Flame‐retardant polycarbonate/acrylonitrile‐butadiene‐styrene based on red phosphorus encapsulated by polysiloxane: Flame retardance,thermal stability,and water resistance |
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| Authors: | Rong‐Kun Jian Li Chen Zhi Hu Yu‐Zhong Wang |
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| Affiliation: | Center for Degradable and Flame‐Retardant Polymeric Materials, College of Chemistry, State Key Laboratory of Polymer Materials Engineering, National Engineering Laboratory of Eco‐Friendly Polymeric Materials (Sichuan), Sichuan University, Chengdu 610064, China |
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| Abstract: | Red phosphorus encapsulated by polysiloxane (MRP) was prepared, and the chemical structure and morphology of MRP were characterized by FTIR and TEM, respectively. A series of flame retardant polycarbonate/acrylonitrile‐butadiene‐styrene containing MRP (PC/ABS/MRP) were prepared via melt‐blending. The flame retardance of PC/ABS/MRP was investigated by limiting oxygen index (LOI) and UL‐94 test. It was shown that the LOI value was increased to 27.7 and UL‐94 achieved a V‐0 rating at a 15 wt % loading of MRP. Cone calorimetric results showed that the peak of heat release rate (PHRR) of PC/ABS/15% MRP decreased from 452.7 to 198.0 kW/m2, and the total heat release decreased from 92.9 to 60.7 MJ/m2 compared with virgin PC/ABS. Thermal stability analysis showed that the char yield of the PC/ABS/15% MRP increased from 0 to 16.1 wt % under air atmosphere, and from 15.2 to 27.4 wt % under nitrogen atmosphere compared to virgin PC/ABS, respectively. The sample PC/ABS/15% MRP also showed excellent water resistance of flame retardance in 70°C water for 168 h. © 2011 Wiley Periodicals, Inc. J Appl Polym Sci, 2012 |
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| Keywords: | PC/ABS encapsulation flame retardance thermal stability water‐resistant |
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