Determining the best flame retardant for rigid polyurethane foam—Tris(2‐chloroisopropyl) phosphate, expandable graphite, or silica aerogel

2021 ◽  
pp. 51888
Author(s):  
Ya Xuan Thong ◽  
Xiaodong Li ◽  
Xi Jiang Yin
Keyword(s):  
Flame Retardant ◽  
Polyurethane Foam ◽  
Silica Aerogel ◽  
Expandable Graphite ◽  
Rigid Polyurethane Foam

Dependence of flame-retardant properties on density of expandable graphite filled rigid polyurethane foam

2007 ◽  
Vol 104 (5) ◽  
pp. 3347-3355 ◽  
Author(s):  
Xiang-Cheng Bian ◽  
Jian-Hua Tang ◽  
Zhong-Ming Li ◽  
Zhong-Yuan Lu ◽  
Ai Lu
Keyword(s):  
Flame Retardant ◽  
Polyurethane Foam ◽  
Expandable Graphite ◽  
Rigid Polyurethane Foam ◽  
Flame Retardant Properties

scholarly journals Enhancing the Fire Safety and Smoke Safety of Bio–Based Rigid Polyurethane Foam via Inserting a Reactive Flame Retardant Containing P@N and Blending Silica Aerogel Powder

Polymers ◽  
2021 ◽  
Vol 13 (13) ◽  
pp. 2140
Author(s):  
Guangxu Bo ◽  
Xiaoling Xu ◽  
Xiaoke Tian ◽  
Jiao Wu ◽  
Yunjun Yan
Keyword(s):  
Flame Retardant ◽  
Polyurethane Foam ◽  
Silica Aerogel ◽  
Strength Properties ◽  
Polyurethane Foams ◽  
Insulation Material ◽  
Rigid Polyurethane Foam ◽  
Total Heat Release ◽  
Building Insulation ◽  
Reactive Flame Retardant

Rigid polyurethane foams (RPUFs) are widely used in many fields, but they are easy to burn and produce a lot of smoke, which seriously endangers the safety of people’s lives and property. In this study, tetraethyl(1,5–bis(bis(2–hydroxypropyl)amino)pentane–1,5–diyl)bis(phosphonate) (TBPBP), as a phosphorus–nitrogen–containing reactive–type flame retardant, was successfully synthesized and employed to enhance the flame retardancy of RPUFs, and silica aerogel (SA) powder was utilized to reduce harmful fumes. Castor oil–based rigid polyurethane foam containing SA powder and TBPBP was named RPUF–T45@SA20. Compared with neat RPUF, the obtained RPUF–T45@SA20 greatly improved with the compressive strength properties and the LOI value increased by 93.64% and 44.27%, respectively, and reached the V–0 rank of UL–94 testing. The total heat release (THR) and total smoke production (TSP) of RPUF–T45@SA20 were, respectively, reduced by 44.66% and 51.89% compared to those of the neat RPUF. A possible flame–retardant mechanism of RPUF–T45@SA20 was also proposed. This study suggested that RPUF incorporated with TBPBP and SA powder is a prosperous potential composite for fire and smoke safety as a building insulation material.

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