Using TGA/FTIR TGA/MS and cone calorimetry to understand thermal degradation and flame retardancy mechanism of polycarbonate filled with solid bisphenol A bis(diphenyl phosphate) and montmorillonite

2012 ◽  
Vol 97 (4) ◽  
pp. 605-614 ◽  
Author(s):  
Jie Feng ◽  
Jianwei Hao ◽  
Jianxin Du ◽  
Rongjie Yang
Keyword(s):  
Thermal Degradation ◽  
Bisphenol A ◽  
Flame Retardancy ◽  
Cone Calorimetry ◽  
Diphenyl Phosphate ◽  
Flame Retardancy Mechanism

Flame Retardant Epoxy Resins Containing Bisaryl Diphosphates Oligomer

2012 ◽  
Vol 560-561 ◽  
pp. 569-573 ◽  
Author(s):  
Ming Gao ◽  
Chun Feng Sun
Keyword(s):  
Thermal Stability ◽  
Thermal Degradation ◽  
Bisphenol A ◽  
Cone Calorimeter ◽  
Epoxy Resins ◽  
Flame Retardants ◽  
Decomposition Temperature ◽  
Degradation Behavior ◽  
Initial Decomposition Temperature ◽  
Diphenyl Phosphate

Bisphenol A bis( diphenyl phosphate) oligomer (BDP) as flame retardants (FR) was synthesized, whose structure was characterized by IR. 30% weight BDP was doped into epoxy resins (EP) to get 26.2 % of LOI and UL 94 V-0. The degradation behavior of EP containing BDP was studied by TG, SEM and cone calorimeter. In the thermal degradation of EP containing BDP, the initial decomposition temperature, Tm and heat release and smoke production are decreased while Rmax, char yields, and inherent thermal stability are increased. Surface of the char is dense and compact, which can isolate the transfer of mass and heat between the materials and the flame to protect the unburned materials.

Influence of Zirconium Oxide on Thermal Degradation and Flame Retardancy of Viscose Fibers

2014 ◽  
Vol 884-885 ◽  
pp. 73-77
Author(s):  
Cui Cui Song ◽  
Quan Ji ◽  
Chun Xia Li ◽  
Feng Yu Quan ◽  
Yan Zhi Xia
Keyword(s):  
Thermogravimetric Analysis ◽  
Thermal Degradation ◽  
Heat Release ◽  
Flame Retardancy ◽  
Zirconium Oxide ◽  
Cellulose Fiber ◽  
Cone Calorimetry ◽  
Limiting Oxygen Index ◽  
Viscose Fibers ◽  
Spinning Combustion

We have investigated the effect of zirconium oxide on the thermal degradation and flame retardancy of viscose fibers. ZrO2/cellulose fiber was prepared by wet spinning. Combustion behaviour and flammability were assessed using the limiting oxygen index (LOI) and thermogravimetric analysis from ambient temperature to 800°C and cone calorimetry. LOI results showed that the ZrO2 increased the LOI of viscose fiber from 20% to 26%, which showed that ZrO2 particles had a positive effect on cellulose flame-retardancy. Results from thermogravimetric analysis (TG) indicated that the ZrO2/cellulose fibers produced greater quantities of residues than viscose fibers. The combustion residues were examined using the scanning electron microscopy, indicating that ZrO2/cellulose fiber produced consistent, thick residues. Cone calorimetry indicated that heat release rate and total heat release values of ZrO2/cellulose fiber were less than those of viscose fibers.

Simple green synthesis of solid polymeric bisphenol A bis(diphenyl phosphate) and its flame retardancy in epoxy resins

RSC Advances ◽  
2015 ◽  
Vol 5 (98) ◽  
pp. 80415-80423 ◽  
Author(s):  
Wei Zhao ◽  
Jiping Liu ◽  
Yi Zhang ◽  
Daming Ban
Keyword(s):  
Bisphenol A ◽  
Green Synthesis ◽  
Flame Retardancy ◽  
Epoxy Resins ◽  
Green Method ◽  
Diphenyl Phosphate

A simple and green method for the preparation of solid polymeric bisphenol A bis(diphenyl phosphate) (PBDP), aimed at improving the flame retardancy of epoxy resins (EP) is presented.

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