Thermal degradation behavior of the compound containing phosphaphenanthrene and phosphazene groups and its flame retardant mechanism on epoxy resin

Polymer ◽  
2011 ◽  
Vol 52 (24) ◽  
pp. 5486-5493 ◽  
Author(s):  
Lijun Qian ◽  
Longjian Ye ◽  
Yong Qiu ◽  
Shuren Qu
Keyword(s):  
Thermal Degradation ◽  
Flame Retardant ◽  
Epoxy Resin ◽  
Degradation Behavior ◽  
Thermal Degradation Behavior

scholarly journals Thermal Degradation Behavior of Epoxy Resin Containing Modified Carbon Nanotubes

Polymers ◽  
2021 ◽  
Vol 13 (19) ◽  
pp. 3332
Author(s):  
Xiaohui Bao ◽  
Fangyi Wu ◽  
Jiangbo Wang
Keyword(s):  
Carbon Nanotubes ◽  
Thermal Degradation ◽  
Heat Release ◽  
Flame Retardant ◽  
Epoxy Resin ◽  
Degradation Process ◽  
Degradation Behavior ◽  
Pure Epoxy ◽  
Thermal Degradation Behavior ◽  
Thermal Degradation Process

Via the surface-grafting of carbon nanotubes (CNTs) with a silicon-containing flame retardant (PMDA), a novel flame retardant CNTs-PMDA was synthesized. The flame retardancy was tested by cone calorimeter. Compared with pure epoxy resin, the total heat release (THR) and peak heat release rate (PHRR) of epoxy resin containing CNTs-PMDA were significantly reduced, by 44.6% and 24.6%, respectively. Furthermore, thermal degradation behavior of epoxy resin based composite was studied by the thermogravimetric analysis with differences in heating rates. The kinetic parameters of the thermal degradation for epoxy resin composites were evaluated by the Kissinger method and Flynn-Wall-Ozawa method. The results suggested that activation energy values of epoxy resin containing CNTs-PMDA in thermal degradation process were higher than those of pure epoxy resin in the final stage of the thermal degradation process, which was closely related to the final formation of char layer residues. Finally, the results from Dynamic mechanical thermal analysis (DMTA) and Scanning electron microscopy (SEM) measurements exhibited that the functionalization of CNTs with PMDA obviously improved the dispersion of CNTs in the epoxy resin matrix.

Thermal degradation behavior of a flame retardant melamine derivative hyperbranched polyimide with different terminal groups

RSC Advances ◽  
2015 ◽  
Vol 5 (112) ◽  
pp. 92664-92676 ◽  
Author(s):  
Muhammad Bisyrul Hafi Othman ◽  
Zulkifli Ahmad ◽  
Hasnah Osman ◽  
Mohd Firdaus Omar ◽  
Hazizan Md Akil
Keyword(s):  
Solid State ◽  
Thermal Degradation ◽  
Flame Retardant ◽  
Degradation Behavior ◽  
Degradation Behaviour ◽  
One Dimensional ◽  
Thermal Degradation Behavior ◽  
Isothermal Kinetic

The non-isothermal kinetic degradation behaviour of hyperbranched polyimide series containing s-triazine rings has been contributed by an effects of different terminal groups. The solid state mechanism proposed is one-dimensional diffusions.

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