scholarly journals Novel MoS2–DOPO Hybrid for Effective Enhancements on Flame Retardancy and Smoke Suppression of Flexible Polyurethane Foams

ACS Omega ◽  
2020 ◽  
Vol 5 (6) ◽  
pp. 2734-2746 ◽  
Author(s):  
Maoyong Zhi ◽  
Quanyi Liu ◽  
Yinlong Zhao ◽  
Shansong Gao ◽  
Zheng Zhang ◽  
...  
Keyword(s):  
Flame Retardancy ◽  
Polyurethane Foams ◽  
Smoke Suppression ◽  
Flexible Polyurethane

scholarly journals Flame retardancy and smoke suppression properties of flexible polyurethane foams containing an aluminum phosphate microcapsule

RSC Advances ◽  
2017 ◽  
Vol 7 (56) ◽  
pp. 35320-35329 ◽  
Author(s):  
Hong Liu ◽  
Bin Zhang ◽  
Jian Han
Keyword(s):  
Flame Retardancy ◽  
Aluminum Phosphate ◽  
Polyurethane Foams ◽  
Smoke Suppression ◽  
Flexible Polyurethane ◽  
Pu Foams

A novel aluminum phosphate (ALP) microcapsule was synthesized with the aim of enhancing the flame retardancy and smoke suppression properties of flexible polyurethane (PU) foams.

Effect of aluminum diethylphosphinate on the thermal stability and flame retardancy of flexible polyurethane foams

2019 ◽  
Vol 106 ◽  
pp. 72-79 ◽  
Author(s):  
Xin Wang ◽  
Ping Zhang ◽  
Zunchu Huang ◽  
Weiyi Xing ◽  
Lei Song ◽  
...  
Keyword(s):  
Thermal Stability ◽  
Flame Retardancy ◽  
Polyurethane Foams ◽  
Flexible Polyurethane

scholarly journals Some Key Factors Influencing the Flame Retardancy of EDA-DOPO Containing Flexible Polyurethane Foams

Polymers ◽  
2018 ◽  
Vol 10 (10) ◽  
pp. 1115 ◽  
Author(s):  
Agnieszka Przystas ◽  
Milijana Jovic ◽  
Khalifah Salmeia ◽  
Daniel Rentsch ◽  
Laurent Ferry ◽  
...  
Keyword(s):  
Flame Retardancy ◽  
High Speed ◽  
Combustion Efficiency ◽  
Polyurethane Foams ◽  
Key Factors ◽  
Ul 94 ◽  
Microscale Combustion Calorimeter ◽  
Flexible Polyurethane ◽  
Combustion Calorimeter ◽  
Pu Foams

The role of various additives (emulsifier, anti-dripping agent) and formulation procedures (pre-dispersion of solid additives in polyol via milling) which influence the flame retardancy of 6,6′-[ethan-1,2-diylbis(azandiyl)]bis(6H-dibenzo[c,e][1,2]oxaphosphin-6-oxid) (EDA-DOPO) containing flexible polyurethane foams has been investigated in this work. For comparison, the flame retardancy of two additional structurally-analogous bridged 9,10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide (DOPO)-based compounds, i.e., ethanolamine-DOPO (ETA-DOPO) and ethylene glycol-DOPO (EG-DOPO) were also evaluated together with EDA-DOPO in flexible PU foams of various formulations. The flame retardancy of these three bridged-DOPO compounds depends on the type of PU formulation. For certain PU formulations containing EDA-DOPO, lower fire performance was observed. Addition of emulsifier and polytetrafluoroethylene (PTFE) to these PU formulations influenced positively the flame retardancy of EDA-DOPO/PU foams. In addition, dispersion of EDA-DOPO and PTFE via milling in polyol improved the flame retardancy of the PU foams. Mechanistic studies performed using a microscale combustion calorimeter (MCC) and its coupling to FTIR showed no difference in the combustion efficiency of the bridged-DOPO compounds in PU foams. From MCC experiments it can be concluded that these bridged-DOPO compounds and their decomposition products may work primarily in the gas phase as flame inhibitors. The physiochemical behavior of additives in PU formulation responsible for the improvement in the flame retardancy of PU foams was further investigated by studying the dripping behavior of the PU foams in the UL 94 HB test. A high-speed camera was used to study the dripping behavior in the UL 94 HB test and results indicate a considerable reduction of the total number of melt drips and flaming drips for the flame retardant formulations. This reduction in melt drips and flaming drips during the UL 94 HB tests help PU foams achieve higher fire classification.

Novel flame retardant flexible polyurethane foam: plasma induced graft-polymerization of phosphonates

RSC Advances ◽  
2015 ◽  
Vol 5 (78) ◽  
pp. 63853-63865 ◽  
Author(s):  
Maude Jimenez ◽  
Nicolas Lesaffre ◽  
Séverine Bellayer ◽  
Renaud Dupretz ◽  
Marianne Vandenbossche ◽  
...  
Keyword(s):  
Flame Retardant ◽  
Polyurethane Foam ◽  
Flame Retardancy ◽  
Graft Polymerization ◽  
Polyurethane Foams ◽  
Flexible Polyurethane Foam ◽  
Flexible Polyurethane

Flame retardancy of flexible polyurethane foams has become an issue due to very severe regulations.

An investigation into the mechanism of flame retardancy and smoke suppression by melamine in flexible polyurethane foam

2002 ◽  
Vol 26 (4-5) ◽  
pp. 201-206 ◽  
Author(s):  
Dennis Price ◽  
Yan Liu ◽  
G. John Milnes ◽  
Richard Hull ◽  
Baljinder K. Kandola ◽  
...  
Keyword(s):  
Polyurethane Foam ◽  
Flame Retardancy ◽  
Smoke Suppression ◽  
Flexible Polyurethane Foam ◽  
Flexible Polyurethane
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