ZIF-8协同膨胀阻燃聚丙烯制备及性能研究

doi:10.16265/j.cnki.issn1003-3033.2018.01.012

中国安全科学学报 ›› 2018, Vol. 28 ›› Issue (1): 69-74.doi: 10.16265/j.cnki.issn1003-3033.2018.01.012

ZIF-8协同膨胀阻燃聚丙烯制备及性能研究

欧红香¹ 教授, 陈光浩¹, 韦林艳¹, 吴洁¹, 李锦春² 教授, 邢志祥¹ 教授

1 常州大学环境与安全工程学院,江苏常州213164
2 常州大学材料科学与工程学院,江苏常州 213164

收稿日期:2017-10-13 出版日期:2018-01-28 发布日期:2020-09-28
作者简介:欧红香 (1976—),女,湖南宜章人,博士,教授,主要从事阻燃材料、环境安全功能材料等方面的研究。E-mail:760263761@qq.com。
基金资助:
国家自然科学基金资助(51574046, 51473024);江苏省自然科学基金资助(BK20140264,BK20150269)。

Study on preparation and properties of ZIF-8 synergistic intumescent flame retardant polypropylene

OU Hongxiang¹, CHEN Guanghao¹WEI Linyan¹, WU Jie¹, LI Jinchun², XING Zhixiang¹

1 School of Environmental & Safety Engineering, Changzhou University, Changzhou Jiangsu 213164, China
2 School of Materials Science & Engineering, Changzhou University, Changzhou Jiangsu 213164, China

Received:2017-10-13 Online:2018-01-28 Published:2020-09-28

摘要/Abstract

摘要： 为提高纯聚丙烯(PP)使用过程中的本质安全性,改善其阻燃和抗静电性能,利用ZIF-8类沸石咪唑酯骨架材料、聚磷酸铵(APP)和季戊四醇(PER)制备新型无卤膨胀阻燃复合材料(ZIF-8/PP),通过氧指数、力学测试、热重分析、电阻测量等研究ZIF-8对聚丙烯性能的影响。结果表明:ZIF-8能有效提高纯PP的阻燃、抗静电性能,但使其力学性能降低;ZIF-8质量分数为3%时,ZIF-8/PP的氧指数达到28%,拉伸强度降为21.2 MPa,表面电阻率降至10⁸ Ω·cm,实现从绝缘体到防静电体的转变;ZIF-8能增加ZIF-8/PP的残炭量,在熔体表面形成致密泡孔形貌的炭层抑制烟气,使材料的热稳定性提高。

关键词: 聚丙烯(PP), 类沸石, 膨胀阻燃, 氧指数, 热稳定性, 复合材料

Abstract: To improve the intrinsic safety of pure PP with increasing flame retardancy and antistatic properties, a novel halogen-free intumescent flame retardant polypropylene composites (ZIF-8/PP) were prepared using ZIF-8 type zeolite imidazolate framework material, ammonium polyphosphate (APP) and pentaerythritol (PER). The effects of ZIF-8 on properties of polypropylene were studied with methods such as oxygen index, mechanical test, thermal gravimetric analysis, and resistance test. The results indicate that the addition of ZIF-8 can improve effectively the flame retardancy and antistatic properties of pure PP, with slight decreasing of the mechanical property, that when the mass fraction of ZIF-8 is 3%, the following properties of ZIF-8/PP expressed: the oxygen index reaches 28%, the surface resistivity decrease to 10⁸ Ω·cm (resulting in the transition from insulator to anti-static body), and the tensile strength of ZIF-8/PP is 21.2 MPa, and that ZIF-8 can increase the composites' amount of residual carbon, and the compact carbon layer with foam morphology formed in the melt surface inhibiting the flue gas, and improve the composites' thermal stability.

Key words: polypropylene(PP), zeolite, intumescent flame retardant, oxygen index, thermal stability, composites

中图分类号:

X937

欧红香, 陈光浩, 韦林艳, 吴洁, 李锦春, 邢志祥. ZIF-8协同膨胀阻燃聚丙烯制备及性能研究[J]. 中国安全科学学报, 2018, 28(1): 69-74.

OU Hongxiang, CHEN GuanghaoWEI Linyan, WU Jie, LI Jinchun, XING Zhixiang. Study on preparation and properties of ZIF-8 synergistic intumescent flame retardant polypropylene[J]. China Safety Science Journal, 2018, 28(1): 69-74.

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ZIF-8协同膨胀阻燃聚丙烯制备及性能研究

Study on preparation and properties of ZIF-8 synergistic intumescent flame retardant polypropylene

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