摘  要：采用熔融共混法制備高抗沖聚苯乙烯（HIPS）/磷酸鋯（OZrP）阻燃材料。利用熱重分析（TGA）研究其熱穩定性和成炭量。利用微燃燒量熱分析（MCC）和錐形量熱儀測試（CCT）測試其阻燃性能。結果表明：磷酸鹽的加入，使得阻燃體系的成炭量有所增加，并且HIPS的熱釋放速率（HRR）和熱釋放容量（HRC）均有降低，相比純HIPS，添加磷酸鹽的HIPS材料熱釋放速度（HRR）上升較慢，這一結論與MCC、TGA的結果一致。可以看出，層狀磷酸鋯的加入，可顯著改善HIPS基體的阻燃性能，降低其火災危險性。
關鍵詞：高抗沖聚苯乙烯；磷酸鋯；阻燃性能；微燃燒量熱分析；火災危險性
文獻標志碼：A       文章編號：1674-5124（2016）01-0141-04
Study on flame retardancy of halogen-free flame retardant high impact polystyrene
LI Hongtao1， ZHI Huibo1， WANG Tao1， WANG Biao1， WU Yiwen1， YANG Dandan2
（1. Technical Center for Industrial Product and Raw Material Inspection and Testing of SHCIQ，
Shanghai 200135，China；
2. School of Environmental and Materials Engineering，Shanghai Second Polytechnic University，
Shanghai 201209，China）
Abstract: High impact polystyrene （HIPS）/organophilic alpha-zirconium phosphate （OZrP） composites have been prepared through melting interaction. Thermogravimetric Analysis （TGA） has revealed that HIPS/OZrP composites have charred residues increased in quantity compared with pure HIPS. Micro-scale Combustion Calorimetric Analysis （MCC） has indicated that the heat release rate (HRR) and heat release capacity （HRC） of HIPS decrease remarkably after phosphate is added. The Cone Calorimeter Test （CCT） has shown that the HRR of HIPS/OZrP composites rises slowly compared with that of pure HIPS， as the phosphate has promoted the formation of charred residues. This conclusion is identical with the MCC and TGA results. All the experiments have demonstrated that the addition of layered zirconium phosphate can improve the flame retardancy of HIPS as largely as to prevent fire hazards.
Keywords: HIPS； OZrP； flame retardancy； micro-scale combustion calorimetric analysis； fire hazard