Dépouillements

Design of polymeric dispersants for waterborne coatings / S. Creutz in JOURNAL OF COATINGS TECHNOLOGY (JCT), Vol. 70, N° 883 (08/1998)

[article]  inJOURNAL OF COATINGS TECHNOLOGY (JCT) > Vol. 70, N° 883 (08/1998) . - p. 41-46 Titre : Design of polymeric dispersants for waterborne coatings Type de document : texte imprimé Auteurs : S. Creutz, Auteur ; R. Jérôme, Auteur ; A. W. van der Werf, Auteur ; J. M. Akkerman, Auteur ; G. M. P. Kaptijn, Auteur Année de publication : 1998 Article en page(s) : p. 41-46 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Agents dispersants (chimie) Copolymères séquencés Pigments inorganiques Pigments organiques Polyméthacrylates Revêtements -- Additifs Revêtements en phase aqueuse:Peinture en phase aqueuse Index. décimale : 667.9 Revêtements et enduits Résumé : Block and random copolymers of ammonium methacrylate and dimethylaminoethyl methacrylate have been synthesized and tested as dispersants of various organic and inorganic pigments in formulations for waterborne paints. Blockiness of the co-monomer distribution is a prerequisite for good color characteristics in the final paint. It is however noteworthy that a tapered diblock (one-step anionic synthesis), a diblock copolymer with a regular change in composition from one block to the other one, has an interfacial activity quite comparable to the parent pure diblock copolymer (two-step anionic synthesis). The most interesting observation is that the poly(dimethylaminoethyl methacrylate) anchoring block can impart stability to dispersions of pigments as different as iron oxide, a blue Cu-phthalocyanine pigment, and a red organic pigment based on pyrrole in representative aqueous paint formulations. This type of diblock copolymer is promising for the design of universal dispersants. Note de contenu : - EXPERIMENTAL : Mill base - Masstone - White reduction - Characterization Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=18019 [article]

Réservation

Réserver ce document

Exemplaires (1)

Code-barres	Cote	Support	Localisation	Section	Disponibilité
003552	-	Périodique	Bibliothèque principale	Documentaires	Disponible

N, n-bis (2-hydroxyethyl) fatty amide as novel environmentally friendly crosslinking agent for acid functional acrylic copolymer resin / D. A. Raval in JOURNAL OF COATINGS TECHNOLOGY (JCT), Vol. 70, N° 883 (08/1998)

[article]  inJOURNAL OF COATINGS TECHNOLOGY (JCT) > Vol. 70, N° 883 (08/1998) . - p. 47-53 Titre : N, n-bis (2-hydroxyethyl) fatty amide as novel environmentally friendly crosslinking agent for acid functional acrylic copolymer resin Type de document : texte imprimé Auteurs : D. A. Raval, Auteur ; Vijay M. Mannari, Auteur ; Patel N. PULIN, Auteur Année de publication : 1998 Article en page(s) : p. 47-53 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Amides Copolymères Groupement carboxyle Haut extrait sec Huiles et graisses Polyacryliques Réticulants Réticulation (polymérisation) Revêtements -- Additifs Index. décimale : 667.9 Revêtements et enduits Résumé : N,N-bis (2-hydroxyethyl) fatty amide (HAFA) derived from dehydrated castor oil (DCO) has been employed as a curing agent for a carboxylic acid functional acrylic resin (AAR). Coating compositions with a varying AAR/HAFA ratio have been prepared and their various film properties have been studied and compared with the conventional butylated melamine formaldehyde (MF) based systems. The study reveals that HAFA can be used successfully as a crosslinking agent for AAR in baking systems. In addition to other technical advantages, the use of HAFA is environmentally friendly as no toxic volatiles are evolved during curing reaction, unlike in MF-cured systems. Note de contenu : - MATERIALS AND METHODS - EXPERIMENTAL : Synthesis of copolymer: (AAR) - Preparation of N, N-bis (2-hydroxyalkyl) DCO amide (HAFA) - COATING COMPOSITIONS - PREPARATION OF COATING COMPOSITION OF AAR AND HAFA - RESULTS AND DISCUSSION : Choice of β-hydroxyethyl fatty amide - Curing temperature - Differential scanning calorimetry (DSC) study - IR study - Film properties - CHEMICAL AND SOLVENT RESISTANCE PROPERTIES Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=18030 [article]

Réservation

Réserver ce document

Exemplaires (1)

Code-barres	Cote	Support	Localisation	Section	Disponibilité
003552	-	Périodique	Bibliothèque principale	Documentaires	Disponible

A novel anti-condensation coating / Guiseng Wang in JOURNAL OF COATINGS TECHNOLOGY (JCT), Vol. 70, N° 883 (08/1998)

[article]  inJOURNAL OF COATINGS TECHNOLOGY (JCT) > Vol. 70, N° 883 (08/1998) . - p. 55-59 Titre : A novel anti-condensation coating Type de document : texte imprimé Auteurs : Guiseng Wang, Auteur ; Daoyong Chen, Auteur ; Lude Lu, Auteur ; Xin Wang, Auteur Année de publication : 1998 Article en page(s) : p. 55-59 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Bateaux -- Habitacles Bateaux -- Revêtements:Bateaux -- Peinture Champignons microscopiques Condensation Formulation (Génie chimique) Humidité -- Absorption Revêtements Rosée Index. décimale : 667.9 Revêtements et enduits Résumé : A novel anti-condensation ship coating is discussed, and equipment designed for evaluating the performance of the coating quantitatively is described. An isobutylene-anhydride based copolymer was synthesized and used as a water-absorbing resin instead ofa starch-based water-absorbing resin currently used in the coatings. Expanded perlite was used as the heat insulation material. The optimum formulation was determined to be titanium dioxide powder 5.1 g (8.26%); perlite 12 g (19.44%); zeolite 13 g (21.06%); water-absorbing resin 3 g (4.86%); tributyl-phosphate 0.3 g (0.49%); emulsifier OP-10 0.3 g (0.49%); and styrene-acrylate copolymer emulsion 28 g (45.38%). Note de contenu : - EXPERIMENTAL : Material - Synthesis of water-absorbing resin - Preparation of anti-condensation coating - Determination of anti-condensation properties - RESULTS AND DISCUSSION : Binder - Filler - Water-absorbing resin - Heat insulation material - Mold inhibitor - Effect of coating thickness - Optimization of the formulation Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=18040 [article]

Réservation

Réserver ce document

Exemplaires (1)

Code-barres	Cote	Support	Localisation	Section	Disponibilité
003552	-	Périodique	Bibliothèque principale	Documentaires	Disponible