Title :

Self-stratifying epoxy/silicone coatings

Author(s) :

Beaugendre, A [Auteur]
Unité Matériaux et Transformations - UMR 8207 [UMET]
Degoutin, Stephanie [Auteur]
Unité Matériaux et Transformations - UMR 8207 [UMET]
Bellayer, Séverine [Auteur]
Unité Matériaux et Transformations - UMR 8207 [UMET]
Pierlot, Christel [Auteur]
Unité de Catalyse et Chimie du Solide - UMR 8181 [UCCS]
Duquesne, Sophie [Auteur]
Unité Matériaux et Transformations - UMR 8207 [UMET]
Casetta, Mathilde [Auteur]
Unité Matériaux et Transformations - UMR 8207 [UMET]
Jimenez, Maude [Auteur]
Unité Matériaux et Transformations - UMR 8207 [UMET]

Journal title :

Progress in Organic Coatings

Volume number :

103

Pages :

101-110

Publication date :

2017-02

HAL domain(s) :

Sciences de l'ingénieur [physics]/Matériaux
Sciences de l'ingénieur [physics]/Génie des procédés
Chimie/Matériaux
Chimie/Polymères

English abstract : [en]

The self-stratification is an eco-efficient process since it reduces solvent emission, time of implementation and labor cost. Moreover it could lead to the development of a large range of new products for extensive application ...
Show more >The self-stratification is an eco-efficient process since it reduces solvent emission, time of implementation and labor cost. Moreover it could lead to the development of a large range of new products for extensive application fields. For self-stratification to occur, liquid coatings must contain at least two incompatible resins, giving rise in “one pot” to a two-phases mixture after the formation of the solid film. In this work, an innovative self-stratifying coating, based on an epoxy/silicone blend, has been developed and applied on a plastic substrate (Polycarbonate). The perfect self-stratification of this system was evidenced by microscopic analysis coupled with X-ray mappings. The influence of solvents and a curing agent on the stratification process has been investigated. It is shown that the system diluted in butylacetate:xylene (at a 1:1 ratio) leads to the best stratification pattern, with the silicone phase located on the top of the coating. Three pigments (red iron oxide, calcium carbonate and zinc phosphate) were also incorporated in this epoxy/silicone system. They do not affect stratification, whereas visual appearance and adhesion are strongly dependent on the phase in which pigments are dispersed, as well as on the solvent used.Show less >

Language :

Anglais

Audience :

Internationale

Popular science :

Non

Administrative institution(s) :

Université de Lille
ENSCL
CNRS
INRA

Collections :

• Unité de Catalyse et Chimie du Solide (UCCS) - UMR 8181
• Unité Matériaux et Transformations (UMET) - UMR 8207

Research team(s) :

Ingénierie des Systèmes Polymères

Submission date :

2019-05-16T17:20:03Z
2021-06-21T11:28:41Z
2024-09-10T14:16:50Z