scholarly journals Application of calculus equation in solving thermal decomposition kinetics parameters of flame retardant flexible polyurethane foam

2016 ◽  
Author(s):  
Caiyun Sun ◽  
Genyin Cheng ◽  
Ming Gao
Keyword(s):  
Thermal Decomposition ◽  
Flame Retardant ◽  
Polyurethane Foam ◽  
Decomposition Kinetics ◽  
Thermal Decomposition Kinetics ◽  
Kinetics Parameters ◽  
Flexible Polyurethane Foam ◽  
Flexible Polyurethane

Application of Calculus Equation in Solving Thermal Decomposition Kinetics Parameters of Flame Retardant Wood

2014 ◽  
Vol 983 ◽  
pp. 190-193
Author(s):  
Cai Yun Sun ◽  
Yong Li Yang ◽  
Ming Gao
Keyword(s):  
Activation Energy ◽  
Thermal Decomposition ◽  
Thermal Degradation ◽  
Phosphoric Acid ◽  
Flame Retardant ◽  
Kinetic Parameters ◽  
Flame Retardancy ◽  
Decomposition Kinetics ◽  
Thermal Decomposition Kinetics ◽  
Kinetics Parameters

Wood has been treated with amino resins and amino resins modified with phosphoric acid to impart flame retardancy. The thermal degradation of samples has been studied by thermogravimetry (TG) in air. From the resulting data, kinetic parameters for different stages of thermal degradation are obtained following the method of Broido. For the decomposition of wood and flame retardant wood, the activation energy is found to decrease from 122 to 72 kJmol-1.

Application of Calculus Equation in Solving Thermal Decomposition Kinetics Parameters of Fire-Retardant Foam

2010 ◽  
Vol 152-153 ◽  
pp. 424-427
Author(s):  
Cai Yun Sun ◽  
Chun Huan Ren ◽  
Ming Gao
Keyword(s):  
Thermal Decomposition ◽  
Integral Method ◽  
Fire Retardant ◽  
Differential Method ◽  
Decomposition Kinetics ◽  
Kinetics Parameters ◽  
Good Reliability ◽  
Flexible Polyurethane Foam ◽  
Ozawa Integral Method ◽  
Flexible Polyurethane

The fire retardants were used in flexible polyurethane foam (PUF) to get fire retardant PUF, whose kinetic parameters activation energies (E) were calculated by Ozawa integral method and the Kissinger differential method. The results show that the correlation coefficient (R) is above 0.95, which shows good reliability of the two methods for solving E. E for the fire retardant foam is decreased by 80 kJ•mol-1, which shows that the fire retardant can catalyze decomposition and carbonization of flexible PUF.

Thermal Decomposition Kinetics of Flame Retardant Polybutylene Terephthalate Matrix Composites

2019 ◽  
Vol 956 ◽  
pp. 181-191
Author(s):  
Jian Lin Xu ◽  
Bing Xue Ma ◽  
Cheng Hu Kang ◽  
Cheng Cheng Xu ◽  
Zhou Chen ◽  
...  
Keyword(s):  
Activation Energy ◽  
Thermal Decomposition ◽  
Flame Retardant ◽  
Mass Loss Rate ◽  
Decomposition Reaction ◽  
Decomposition Kinetics ◽  
Thermal Decomposition Kinetics ◽  
Heating Rates ◽  
Polybutylene Terephthalate ◽  
Kinetics Of

The thermal decomposition kinetics of polybutylene terephthalate (PBT) and flame-retardant PBT (FR-PBT) were investigated by thermogravimetric analysis at various heating rates. The kinetic parameters were determined by using Kissinger, Flynn-Wall-Ozawa and Friedman methods. The y (α) and z (α) master plots were used to identify the thermal decomposition model. The results show that the rate of residual carbon of FR-PBT is higher than that of PBT and the maximum mass loss rate of FR-PBT is lower than that of PBT. The values of activation energy of PBT (208.71 kJ/mol) and FR-PBT (244.78 kJ/mol) calculated by Kissinger method were higher than those of PBT (PBT: 195.54 kJ/mol) and FR-PBT (FR-PBT: 196.00 kJ/mol) calculated by Flynn-Wall-Ozawa method and those of PBT and FR-PBT (PBT: 199.10 kJ/mol, FR-PBT: 206.03 kJ/mol) calculated by Friedman methods. There is a common thing that the values of activation energy of FR-PBT are higher than that of PBT in different methods. The thermal decomposition reaction models of the PBT and FR-PBT can be described by Avarami-Erofeyev model (A1).

Green flame-retardant flexible polyurethane foam based on cyclodextrin

2020 ◽  
Vol 178 ◽  
pp. 109171 ◽  
Author(s):  
Shi-Lin Zeng ◽  
Cheng-Yuan Xing ◽  
Li Chen ◽  
Long Xu ◽  
Bang-Jing Li ◽  
...  
Keyword(s):  
Flame Retardant ◽  
Polyurethane Foam ◽  
Flexible Polyurethane Foam ◽  
Flexible Polyurethane

Novel flame retardant flexible polyurethane foam: plasma induced graft-polymerization of phosphonates

RSC Advances ◽  
2015 ◽  
Vol 5 (78) ◽  
pp. 63853-63865 ◽  
Author(s):  
Maude Jimenez ◽  
Nicolas Lesaffre ◽  
Séverine Bellayer ◽  
Renaud Dupretz ◽  
Marianne Vandenbossche ◽  
...  
Keyword(s):  
Flame Retardant ◽  
Polyurethane Foam ◽  
Flame Retardancy ◽  
Graft Polymerization ◽  
Polyurethane Foams ◽  
Flexible Polyurethane Foam ◽  
Flexible Polyurethane

Flame retardancy of flexible polyurethane foams has become an issue due to very severe regulations.

A novel and effective method to fabricate flame retardant and smoke suppressed flexible polyurethane foam

RSC Advances ◽  
2015 ◽  
Vol 5 (83) ◽  
pp. 67878-67885 ◽  
Author(s):  
Ying Pan ◽  
Jing Zhan ◽  
Haifeng Pan ◽  
Wei Wang ◽  
Hua Ge ◽  
...  
Keyword(s):  
Flame Retardant ◽  
Polyurethane Foam ◽  
Magnesium Hydroxide ◽  
Smoke Production ◽  
Flexible Polyurethane Foam ◽  
Flexible Polyurethane

In the present work, magnesium hydroxide were successfully deposited on the surface of flexible polyurethane foam to suppress its flammability and smoke production.

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