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浜斻€乸c/abs fr2010 PC/ABS 鍚堥噾娴佸嫊鎬ф敼鍠勭殑鐮旂┒锛�
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鍏�銆�pc/abs fr2010 鑱氱７閰搁叝闃荤噧鍔戝皪PC/ABS鍚堥噾闃荤噧鎬ц兘褰遍熆锛�
Influence of polyphosphate flame retardant on PC/ABS alloy
GOU Jia,SHEN Huiying,CHEN Chao,QIN Wei,GONG Wei,BAN Daming
(School of Chemistry and Materials Science,Guizhou Normal University,Guiyang 550001,China)
Abstract:A novel flame retardant,poly(2-10-hydrogen-9-oxa-phosphaphenanthrene hydroquinone phenyl phosphate)(POPP),was incorporated to PC/ABS to improve the flame retardancy of PC/ABS.Flame retardant properties of PC/ABS were investigated by limited oxygen index test,vertical combustion test,thermal gravimetric analysis test,cone calorimetric test and scanning electron microscopy test.The results showed that the addition of 15% POPP to PC/ABS could achieve UL-94V-0grade with LOI value of 21.1%.The cone test showed that peak of heat release rate and total heat release decreased by 41.7%and 31.1%,respectively.TGA and SEM analysis demonstrated that the modified PC/ABS alloy exhibited better char bing effect,which promoted the bation of dense porous carbon layer on the surface after combustion,and effectively insulated the oxygen to improve the flame retardant properties of the material.
Key words:PC/ABS;modification;flame retardancy;polyphosphate
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