Thermal degradation behavior of rigid polyurethane foams prepared with different fire retardant concentrations and blowing agents

Polymer ◽  
2002 ◽  
Vol 43 (24) ◽  
pp. 6471-6479 ◽  
Author(s):  
Zhong Tang ◽  
M.Mercedes Maroto-Valer ◽  
John M Andrésen ◽  
John W Miller ◽  
Mark L Listemann ◽  
...  
Keyword(s):  
Thermal Degradation ◽  
Fire Retardant ◽  
Polyurethane Foams ◽  
Degradation Behavior ◽  
Rigid Polyurethane Foams ◽  
Blowing Agents ◽  
Thermal Degradation Behavior

Fire Retardant Cellulose Characterized by Thermal Degradation Behavior

2011 ◽  
Vol 197-198 ◽  
pp. 631-634
Author(s):  
Ming Gao ◽  
Yu Qing Yan
Keyword(s):  
Activation Energy ◽  
Thermal Analysis ◽  
Thermal Decomposition ◽  
Thermal Degradation ◽  
Oxygen Index ◽  
Fire Retardant ◽  
Decomposition Temperature ◽  
Degradation Behavior ◽  
Limiting Oxygen Index ◽  
Thermal Degradation Behavior

Cellulose treated with fire retardant was studied by thermogravimetry (TG), differential thermal analysis (DTA) and limiting oxygen index (LOI). The kinetic parameters for the thermal degradation are obtained following the method of Broido. For the fire retardant cellulose, the activation energy and decomposition temperature were much decreased while char yield and LOI were increased. The main thermal decomposition of the samples with higher LOI occurs at lower temperatures, while that with lower LOI occurs at higher temperatures.

scholarly journals Thermal degradation behavior and flammability of polyurethanes blended with poly(bispropoxyphosphazene)

1999 ◽  
Vol 66 (3) ◽  
pp. 307-315 ◽  
Author(s):  
Pin-Sheng Wang ◽  
Wen-Yen Chiu ◽  
Leo-Wang Chen ◽  
Bar-Long Denq ◽  
Trong-Ming Don ◽  
...  
Keyword(s):  
Thermal Degradation ◽  
Degradation Behavior ◽  
Thermal Degradation Behavior

Thermal degradation behavior of PLA composites containing bis DOPO phosphonates

2016 ◽  
Vol 639 ◽  
pp. 84-90 ◽  
Author(s):  
Qifeng Chang ◽  
Lijuan Long ◽  
Wentao He ◽  
Shuhao Qin ◽  
Jie Yu
Keyword(s):  
Thermal Degradation ◽  
Degradation Behavior ◽  
Thermal Degradation Behavior

scholarly journals Studies on Thermal Degradation Behavior of Siliceous Agriculture Waste (Rice Husk, Wheat Husk and Bagasse)

2015 ◽  
Vol 17 (3) ◽  
pp. 47-51 ◽  
Author(s):  
Syed H. Javed ◽  
Umair Aslam ◽  
Mohsin Kazmi ◽  
Masooma Rustam ◽  
Sheema Riaz ◽  
...  
Keyword(s):  
Thermal Degradation ◽  
Rice Husk ◽  
Acid Treatment ◽  
Proximate Analysis ◽  
Degradation Behavior ◽  
Agriculture Waste ◽  
Pure Silica ◽  
Thermal Degradation Behavior ◽  
Residual Weight ◽  
Wheat Husk

Abstract Various siliceous agriculture waste (SAW) such as rice husk, wheat husk and bagasse have been investigated to study their thermal degradation behavior using Thermogravimetric Analyzer (TGA) technique. The focus of this research is to conduct TGA of raw and acid treated (20% HCl & 1M H2SO4) SAW at heating rate 10°C/min in the atmosphere of nitrogen. The results were analyzed on the basis of thermograms and it was inferred that 24 hours soaking with 20% HCl prior to thermal degradation enhanced the percent weight loss. The process also improved the percentage of residual weight of SAW indicating the extraction of amorphous silica with increased purity. The effect of acid treatment was verified by determining chemical composition of SAW samples before and after soaking with 20% HCl. Proximate analysis, thermal degradation temperature ranges and percentage of residual weight at 800°C for each of rice husk, wheat husk and bagasse were also quantified to observe the thermal degradation behavior. XRF analysis was performed to observe the effect of acid treatment for extraction of pure silica.

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