Catalogue en ligne

Aller sur edunet

Accueil

Nouvelle recherche

Article: texte imprimé

Thermodynamics of deformation of latex blend coatings and its implications for tailoring their properties / N. Agarwal in JOURNAL OF COATINGS TECHNOLOGY (JCT), Vol. 71, N° 896 (09/1999)

[article]
inJOURNAL OF COATINGS TECHNOLOGY (JCT) > Vol. 71, N° 896 (09/1999) . - p. 61-72

Titre :	Thermodynamics of deformation of latex blend coatings and its implications for tailoring their properties
Type de document :	texte imprimé
Auteurs :	N. Agarwal, Auteur ; R. J. Farris, Auteur
Année de publication :	1999
Article en page(s) :	p. 61-72
Note générale :	Bibliogr.
Langues :	Américain (ame)
Catégories :	Calorimétrie Couches minces Déformations (mécanique) Essais dynamiques Latex Mélanges (chimie) Polyacryliques Revêtements -- Propriétés mécaniques:Peinture -- Propriétés mécaniques Revêtements en phase aqueuse:Peinture en phase aqueuse Thermodynamique Traction (mécanique)
Index. décimale :	667.9 Revêtements et enduits
Résumé :	Acrylic-based latex blend coatings, comprising a hard (Tg=45°C) and soft (Tg= -5°C) phases are evaluated in terms of the total energy they absorb before failure in a tensile test. Simultaneous measurement of the work and heat of deformation using a novel technique of differential gas pressure stretch calorimetry enables an estimate of change in their internal energy by application of the first law of thermodynamics. As the hard phase content of the blend is increased from 0-100%, its stiffness and tenacity increase, while the toughness (i.e., the energy to failure) undergoes a maximum at an intermediate composition. A partitioning of the mechanical work into heat and internal energy over the complete range of blend composition highlights the result that a simultaneous maximization of the heat dissipation and energy absorption is necessary to maximize blend toughness. This provides a new framework in which the properties of blend systems can be tailored in terms of their stiffness and toughness to design improved coatings.
Note de contenu :	- BACKGROUND : A brief historical perspective - Theory of operation - Calorimeter schematic - Calibrations - EXPERIMENTAL : Materials and sample preparation - Techniques - RESULTS AND DISCUSSION : Thermo-mechanical characterization - Stretch-calorimetry
Permalink :	https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=17928

Réservation

Réserver ce document

Exemplaires (1)

Code-barres	Cote	Support	Localisation	Section	Disponibilité
003564	-	Périodique	Bibliothèque principale	Documentaires	Disponible

A-
A
A+

Accueil

Se connecter

Mot de passe oublié ?

Adresse

ITECH - Bibliothèque

87, chemin des Mouilles
69134 ECULLY cedex

Tél : 04 72 18 07 95

contact