Thermal Degradation Dynamic Model of Melamine Cyanurate Flame Retardant Nylon 66

被引：0

作者：

Luo D. ^{[1
]}

Fan J. ^{[2
]}

Huang H. ^{[1
]}

Liu Y. ^{[1
]}

机构：

[1] Polymer Research Institute of Sichuan University, State Key Laboratory of Polymer Materials Engineering, Chengdu

[2] Institute of Systems Engineering, Academy of Engineering Physics, Mianyang

来源：

Gaofenzi Cailiao Kexue Yu Gongcheng/Polymeric Materials Science and Engineering | 2019年 / 35卷 / 06期

关键词：

Flame retardant; Melamine cyanurate; Nylon; 66; Thermal degradation dynamic model;

D O I：

10.16865/j.cnki.1000-7555.2019.0177

中图分类号：

学科分类号：

摘要：

Based on analysis of the behaviors of thermal degradation and thermal release, two mathematic models including Kissinger and Horowitz-Metzger were adopted to investigate the degradation dynamic mechanism of melamine cyanurate (MCA) flame retardant nylon 66(PA66) and revealed the interaction processes between MCA and PA66 through the differential thermogravimetry (TG) and micro combustion calorimetry (MCC). The results indicate that despite of different degradation active energy values resulted from the above models, the obtained values of the flame-retardant systems show an obvious decrease compared with that of PA66. Due to the hydrogen bonds interaction between the decomposition products (triazine compounds) and PA66 chains, the electron density is correspondingly changed, thus leading to α and β- scission to generate oligomers with high flowability and volatiles with low molecular weight. Accordingly, MCA causes forward shift of the degradation temperature, and makes the MCA/PA66 system display the characteristics of two stage decomposition. © 2019, Editorial Board of Polymer Materials Science & Engineering. All right reserved.

引用

页码：35 / 39

页数：4

共 13 条

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