J. Zhan, L. Wang, N. N. Hong, W. Z. Hu, J. Wang, L. Song and Y. Hu (2014) Flame-retardant and Anti-dripping Properties of Intumescent Flame-retardant Polylactide with Different Synergists. Journal/Polymer-Plastics Technology And Engineering 53 387-394. [In English]
Web link: http://dx.doi.org/10.1080/03602559.2013.844826
Keywords: Anti-dripping property, Intumescent flame retardant, Polylactide, Synergist, THERMAL-DEGRADATION, RENEWABLE RESOURCES, POLY(LACTIC ACID), FUMED, SILICA, NANOCOMPOSITES, COMPOSITES, FLAMMABILITY, MECHANISM, BLENDS, MONTMORILLONITE

Abstract: The flame-retardant and anti-dripping properties of biodegradable polylactide (PLA) materials during the combustion process were improved using intumescent flame-retardant (IFR) and different synergists. Organophilic montmorillonite (OMT), zinc borate (ZB), fumed silica (FS), tetraethoxysilane (TEOS) and polytetrafluoroethylene (PTFE) were chosen as the anti-dripping synergists for IFR in flame-retardant PLA. The flammability properties and thermal stability of PLA composites were investigated with UL-94, limiting oxygen index (LOI), thermogravimetric analysis (TGA), melt flow index (MFI), etc. It is found that OMT and ZB are the best anti-dripping synergists for IFR PLA. The anti-dripping mechanisms of all the additives are discussed.