中国塑料 ›› 2013, Vol. 27 ›› Issue (02): 86-89.DOI: 10.19491/j.issn.1001-9278.2013.02.017

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埃洛石纳米管对膨胀阻燃聚丙烯阻燃性能影响

刘喜山 谷晓昱 姜鹏 李玉玲 张胜   

  1. 北京化工大学材料学院 北京化工大学 北京化工大学 北京化工大学 碳纤维及功能高分子教育部重点实验室
  • 收稿日期:2012-10-11 修回日期:1900-01-01 出版日期:2013-02-26 发布日期:2013-02-26

Flame retardancy of Halloysite and Intumescent Flame Retardant on Polypropylene

  

  • Received:2012-10-11 Revised:1900-01-01 Online:2013-02-26 Published:2013-02-26

摘要: 以聚磷酸铵(APP)和季戊四醇(PER)为膨胀阻燃体系(IFR)制备了含有埃洛石纳米管 (HNTs)的无卤膨胀阻燃聚丙烯(PP)复合材料。通过极限氧指数(LOI)和热失重分析(TGA)以及锥形量热仪(CONE)研究了天然纳米材料埃洛石纳米管 (HNTs)的加入对膨胀阻燃PP阻燃性能与热稳定性的影响,并通过扫描电镜(SEM)对残炭形貌进行了观察和分析。结果表明:加入2份的HNTs后,材料的LOI提高到32%,UL-94达到V0级别,热释放速率降低到222kw/m2。SEM的结果表明,加入HNTs后形成的炭层结构更致密,阻燃效果更好。

关键词: 聚丙烯, 埃洛石纳米管, 无卤阻燃

Abstract: halloysites were introduced into PP/IFR composite containing ammonium polyphosphate (APP) and pentaerythritol (PER). Limiting oxygen index (LOI), cone calorimeter test (CCT) and thermal gravimetric analysis (TGA) were used to characterize the flammability and thermal behaviour of PP composites. The morphology of the char was observed and analyzed by scanning electron microscope (SEM). It has been found that there exists a synergism between IFR and halloysite in improving the fire performance of PP. The composite containing 2phr HNTs has a LOI value of 32%, UL-94 test can reach V0 level and heat release rate (HRR) can lower to 222kw/m2. SEM results show that 2phr HNTs is the optimal loading in the composites and can provide the best flame retradant result.

Key words: polypropylene, halloysite, non-halogen flame retardant