Characterization of organosilicon films synthesized by N2-PACVD. Application to fire retardant properties of coated polymers
| Autor: | Brigitte Mutel, René Delobel, Philippe Supiot, A. Quédé, O. Dessaux, charafeddine Jama |
|---|---|
| Rok vydání: | 2004 |
| Předmět: |
chemistry.chemical_classification
Nanocomposite Materials science Surfaces and Interfaces General Chemistry Polymer engineering.material Condensed Matter Physics Surfaces Coatings and Films Limiting oxygen index chemistry.chemical_compound chemistry Coating Polymerization Cone calorimeter Materials Chemistry engineering Composite material Organosilicon Fire retardant |
| Zdroj: | Surface and Coatings Technology. :265-270 |
| ISSN: | 0257-8972 |
| DOI: | 10.1016/j.surfcoat.2003.10.067 |
| Popis: | Organosilicon thin films, obtained from the polymerization of 1,1,3,3-tetramethyldisiloxane monomer pre-mixed with oxygen using a cold remote nitrogen plasma process, are used to improve flame retardant properties of polyamide-6 (PA-6) and polyamide-6 clay nanocomposite (PA-6 nano) substrates. A comparison between virgin PA-6 and coated PA-6 nano shows that the clay addition combined with the coating leads to an efficient fire retardant effect. The limiting oxygen index increases by 130% while, at the same time, the rate of heat release and the total heat evolved decrease by 41% and 33%, respectively. The nanocomposite structure leads to the formation of a silicon and carbonaceous protective layer during the combustion. This layer acts as a barrier limiting heat and mass transfers between the polymer and the flame, and this effect is reinforced by the coating. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full Text from ScienceDirect