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Thermal and thermo-oxidative degradation of flame retardant high impact polystyrene with triphenyl phosphate and novolac epoxy resin

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Abstract

Thermal and thermo-oxidative decomposition and decomposition kinetics of flame retardant high impact polystyrene (HIPS) with triphenyl phosphate (TPP) and novolac type epoxy resin (NE) were characterized using thermo-gravimetric experiment. And the flammability was determined by limited oxygen indices (LOI). The LOI results show that TPP and NE had a good synthetic effect on the flame retardancy of HIPS. Compared with pure HIPS, the LOI values of HIPS/NE and HIPS/TPP only increased by about 5%, and the LOI value of HIPS/TPP/NE reached 42.3%, nearly 23% above that of HIPS. All materials showed one main decomposition step, as radical HIPS scission predominated during anaerobic decomposition. TPP increased the activity energy effectively while NE affected the thermal-oxidative degradation more with the help of the char formation. With both TPP and NE, the materials could have a comparable good result of both thermal and thermal-oxidative degradation, which could contribute to their effect on the flame retardancy.

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Authors and Affiliations

  1. College of Materials Science and Engineering, South China University of Technology, Guangzhou, 510641, China

    Li Huiyong  (李慧勇), Cai Changgeng, Chen Yukun & Jia Demin  (贾德民)

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  1. Li Huiyong  (李慧勇)
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  2. Cai Changgeng
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  3. Chen Yukun
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  4. Jia Demin  (贾德民)
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Correspondence to Jia Demin  (贾德民).

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Funded by Guang dong Province Natural Sciences Fundation(No.39672)

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Li, H., Cai, C., Chen, Y. et al. Thermal and thermo-oxidative degradation of flame retardant high impact polystyrene with triphenyl phosphate and novolac epoxy resin. J. Wuhan Univ. Technol. 22, 486–489 (2007). https://doi.org/10.1007/s11595-006-3486-3

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  • DOI: https://doi.org/10.1007/s11595-006-3486-3

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