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Synthesis of a Novel Intumescent Flame Retardant Oligomer and its Application in ABS Copolymer

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Abstract:

A novel intumescent flame retardant oligomer containing phosphorous-nitrogen structure (PSPTR) was synthesized and characterized by Fourier Transform Infrared (FTIR) and Mass Spectrometry (MS). The thermal behavior of PSPTR was investigated by thermogravimetric analysis (TGA). The TGA data shows that PSPTR has a high initial temperature of thermal degradation and a high char residue of 41.18wt% at 700 . A novel intumescent flame retardant (IFR) system, which is composed of PSPTR and novolac phenol (NP), was used to impart flame retardancy of ABS. The combustion behaviors of the ABS/IFR composites were investigated by Limiting Oxygen Index (LOI) and UL-94 tests. When the content of IFR (PSPTR:NP=1:1 mass ratio) is 30 wt%, the LOI value of ABS/IFR reaches 28.2, and the vertical burning test reaches UL-94 V-1 rating.

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Periodical:

Advanced Materials Research (Volumes 391-392)

Pages:

204-208

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.391-392.204

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Online since:

December 2011

Authors:

Xiao Ping Hu, Yu Yang Guo, Quan Min Xu, Hui Min Heng, Liang Jun Li

Keywords:

ABS, Characterization, Intumescent Fame Retardant, Synthesis

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© 2012 Trans Tech Publications Ltd. All Rights Reserved

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