General Considerations on the Use of Fillers and Nanocomposites. An Introduction to the Use of Fillers and Nanocomposites in Fire Retardancy

2007 ◽  
pp. 1-14
Keyword(s):  
Fire Retardancy ◽  
In Fire

scholarly journals Fire retardancy effect of aluminium phosphinate and melamine polyphosphate in glass fibre reinforced polyamide 6

e-Polymers ◽  
2010 ◽  
Vol 10 (1) ◽  
Author(s):  
Ulrike Braun ◽  
Horst Bahr ◽  
Bernhard Schartel
Keyword(s):  
Gas Phase ◽  
Glass Fibre ◽  
Phosphinic Acid ◽  
Polyamide 6 ◽  
Fire Retardancy ◽  
Fire Behaviour ◽  
Aluminium Phosphate ◽  
Flame Inhibition ◽  
Glass Fibre Reinforced ◽  
In Fire

AbstractThe fire retardancy mechanism of aluminium diethyl phosphinate (AlPi) and AlPi in combination with melamine polyphosphate (MPP) was investigated in glass-fibre reinforced polyamide 6 (PA6/GF) by analysing the pyrolysis, flammability and fire behaviour. AlPi in PA6/GF-AlPi partly vaporises as AlPi and partly decomposes to volatile diethylphosphinic acid (subsequently called phosphinic acid) and aluminium phosphate residue. In fire a predominant gasphase action was observed, but the material did not reach a V-0 classification for the moderate additive content used. For the combination of both AlPi and MPP in PA6/GF-AlPi-MPP a synergistic effect occurred, because of the reaction of MPP with AlPi. Aluminium phosphate is formed in the residue and melamine and phosphinic acid are released in the gas phase. The aluminium phosphate acts as a barrier for fuel and heat transport, whereas the melamine release results in fuel dilution and the phosphinic acid formation in flame inhibition. The higher amount of aluminium phosphate in PA6/GF-AlPi-MPP stabilised the residue in flammability tests in comparison to PA6/GF-AlPi, so that this material achieved a V-0 classification in the UL 94 test.

Recent developments in fire retardancy of polybutylene succinate

2021 ◽  
Vol 183 ◽  
pp. 109466
Author(s):  
Fei Xiao ◽  
Gaëlle Fontaine ◽  
Serge Bourbigot
Keyword(s):  
Fire Retardancy ◽  
Recent Developments ◽  
Polybutylene Succinate ◽  
In Fire

scholarly journals The Utility of Nanocomposites in Fire Retardancy

Materials ◽  
2010 ◽  
Vol 3 (9) ◽  
pp. 4580-4606 ◽  
Author(s):  
Linjiang Wang ◽  
Xuejun He ◽  
Charles A. Wilkie
Keyword(s):  
Fire Retardancy ◽  
In Fire

Fire Performance of Nylon Nanocomposites Fabricated by Melt Intercalation

2007 ◽  
Vol 334-335 ◽  
pp. 737-740
Author(s):  
Russel J. Varley ◽  
Andrew M. Groth ◽  
Kok Hoong Leong
Keyword(s):  
Heat Release ◽  
Heat Release Rate ◽  
Release Rate ◽  
Fire Performance ◽  
Fire Retardancy ◽  
Cone Calorimetry ◽  
Char Layer ◽  
Transmission Electron ◽  
Peak Heat Release Rate ◽  
In Fire

This paper presents results of a study carried out to evaluate the effects of an organomodified nanoclay, either on its own or in combination with a polyimide, upon the fire performance of a commercially available nylon. The fire performance, as determined using cone calorimetry showed that up to 40% improvement in the peak heat release rate could be achieved at addition levels of only around 5wt% of nanoclay. The level of improvement was shown to be strongly dependent upon nanoscale dispersion with a more highly exfoliated morphology, as determined using transmission electron microscopy, which showed a greater reduction in the peak heat release rate compared to a more ordered intercalated structure. Investigation of the mechanism of fire retardancy showed that the reduction in the heat release rate is due to the nanoclay reinforcing the char layer which prevented combustible products from entering in to the gaseous phase. Generally, though, the time to ignition is unaffected by nanoclay additions. The addition of the polyimide to the nanoclay reinforced nylon was inconclusive showing little evidence of further improvements in fire performance.

Intumescence in fire retardancy of lignocellulosic panels

2003 ◽  
Vol 82 (2) ◽  
pp. 373-377 ◽  
Author(s):  
Ondrej Grexa ◽  
Franck Poutch ◽  
Desana Manikova ◽  
Helena Martvonova ◽  
Andrea Bartekova
Keyword(s):  
Fire Retardancy ◽  
In Fire

Adventures in fire retardancy

1999 ◽  
Vol 5 (4) ◽  
pp. 172-185 ◽  
Author(s):  
Charles A. Wilkie
Keyword(s):  
Fire Retardancy ◽  
In Fire
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