Effects of thermal-oxidative aging on the flammability and thermal-oxidative degradation kinetics of tris(tribromophenyl) cyanurate flame retardant PA6/LGF composites

2013 ◽  
Vol 98 (12) ◽  
pp. 2774-2783 ◽  
Author(s):  
Xiaoling Zuo ◽  
Huiju Shao ◽  
Daohai Zhang ◽  
Zhi Hao ◽  
Jianbing Guo
Keyword(s):  
Flame Retardant ◽  
Degradation Kinetics ◽  
Oxidative Degradation ◽  
Thermal Oxidative Degradation ◽  
Oxidative Aging ◽  
Thermal Oxidative Aging ◽  
Kinetics Of

Kinetics of thermal oxidative degradation of phosphorus-containing flame retardant copolyesters

2002 ◽  
Vol 76 (3) ◽  
pp. 401-409 ◽  
Author(s):  
Bo Wu ◽  
Yu-Zhong Wang ◽  
Xiu-Li Wang ◽  
Ke-Ke Yang ◽  
Yong-Dong Jin ◽  
...  
Keyword(s):  
Flame Retardant ◽  
Oxidative Degradation ◽  
Thermal Oxidative Degradation ◽  
Phosphorus Containing ◽  
Kinetics Of

Study on Aging Resistance Properties of Natural Rubber Dried by Microwave

2013 ◽  
Vol 706-708 ◽  
pp. 266-269
Author(s):  
Yong Zhou Wang ◽  
Fu Quan Zhang ◽  
Mao Fang Huang ◽  
Mei Chen ◽  
Hong Xing Gui ◽  
...  
Keyword(s):  
Natural Rubber ◽  
Oxidative Degradation ◽  
Rate Of Change ◽  
Thermal Oxidative Degradation ◽  
Oxidative Aging ◽  
Degradation Temperature ◽  
Hot Air ◽  
Aging Resistance ◽  
Before And After ◽  
Thermal Oxidative Aging

In this work, thermogravimetry (TG) and Wallace plastometer were used to study the thermal-oxidative aging resistance properties of natural rubber (NR) dried by microwave and hot-air. Showed from the results, thermal degradation temperature, primary thermal-oxidative degradation temperature, the value of P0, PRI and VR for NR dried by microwave were higher than those of NR dried by hot-air; the thermal-oxidative aging resistance properties of NR vulcanizes dried by microwave improved significantly, and the rate of change for elongation at break (-26.76%) and tensile strength (-38.6%) of NR vulcanizes dried by microwave before and after aging were apparently higher than those of NR vulcanizes dried by hot-air, which were (-60.29%) and (-82.11), respectively.

Migration Characteristics and Degradation Kinetics of Bisphenol A

2016 ◽  
Vol 850 ◽  
pp. 128-136
Author(s):  
Zhuo Jun Sun ◽  
Jian Gao ◽  
Hui Liu ◽  
Shu Zhen Pan ◽  
Shu Li Zhang ◽  
...  
Keyword(s):  
Thermal Decomposition ◽  
Bisphenol A ◽  
Aging Time ◽  
Degradation Kinetics ◽  
Heat Stability ◽  
Gas Chromatography Mass Spectrometry ◽  
Oxidative Aging ◽  
Before And After ◽  
Thermal Oxidative Aging ◽  
Kinetics Of

This paper study the migration characteristics and degradation kinetics of bisphenol A using TGA - gas chromatography - mass spectrometry and found that bisphenol A polycarbonate in the thermal oxidative aging conditions of 130 °C de-gradated to bisphenol A. At the range of 0 h to 120 h, the bisphenol A content of environmental hormones increased with time. When it reached 120 h, bisphenol A environmental hormone content decreased slightly with aging time. The content of bisphenol A reached 495mg/kg when the thermal oxidative aging time was 168 h, which was decreased compared to the content of 442mg/kg at 120 h. Polycarbonate thermal decomposition kinetics study showed that the thermal decomposition of polycarbonate can be divided into three phases. The first thermal decomposition occurred at the range of 415° C to 425 ° C, the polycarbonate end groups fracture of the second stage at 493.6°C , the main fracture of the main chain rearrangement and crosslinking, and the third stage at 598.7°C, the degradation of the chain continues to decompose and the decomposition of the crosslinked carbon precursor; thermal oxidation aging of polycarbonate decreased the heat stability and promote the thermal decomposition of polycarbonate. Comparing the oxidation induction period, thermal weight loss rate and activation energy of polycarbonate before and after thermal oxidative aging, it c found that the thermal stability of the hot oxygen aging of polycarbonate is reduced.

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