Title :

Combining Low-Emissivity Thin Coating and 3D-Printed Original Designs for Superior Fire-Protective Performance

Author(s) :

Geoffroy, Laura [Auteur]
Unité Matériaux et Transformations - UMR 8207 [UMET]
Davesne, Anne-Lise [Auteur]
Unité Matériaux et Transformations - UMR 8207 [UMET]
Parent, Fabrice [Auteur]
Sanchette, Frédéric [Auteur]
Solarski, Fabienne [Auteur]
Unité Matériaux et Transformations - UMR 8207 [UMET]
Jimenez, Maude [Auteur]
Unité Matériaux et Transformations - UMR 8207 [UMET]
Bourbigot, Serge [Auteur]
Unité Matériaux et Transformations - UMR 8207 [UMET]

Journal title :

ACS Omega

Abbreviated title :

ACS Omega

Volume number :

5

Pages :

27857–27863

Publisher :

American Chemical Society (ACS)

Publication date :

2020-10-19

HAL domain(s) :

Chimie/Polymères
Chimie/Matériaux

English abstract : [en]

3D printing is a very flexible process to design various objects of original shapes. Previous works highlighted the elaboration of new multi-materials composed of an original sandwich structure made of ethylene vinyl acetate ...
Show more >3D printing is a very flexible process to design various objects of original shapes. Previous works highlighted the elaboration of new multi-materials composed of an original sandwich structure made of ethylene vinyl acetate copolymer containing 30 wt.-% of aluminum trihydroxide in which a hydrogel phase made of agar and vermiculite was incorporated. This original material revealed an extremely low heat release rate (with a reduction of 86% and 64% as regard peak of heat release rate and total of heat release, respectively, when compared to the same sample without hydrogel filling) during its heat exposure at 50 kW/m2 using mass loss cone calorimeter test. However, the time to ignition of this material was not improved. This work consequently focuses on delaying time to ignition of this hydrogel sandwich 3D printed multi-material. Solution consists in depositing by pulsed DC magnetron sputtering a low emissivity thin coating on the exposed skin surface. This coating reflects most of the infrared rays responsible for heat absorption, and thus delays the ignition of the underlying material. The thermal resistance performances of this coated sandwich 3D printed multi-material were evaluated, and a mechanism of action was proposed to explain the dramatic enhancement of the properties.Show less >

Language :

Anglais

Peer reviewed article :

Oui

Audience :

Internationale

European Project :

MULTI-CONCEPTUAL DESIGN OF FIRE BARRIER: A SYSTEMIC APPROACH

Administrative institution(s) :

Université de Lille
CNRS
INRA
ENSCL

Collections :

• Unité Matériaux et Transformations (UMET) - UMR 8207

Research team(s) :

Ingénierie des Systèmes Polymères

Submission date :

2020-10-27T06:51:07Z
2020-11-16T11:10:25Z
2020-11-16T11:11:16Z