Thermal degradation of a reactive flame retardant based on cyclotriphosphazene and its blend with DGEBA epoxy resin

2009 ◽  
Vol 94 (11) ◽  
pp. 2101-2106 ◽  
Author(s):  
Mustapha El Gouri ◽  
Abderrahim El Bachiri ◽  
Salah Eddine Hegazi ◽  
Mohamed Rafik ◽  
Ahmed El Harfi
2014 ◽  
Vol 1053 ◽  
pp. 263-267 ◽  
Author(s):  
Xiu Juan Tian

Thermal stability and thermal degradation kinetics of epoxy resins with 2-(Diphenylphosphinyl)-1, 4-benzenediol were investegated by thermogravimetric analysis (TGA) at different heating rates of 5 K/min, 10 K/min, 20 K/min and 40 K/min. The thermal degradation kinetic mechanism and models of the modified epoxy resins were determined by Coast Redfern method.The results showed that epoxy resins modified with the flame retardant had more thermal stability than pure epoxy resin. The solid-state decomposition mechanism of epoxy resin and the modified epoxy resin corresponded to the controlled decelerating ځ˽̈́˰̵̳͂͆ͅ˼˰̴̱̾˰̸̵̈́˰̵̸̳̱̹̽̾̓̽˰̶̳̹̾̈́̿̾̓ͅ˰̶˸ځ˹˰̵̵͇͂˰̃˸́˽ځ˹2/3. The introduction of phosphorus-containing flame retardant reduced thermal degradation rate of epoxy resins in the primary stage, and promote the formation of carbon layer.


2020 ◽  
Vol 55 (27) ◽  
pp. 12836-12847 ◽  
Author(s):  
Zongmin Zhu ◽  
Panlong Lin ◽  
Hao Wang ◽  
Luoxin Wang ◽  
Bin Yu ◽  
...  

2020 ◽  
Vol 190 ◽  
pp. 107926 ◽  
Author(s):  
Jingkai Liu ◽  
Jinyue Dai ◽  
Shuaipeng Wang ◽  
Yunyan Peng ◽  
Lijun Cao ◽  
...  

2011 ◽  
Vol 197-198 ◽  
pp. 1167-1170
Author(s):  
Zhi Ping Wu ◽  
Yun Chu Hu ◽  
Mei Qin Chen

The effect of intumescent flame retardant (IFR) contained microencapsulated red phosphorus on the flame retardance of E-44 epoxy resin (EP) was studied. The test results indicated that good flame retardancy can be realized when epoxy resin treated with 30% IFR. Thermogravimetric analysis showed that the charring amount at high temperature of EP can increase substantially when IFR was incorporated. In order to further explain this phenomenon, Dolye integration method of thermal degradation dynamics was employed to study the thermal degradation process of EP treated with IFR based on the microencapsulated red phosphrous according to the thermal gravimetry analysis results.The activation energy and reactor order of different thermal degradation stages were obtained. The results of thermal degradation dynamics implied the intumescent flame retardants can improve the flame retardance of the epoxy resin through decrease the degradation speed and increase the activation energy of the second thermal degradation stage.


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