Flame-retardant Polyamide 11 and 12 Nanocomposites: Thermal and Flammability Properties
- 11 June 2009
- journal article
- research article
- Published by SAGE Publications in Journal of Composite Materials
- Vol. 43 (17), 1803-1818
- https://doi.org/10.1177/0021998309338413
Abstract
Polyamide (nylon) 11 (PA11) and 12 (PA12) were melt-blended, dispersing low concentrations of nanoparticles, namely nanoclays (NCs), carbon nanofibers (CNFs), and nanosilicas (NSs) via twin-screw extrusion. To enhance their thermal and flame-retardant (FR) properties, an intumescent FR additive was added to the mechanically superior NC and CNF PA11 formulations. For neat and nanoparticle-reinforced PA11 and PA12, as well as for PA11 reinforced by both intumescent FR and select nanoparticles (NC or CNF), decomposition and heat deflection temperatures were measured, as were the peak heat release rates while burning the composites. All PA11 polymer systems infused with both nanoparticles and FR additive had higher decomposition temperatures than those infused with solely FR additive. For the PA11/FR/NC polymer blends, only the 20 wt% FR and 7.5 wt% clay formulation passed the UL 94 V-0 requirement, while all PA11/FR/ CNF formulations passed UL 94 V-0 requirement.Keywords
This publication has 24 references indexed in Scilit:
- Morphology and melt rheology of nylon 11/clay nanocompositesJournal of Applied Polymer Science, 2006
- Synthesis, rheology, and morphology of nylon‐11/layered silicate nanocompositeJournal of Polymer Science Part B: Polymer Physics, 2006
- Flammability properties of polymer nanocomposites with single-walled carbon nanotubes: effects of nanotube dispersion and concentrationPolymer, 2005
- Structure and Properties of Nanocomposites Based on Nylon-11 and -12 Compared with Those Based on Nylon-6Macromolecules, 2004
- Commercial Flame Retardancy of PolyurethanesJournal of Fire Sciences, 2004
- Preparation and characterization of nylon 11/organoclay nanocompositesPolymer, 2003
- Fire Properties of Polystyrene−Clay NanocompositesChemistry of Materials, 2001
- Thermal properties of automotive polymers III—Thermal characteristics and flammability of fire retardant polymersMaterials Research Innovations, 2001
- Flammability and thermal stability studies of polymer layered-silicate (clay) nanocompositesApplied Clay Science, 1999
- Polymer Layered Silicate NanocompositesAdvanced Materials, 1996