中国塑料 ›› 2022, Vol. 36 ›› Issue (12): 65-70.DOI: 10.19491/j.issn.1001-9278.2022.12.010

• 材料与性能 • 上一篇    下一篇

磷铝分子筛对膨胀阻燃聚丙烯复合材料阻燃与热稳定性能影响

龚绍峰(), 滕霞, 唐武飞()   

  1. 湖南省生物质资源综合开发利用工程技术研究中心,化学与生物工程学院,湖南科技学院,湖南 永州 425199
  • 收稿日期:2022-08-30 出版日期:2022-12-26 发布日期:2022-12-20
  • 通讯作者: 唐武飞(1987-),男,博士,高级工程师,buctfiresafetytwf@163.com
    E-mail:simon.gong@huse.edu.cn;buctfiresafetytwf@163.com
  • 作者简介:龚绍峰(1981-),男,博士,讲师,simon.gong@huse.edu.cn

Effect of AlPO⁃based zeolites on flame⁃retardancy and thermal stability of polypropylene composites

GONG Shaofeng(), TENG Xia, TANG Wufei()   

  1. Hunan Engineering Technology Research Center for Comprehensive Development and Utilization of Biomass Resources,College of Chemistry and Bioengineering,Hunan University of Science and Engineering,Yongzhou 425199,China
  • Received:2022-08-30 Online:2022-12-26 Published:2022-12-20
  • Contact: TANG Wufei E-mail:simon.gong@huse.edu.cn;buctfiresafetytwf@163.com

摘要:

通过水热合成法制备了系列不同结构类型的磷铝分子筛(AlPO⁃nn=5, 11, 17, 34),并通过熔融挤出共混,将系列AlPO⁃n分子筛应用到膨胀阻燃聚丙烯(PP/IFR)复合材料中,致力改善其阻燃和热稳定性能。利用极限氧指数仪、水平垂直燃烧仪、锥形量热仪和万能试验机分别测试材料的阻燃性能和力学性能。结果表明,AlPO⁃n分子筛可改善PP/IFR复合材料的相关性能,其中AlPO⁃17(1 %,质量分数,下同)相对其他类型磷铝分子筛能明显改善PP/IFR复合材料的阻燃和热稳定性能,复合材料的极限氧指数和600 ℃的残炭率相对于PP分别提高至34.8 %和14.3 %。

关键词: 磷铝分子筛, 聚丙烯, 阻燃, 热稳定性

Abstract:

AlPO⁃based zeolites (AlPO⁃nn=5, 11, 17, and 34) were prepared through hydrothermal synthesis. The obtained products were incorporated into polypropylene (PP) to prepare the intumescent flame⁃retardant composites for enhancing its flame retardancy and thermal stability. The flammability and mechanical properties of the composites were evaluated through limiting oxygen index, vertical burning test, cone calorimetry, and tensile test. The results indicated that the PP composite containing 1 wt % AlPO⁃17 achieved a significantly enhancement in LOI and char residue, which increased by 34.8 % and 14.3 %, respectively, compared to pure PP.

Key words: AlPO?based zeolites, polypropylene, flame retardancy, thermal stability

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