A highly fire-retardant rigid polyurethane foam capable of fire-warning

2021 ◽  
pp. 101046
Author(s):  
Zhewen Ma ◽  
Jianzhong Zhang ◽  
Lei Liu ◽  
Hua Zheng ◽  
Jinfeng Dai ◽  
...  
2014 ◽  
Vol 1030-1032 ◽  
pp. 241-245 ◽  
Author(s):  
Yan Wei Li

In this paper, the effect of C3H6N6modified by imidazolium based Ionic Liquid 1-butyl-methylimidazolium hexafluorophosphate ([BMIM]PF6) on polyurethane rigid foam flame retardant properties was conducted.The results show that the flame retardant properties of C3H6N6 modified with Ionic Liquid significantly increased and the LOI increased form 22.3 to 24.5. In the modification process, the ionic liquid mass have a very noticeable effect to the flame retardant property and when [BMIM]PF6 and C3H6N6 in quality was 4:6, Fire-retardant effect was best.Compared with the prior to the modification, C3H6N6 modified can increase effective Flame resistance of materials, horizontal burning speed from 67.6mm/min down to 33.4mm/min.Thermal degradation data show that C3H6N6 modified could improve initial decomposition temperature and reminder yield of rigid polyurethane foam,and then heat release reduced, the decomposition controlled,thermal stability increased.


2014 ◽  
Vol 580-583 ◽  
pp. 2646-2648
Author(s):  
Jin Ping Wang

The developed rigid polyurethane foam is added several inorganic materials, which made the polyurethane foam release less poisonous gases in fire. The oxygen index value can reach more than 32 percent, and under the standard heating curve the retardant rigid polyurethane foam can present the performance of 1h fire resistance test.


Author(s):  
Menghe Zhu ◽  
Zhewen Ma ◽  
Lei Liu ◽  
Jianzhong Zhang ◽  
Siqi Huo ◽  
...  

2014 ◽  
Vol 39 (2) ◽  
pp. 127-138 ◽  
Author(s):  
Y. Zhou ◽  
H. H. Xiao ◽  
J. H. Sun ◽  
X. N. Zhang ◽  
W. G. Yan ◽  
...  

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