耐高温尼龙PA6T-66的阻燃改性研究  

Study on Flame Retardant Modification of HighTemperature Resistant Nylon PA6T-66

作　　者：段小超 常飞 褚照哲 郭孝乐 郑天成 Duan Xiaochao;Chang Fei;Chu Zhaozhe;Guo Xiaole;Zheng Tiancheng(Shanghai Sinochem Technology Co.,Ltd.,Shanghai,200120)

机构地区：[1]上海中化科技有限公司,上海200120

出　　处：《现代塑料加工应用》2024年第1期27-30,共4页Modern Plastics Processing and Applications

摘　　要：探究了二乙基次磷酸铝(OP1230)和二氧化硅(SiO2)复配使用对聚对苯二甲酰己二胺/己二酰己二胺(PA6T-66)树脂的阻燃协效作用。结果表明:OP1230的加入可显著提高材料的极限氧指数(LOI),当OP1230质量分数为6.0%时,材料的LOI从21.8%(未添加OP1230)提高至28.7%,且UL-94阻燃测试达到了V-2级。在此基础上,通过复配SiO2进一步提高材料阻燃性能。当SiO2质量分数为3.0%时,材料的LOI提高至29.4%,UL-94阻燃测试达到了V-0级。热氧降解和锥形量热数据也进一步证明OP1230和SiO2在PA6T-66阻燃体系中存在协效作用。The flame retardant synergistic effect of the combination of diethyl aluminum hypophosphate(OP1230)and silica(SiO 2)on poly(p-phenylenediamine)/adipic anhydride(PA6T-66)resin was explored.The results show that the addition of OP1230 can significantly improve the limit oxygen index(LOI)of the material.When the mass fraction of OP1230 is 6.0%,LOI of the material increases from 21.8%(OP1230 not added)to 28.7%,and the UL-94 flame retardant test reaches V-2 level.On this basis,the flame retardant performance of the material is further improved by compounding SiO 2.When the mass fraction of SiO 2 is 3.0%,LOI of the material increases to 29.4%,and the UL-94 flame retardant test reaches V-0 level.The thermal oxidative degradation and cone calorimetry data further demonstrate the synergistic effect of OP1230 and SiO 2 in the PA6T-66 flame retardant system.

关 键 词：聚对苯二甲酰己二胺/己二酰己二胺 阻燃 协效作用 

分 类 号：TQ320.1[化学工程—合成树脂塑料工业]