中国塑料

中国塑料 ›› 2015, Vol. 29 ›› Issue (07): 92-95 .DOI: 10.19491/j.issn.1001-9278.2015.07.016

• 助剂 • 上一篇    下一篇

含磷阻燃剂与硼酸锌协效阻燃聚酰胺11的研究

许国志1,谷晓昱2,张胜2   

  1. 1. 北京工商大学材料与机械工程学院2. 北京化工大学
  • 收稿日期:2015-01-07 修回日期:2015-03-24 出版日期:2015-07-26 发布日期:2015-07-26

Synergism Between Phosphorous Flame Retardant and Zinc Borate on the Flame Retardancy of Polyamide11

  • Received:2015-01-07 Revised:2015-03-24 Online:2015-07-26 Published:2015-07-26

摘要： 以二乙基次磷酸铝(DEAP)，三聚氰胺磷酸盐(MP)和硼酸锌(ZB)为阻燃体系对聚酰胺11(PA11)进行阻燃改性。通过极限氧指数、垂直燃烧测试(UL 94)和锥形量热仪以及热失重分析研究了阻燃体系构成对复合材料阻燃性能与热稳定性的影响，采用红外光谱对残炭成分进行分析。结果表明，添加20 % DEAP时，复合材料的极限氧指数达到28 %，UL 94 测试达到V-2级, 添加13 %DEAP/7 %MP和12.5 %DEAP/7 %MP/0.5 %ZB时，复合材料的极限氧指数可达到29 %，UL 94测试达到V-1级；DEAP对PA11的热释放速率及总热释放量有显著的控制作用，MP和ZB的加入进一步提升其阻燃性能；DEAP/MP/ZB协同使用时残炭的膨胀性、强度及致密性最好；ZB的加入使残炭中的羟基含量增加，应该是ZB的分解所致。

关键词: 聚酰胺11, 二乙基次磷酸铝, 三聚氰胺磷酸盐, 硼酸锌, 无卤阻燃

Abstract: Diethyl aluminum phosphate (DEAP), melamine phosphate (MP) and zinc borate (ZB) was used in polyamide11 (PA11), the limiting oxygen index, vertical burning UL 94 grade, and cone thermos value were characterized. The thermosstability was studied by thermal gravimetric analysis. The char constitution was analyzed by FTIR. The limiting oxygen index value of neat PA11 was only 23 % and without UL 94 rating. The sample containing 20 % DEAP possessed a limiting oxygen index value of 28 % with a V-2 grade in UL 94 test, and the sample containing 13 % DEAP/7 %MP and 12.5 % DEAP/7 %MP/0.5 %ZB gave rise to a limiting oxygen index of up to 29 % with V-1 rating in UL 94. The char was significantly expanded after the addition of 12.5 % DEAP/7 %MP/0.5%ZB.

Key words: polyamide11, diethyl aluminum phosphate, melamine phosphate, zinc borate, non-halogen flame retardant

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