以次磷酸铝(AHP)和硼酸锌(ZB)为复合阻燃剂,通过熔融共混法制备了阻燃聚乙烯(PE)材料,研究了AHP和ZB对PE的协同阻燃效应.结果表明,AHP、ZB阻燃剂在PE基体中分散均匀;添加质量分数为25％ AHP阻燃剂,PE材料的极限氧指数值(LOI)提升至25％,通过垂直燃烧测试(UL-94(3.2 mm)) V-2级,显示出良好的阻燃效果;引入ZB后,材料LOI值呈先升高后下降趋势,在m(AHP)∶m(ZB) =21∶4时,出现峰值,达到27.2％,并通过UL-94(3.2 rm) V-1级;热失重分析(TGA)结果显示,AHP、ZB阻燃剂能同时提高PE材料的热稳定性和成炭率,当m(AHP)∶m(ZB)=17∶8时,残渣率达到25.7％.
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