中国塑料 ›› 2016, Vol. 30 ›› Issue (05): 93-97 .DOI: 10.19491/j.issn.1001-9278.2016.05.018

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次磷酸铝与锡酸锌协效阻燃聚对苯二甲酸丁二醇酯的研究

张志帆1,武伟红2,齐艳侠1,屈红强1,徐建中3   

  1. 1. 河北大学,化学与环境科学学院2. 河北农业大学理学院3. 河北大学化学与环境科学学院
  • 收稿日期:2015-12-23 修回日期:2016-02-01 出版日期:2016-05-26 发布日期:2016-05-26

Synergistic Effect of Aluminum Hypophosphite and Zinc Stannate as Flame Retardant for Poly (1,4butylene terephthalate)

  • Received:2015-12-23 Revised:2016-02-01 Online:2016-05-26 Published:2016-05-26

摘要: 利用共沉淀法合成了次磷酸铝(AHP)和羟基锡酸锌(ZHS),将ZHS在300 ℃条件下用马弗炉煅烧3 h得到无定形的锡酸锌(ZS)。将AHP和ZS协同阻燃聚对苯二甲酸丁二醇酯(PBT),并通过极限氧指数、垂直燃烧测试(UL 94)和微型量热等分析了体系的阻燃性。结果表明,当ZS的含量为1.4 %(质量分数,下同)时,综合极限氧指数和UL 94测试结果,其阻燃效果最好,极限氧指数从纯PBT的21.8 %上升到24.1 %,UL 94等级从纯PBT的滴落严重提高到V-0级,说明AHP与ZS在合适的比例下能显著提高PBT的抗滴落性;当ZS的含量为1.4 %时,样品的热释放速率从纯PBT的561.40 W/g下降到538.57 W/g。

关键词: 次磷酸铝, 锡酸锌, 阻燃, 聚对苯二甲酸丁二醇酯, 协效

Abstract: Aluminum hypophosphite (AHP) and Zinc hydroxystannat (ZHS) were synthesized through homogeneous precipitation method. And then ZHS was calcined in a muffle furnace at 300 ℃ for 3 h forming amorphous zinc stannate (ZS). AHP and ZS were used as a flame retardant for poly (1,4butylene terephthalate) (PBT). When the content of ZS was 1.4 %, limiting oxygen index increased from 21.8 % for neat PBT to 24.1 %,and UL 94 rating reached V-0. In addition, the heat release rate was decreased to 538.57 W/g from 561.40 W/g for neat PBT.

Key words: aluminum hypophosphite;zinc stannate;flame retardant;poly (1;4-butylene terephthalate), synergistic