Synergistic effects of cerium phosphate and intumescent flame retardant on EPDM/PP composites |
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| Authors: | Zhihua Qiao Qilong Tai Lei Song Yuan Hu Pin Lv Ganxin Jie Wei Huang Yi Fu Deqing Zhang |
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| Institution: | 1. State Key Laboratory of Fire Science, University of Science and Technology of China, 96 Jinzhai Road, Hefei, Anhui 230026, PR China;2. Suzhou Institute for Advanced Study, University of Science and Technology of China, 166 Ren'ai Road, Suzhou, Jiangsu 215123, PR China;3. State Key Laboratory of Environmental Adaptability for Industrial Products, China National Electric Apparatus Research Institute, Guangzhou 510300, PR China;4. GuangDong Silver Age Sci & Tech Co., Ltd, JuQi Industrial Park, HuMen Town, DongGuan, Guangdong 523927, China |
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| Abstract: | An intumescent flame retardant system composed of ammonium polyphosphate (APP) and pentaerythritol (PER) was used for flame retarding ethylene–propylene–diene‐modified elastomer (EPDM)/polypropylene (PP) blends. Cerium phosphate (CeP) was synthesized and the effect on flame retardancy and thermal stability of EPDM/PP composites based on intumescent flame retardant (IFR) were studied by limiting oxygen index (LOI), UL‐94, and thermogravimetic analysis (TGA), respectively. Scanning electron microscopy (SEM) and Fourier transform infrared spectrometry (FTIR) were used to analyze the morphological structure and the component of the residue chars formed from the EPDM/PP composites, and the mechanical properties of the materials were also studied. The addition of CeP to the EPDM/PP/APP/PER composites gives better flame retardancy than that of EPDM/PP/APP/PER composites. TGA and RT‐FTIR studies indicated that an interaction occurs among APP, PER, and EPDM/PP. The incorporation of CeP improved the mechanical properties of the materials. Copyright © 2010 John Wiley & Sons, Ltd. |
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| Keywords: | intumescent flame retardant EPDM/PP cerium phosphate ammonium polyphosphate pentaerythritol |
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