Controlled Emissivity Coatings to Delay Ignition of Polyethylene
AbstractSemi-opaque to opaque films containing small amounts of various aluminium particles to decrease emissivity were easily prepared and coated onto low-density polyethylene (LDPE) sheets. The thermal-radiative properties (reflectivity, transmissivity and absorptivity) of the films were measured and related to the aluminum particles’ content, size and nature. Time-to-ignition of samples was assessed using a cone calorimeter at different heat flux values (35, 50 and 75 kW/m2). The coatings allowed significant ignition delay and, in some cases, changed the material behaviour from thermally thin to thick behaviour. These effects are related both to their emissivity and transmissivity. A lower emissivity, which decreases during the degradation, and a lower transmissivity are the key points to ensure an optimal reaction-to-fire. View Full-Text
Share & Cite This Article
Sonnier, R.; Ferry, L.; Gallard, B.; Boudenne, A.; Lavaud, F. Controlled Emissivity Coatings to Delay Ignition of Polyethylene. Materials 2015, 8, 6935-6949.
Sonnier R, Ferry L, Gallard B, Boudenne A, Lavaud F. Controlled Emissivity Coatings to Delay Ignition of Polyethylene. Materials. 2015; 8(10):6935-6949.Chicago/Turabian Style
Sonnier, Rodolphe; Ferry, Laurent; Gallard, Benjamin; Boudenne, Abderrahim; Lavaud, François. 2015. "Controlled Emissivity Coatings to Delay Ignition of Polyethylene." Materials 8, no. 10: 6935-6949.