Synergistic Effect of Layer-by-Layer Assembled Thin Films Based on Clay and Carbon Nanotubes To Reduce the Flammability of Flexible Polyurethane Foam

2014 ◽  
Vol 53 (37) ◽  
pp. 14315-14321 ◽  
Author(s):  
Haifeng Pan ◽  
Ying Pan ◽  
Wei Wang ◽  
Lei Song ◽  
Yuan Hu ◽  
...  
Keyword(s):  
Thin Films ◽  
Carbon Nanotubes ◽  
Synergistic Effect ◽  
Polyurethane Foam ◽  
Layer By Layer ◽  
Flexible Polyurethane Foam ◽  
Flexible Polyurethane

scholarly journals Experimental and numerical perspective on the fire performance of MXene/Chitosan/Phytic acid coated flexible polyurethane foam

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Bo Lin ◽  
Anthony Chun Yin Yuen ◽  
Timothy Bo Yuan Chen ◽  
Bin Yu ◽  
Wei Yang ◽  
...  
Keyword(s):  
Phytic Acid ◽  
Polyurethane Foam ◽  
Flame Retardants ◽  
Layer By Layer ◽  
Aromatic Rings ◽  
Pyrolysis Model ◽  
Biomass Materials ◽  
Flexible Polyurethane Foam ◽  
Flexible Polyurethane ◽  
Phosphorous Compounds

AbstractRecent discoveries of two-dimensional transitional metal based materials have emerged as an excellent candidate for fabricating nanostructured flame-retardants. Herein, we report an eco-friendly flame-retardant for flexible polyurethane foam (PUF), which is synthesised by hybridising MXene (Ti$$_3\hbox {C}_2$$ 3 C 2 ) with biomass materials including phytic acid (PA), casein, pectin, and chitosan (CH). Results show that coating PUFs with 3 layers of CH/PA/Ti$$_3\hbox {C}_2$$ 3 C 2 via layer-by-layer approach reduces the peak heat release and total smoke release by 51.1% and 84.8%, respectively. These exceptional improvements exceed those achieved by a CH/Ti$$_3\hbox {C}_2$$ 3 C 2 coating. To further understand the fundamental flame and smoke reduction phenomena, a pyrolysis model with surface regression was developed to simulate the flame propagation and char layer. A genetic algorithm was utilised to determine optimum parameters describing the thermal degradation rate. The superior flame-retardancy of CH/PA/Ti$$_3\hbox {C}_2$$ 3 C 2 was originated from the shielding and charring effects of the hybrid MXene with biomass materials containing aromatic rings, phenolic and phosphorous compounds.

Layered double hydroxide-decorated flexible polyurethane foam: significantly improved toxic effluent elimination

RSC Advances ◽  
2015 ◽  
Vol 5 (118) ◽  
pp. 97458-97466 ◽  
Author(s):  
Lei Liu ◽  
Wei Wang ◽  
Yuan Hu
Keyword(s):  
Thermal Stability ◽  
Polyurethane Foam ◽  
Layered Double Hydroxide ◽  
Flame Retardancy ◽  
Smoke Suppression ◽  
Layer By Layer ◽  
Layer Method ◽  
Flexible Polyurethane Foam ◽  
Flexible Polyurethane ◽  
Double Hydroxide

A layered double hydroxide-based fire-blocking coating was deposited on the surface of a flexible polyurethane foam using a layer-by-layer method to improve its thermal stability, flame retardancy and smoke suppression properties.

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