The mechanism study on the cooperative flame resistance effect between HMP and NP in ABS by TG-FTIR

作者：Yang, Zhiyi; Gu, Zhanyong; Yang, Xiushan; Zhang, Zhiye; Wang, Xinlong; Chen, Xiaodong; Yang, Lin^*

来源：Journal of Thermal Analysis and Calorimetry, 2017, 129(1): 303-314.

DOI：10.1007/s10973-017-6111-0

• TG-FTIR
• Mechanism
• Cooperative flame

Thermogravimetry (TG) coupled with Fourier transform infrared spectroscopy (FTIR) (TG-FTIR) is an effective tool on studying the mechanism of the flame retardant. The mechanism on the cooperative effect between hydroquinone bis(di-2-methylphenyl phosphate) (HMP), which is an effective flame retardant, and novolac phenol (NP) in acrylonitrile-butadiene-styrene (ABS) is investigated by TG-FTIR under air in this study. The TG-FTIR of ABS/HMP, ABS/HMP/NP and ABS/NP are discussed carefully as well as their semi-quantitative analyses. The semi-quantitative analysis results of TG-FTIR show that ABS/HMP, ABS/HMP/NP and ABS/NP decompose in a two-step process. The first step is mainly the process of thermal degradation, macromolecules being decomposed into micromolecules containing many functional groups such as C-Ar-H, -CH2-, -OH, P-O-C-Ar. The second step is mainly the process of combustion, the layer of carbon being further oxidized into carbon dioxide, water and alkyne. The residue of ABS/HMP/NP is the highest as well as its temperature at which the maximum of mass loss rate occurs. Furthermore, the comparison of their semi-quantitative analyses indicates that NP could absorb parts of micromolecules containing the functional groups of -OH, CH2- and C-Ar-H, contributing to the formation of carbon layer, and HMP slows down the degradation of the carbon layer, achieving the cooperative effect.

• 出版日期2017-7
• 单位四川大学