agent matité' Index. décimale : 667.9 Revêtements et enduits Résumé : Grafting of maleic anhydride onto low molecular weight guayule rubber, followed by chlorination of the residual double bonds provides a powder reactive to alcohols, amines, and epoxides. The product, chlorinated-maleinized guayule rubber (CMGR), is a potential crosslinker/additive for powder coating formulations. Accordingly, polyester-hydroxyalkyl-amide and epoxy-polyester hybrid powder coating formulations were developed, applied, tested, and contrasted to properties of commercial powder coating formulations. The coatings featured reduced gloss, surface texturing, and physical property characteristics equal to or exceeding those derived from commercial powder coating formulations. Thus, CMGR is a promising reactive crosslinker for powder coatings. Note de contenu : - EXPERIMENTAL : Materials - Synthesis of anhydride functional chlorinated rubber (CMGR) - Characterization of CMGR - Formulation and processing of CMGR modified powder coatings - Characterization of powder coatings
- RESULTS AND DISCUSSION : Physical properties of CMGR - CMGR powder coatings - CMGR modified PHAA powder coatings - CMGR modified EPE hybrids - Thermal stability and corrosion resistancePermalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=18337
in JOURNAL OF COATINGS TECHNOLOGY (JCT) > Vol. 68, N° 857 (06/1996) . - p. 67-73[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 003516 - Périodique Bibliothèque principale Documentaires Disponible 003527 - Périodique Bibliothèque principale Documentaires Exclu du prêt Effect of acid value on the esterification mechanism of maleinized soybean oil with cotton / Ericka N. J. Ford in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 9, N° 5 (09/2012)
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Titre : Effect of acid value on the esterification mechanism of maleinized soybean oil with cotton Type de document : texte imprimé Auteurs : Ericka N. J. Ford, Auteur ; James W. Rawlins, Auteur ; Sharathkumar K. Mendon, Auteur ; Shelby F. Thames, Auteur Année de publication : 2012 Article en page(s) : p. 637-641 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Amides
Anhydrides
CelluloseLa 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.
CotonLe coton est une fibre végétale qui entoure les graines des cotonniers "véritables"(Gossypium sp.), un arbuste de la famille des Malvacées. Cette fibre est généralement transformée en fil qui est tissé pour fabriquer des tissus. Le coton est la plus importante des fibres naturelles produites dans le monde. Depuis le XIXe siècle, il constitue, grâce aux progrès de l'industrialisation et de l'agronomie, la première fibre textile du monde (près de la moitié de la consommation mondiale de fibres textiles).
Huile de soja
Spectrométrie infrarougeIndex. décimale : 677 Textiles Résumé : Aqueous solutions of maleinized soybean oil (MSO) were evaluated as formaldehyde-free reagents for cellulosic textiles. The reactivity of cotton cellulose with MSO reagents (having acid values of 156 and 230 mg KOH/g) neutralized with aqueous ammonia, in excess of functional groups, was studied using diffuse reflectance infrared Fourier transform spectroscopy. The acid value of aqueous ammonia-neutralized MSO influenced the formation of protonated amide intermediates. Cyclic anhydride and protonated amide functional groups were identified as reaction intermediates, which resulted in carboxylic ester linkages between MSO and cellulose upon elevated temperature curing. Note de contenu : - MSO solution baths
- FTIR spectroscopy
- Analysis of MSO spectraDOI : 10.1007/s11998-012-9420-z En ligne : https://link.springer.com/content/pdf/10.1007%2Fs11998-012-9420-z.pdf Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=16035
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Code-barres Cote Support Localisation Section Disponibilité 14190 - Périodique Bibliothèque principale Documentaires Disponible Hydroxylated guayule rubber in powder coatings / Amir Niroomand in JOURNAL OF COATINGS TECHNOLOGY (JCT), Vol. 68, N° 863 (12/1996)
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Titre : Hydroxylated guayule rubber in powder coatings Type de document : texte imprimé Auteurs : Amir Niroomand, Auteur ; Thomas P. Schuman, Auteur ; Shelby F. Thames, Auteur Année de publication : 1996 Article en page(s) : p. 15-20 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Caoutchouc
Guayule et constituants
Hydroxylation
Liants
Revêtements poudre:Peinture poudreIndex. décimale : 667.9 Revêtements et enduits Résumé : The synthesis, characterization, and application of hydroxylated low molecular weight guayule rubber as a powder coating component is described. In particular, our interest was in the generation of secondary alcohol moieties on a guayule rubber backbone, and its use as part of a novel and, as yet, unreported powder coating formulation. Hydroxylated guayule rubber was found to improve toughness, flexibility, and solvent resistance of powder coatings. Note de contenu : - EXPERIMENTAL : Materials - Analytical - Hydroboration of guayale rubber followed by oxidation - Powder coating preparation - Testing conditions
- RESULTS AND DISCUSSION : Incorporation into powder coatings - Rubber tougheningPermalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=18455
in JOURNAL OF COATINGS TECHNOLOGY (JCT) > Vol. 68, N° 863 (12/1996) . - p. 15-20[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 003521 - Périodique Bibliothèque principale Documentaires Disponible 003532 - Périodique Bibliothèque principale Documentaires Exclu du prêt A kinetic study of the reaction of epoxidized rubber and carboxylic acids / J. Kyle Copeland in JOURNAL OF COATINGS TECHNOLOGY (JCT), Vol. 66, N° 833 (06/1994)
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Titre : A kinetic study of the reaction of epoxidized rubber and carboxylic acids Type de document : texte imprimé Auteurs : J. Kyle Copeland, Auteur ; Shelby F. Thames, Auteur Année de publication : 1994 Article en page(s) : p. 59-62 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Acides carboxyliques
Caoutchouc
Cinétique chimique
Epoxydes
Réactions chimiques
Réticulants
Revêtements -- Additifs:Peinture -- AdditifsIndex. décimale : 667.9 Revêtements et enduits Résumé : The coatings industry has long been interested in non-toxic multifunctional crosslinking agents that do not emit volatile organic compounds (VOCs) during curing. Ring opening of epoxides is an ideal chemical reaction for there are no accompanying VOCs. Therefore, we have investigated the feasibility of a novel epoxide reagent as a multifunctional crosslinking agent. Specifically, epoxidized poly-cis-isoprene has been synthesized and evaluated as a reactant with a variety of carboxylic acids via isothermal differential scanning calorimetry. Accordingly, we have measured the reaction enthalpy at various temperatures and reactant concentrations. The change in heat flow with time is proportional to the change in the reactant concentration with time since ring opening of epoxides with carboxylic acids gives chain modification via ester formation.
We have also determined the reaction order and energy of activation. Three acids ranging in pKa from 1.26 to 4.95 were studied and provided activation energies ranging from 42.9 to 115.9 kJ/mol. The reaction order was determined to be first order in acid.Note de contenu : - EXPERIMENTAL : Materials - Preparation of epoxidized rubber - Preparation of DSC samples - DSC analysis
- RESULTS AND DISCUSSION : Reaction order - Energy of activation - Comparison of the acidsPermalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=18642
in JOURNAL OF COATINGS TECHNOLOGY (JCT) > Vol. 66, N° 833 (06/1994) . - p. 59-62[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 003467 - Périodique Bibliothèque principale Documentaires Disponible 003480 - Périodique Bibliothèque principale Documentaires Exclu du prêt Low and no-VOC architectural coatings containing ambient curing functional groups / Zhiyu Wang in JOURNAL OF COATINGS TECHNOLOGY (JCT), Vol. 68, N° 852 (01/1996)
PermalinkOptimisation de l'utilisation des silanes organiques dans les revêtements en poudre / Shelby F. Thames in EUROPEAN COATINGS JOURNAL (ECJ), N° 10/94 (10/1994)
PermalinkThermoplastic powder coatings : Correlating thermal history and performance / Shelby F. Thames in EUROPEAN COATINGS JOURNAL (ECJ), N° 10/95 (10/1995)
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