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Flame retardancy and its mechanism of polymers flame retarded by DBDPE/Sb2O3

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【作者】 左建东； 李荣勋； 冯绍华； 刘光烨； 赵建青；

【Author】 ZUO Jian-dong1, LI Rong-xun2, FENG Shao-hua2, LIU Guang-ye2, ZHAO Jian-qing1 (1. College of Materials Science and Engineering, South China University of Technology, Guangzhou 510640, China; 2. Key Laboratory of New Materials of Qingdao, Qingdao University of Science and Technology, Qingdao 266042, China)

【机构】 College of Materials Science and Engineering South China University of Technology； Key Laboratory of New Materials of Qingdao Qingdao University of Science and Technology； College of Materials Science and Engineering South China University of Technology； Guangzhou 510640 China； Qingdao 266042 China； Qingdao 266042 China；

【摘要】 The flammability characterization and thermal composition of polymers flame retarded by decabromodiphenylethane (DBDPE) and antimony trioxide (Sb2O3) were studied by cone calorimeter and thermogravimetry (TG). The results show that ABS/DBDPE/Sb2O3 has the similar flammability parameters and thermal composition curves to ABS/DBDPO/Sb2O3. It suggests that DBDPE/Sb2O3 has the similar flame retardant behavior to DBDPO/Sb2O3. The heat release rate (HRR) and the effect heat combustion (EHC) curves of polymers flame retarded by DBDPE/Sb2O3 all decrease, but the mass loss rate (MLR) curve slightly increase. It shows that the decrease of HRR is not due to the increase of char formation ratio but the generation of incombustible gases. The major flame retardant mechanism of DBDPE/Sb2O3 is gas phase flame retardant mechanism. Increasing content of Sb2O3 in DBDPE/Sb2O3 can improve the flame retardant property and thermal stability of acrylonitrile butadiene styrene. Sb2O3 has a good synergistic effect with DBDPE.

【Abstract】 The flammability characterization and thermal composition of polymers flame retarded by decabromodiphenylethane (DBDPE) and antimony trioxide (Sb2O3) were studied by cone calorimeter and thermogravimetry (TG). The results show that ABS/DBDPE/Sb2O3 has the similar flammability parameters and thermal composition curves to ABS/DBDPO/Sb2O3. It suggests that DBDPE/Sb2O3 has the similar flame retardant behavior to DBDPO/Sb2O3. The heat release rate (HRR) and the effect heat combustion (EHC) curves of polymers flame retarded by DBDPE/Sb2O3 all decrease, but the mass loss rate (MLR) curve slightly increase. It shows that the decrease of HRR is not due to the increase of char formation ratio but the generation of incombustible gases. The major flame retardant mechanism of DBDPE/Sb2O3 is gas phase flame retardant mechanism. Increasing content of Sb2O3 in DBDPE/Sb2O3 can improve the flame retardant property and thermal stability of acrylonitrile butadiene styrene. Sb2O3 has a good synergistic effect with DBDPE.

【关键词】 decabromodiphenylethan (DBDPE)； thermogravimetry； gas phase flame retarding；
【Key words】 decabromodiphenylethan (DBDPE)； thermogravimetry； gas phase flame retarding；
【基金】 Project(20574020) supported by the National Natural Science Foundation of China
  • 【文献出处】 Journal of Central South University of Technology ,中南工业大学学报(英文版) , 编辑部邮箱 ,2008年01期
  • 【分类号】O631
  • 【被引频次】20
  • 【下载频次】132
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