利用黑磷纳米片和二乙基膦酸铝体系提高热塑性聚(醚酯)弹性体的防火安全性

IF 3.8 4区 工程技术 Q2 CHEMISTRY, APPLIED
Shijie Zhang, Jiaxuan Li, Jiuhong Liu, Jinpeng Song, Qing Yu, Liang Song, Guiqing Cheng, Zhongwei Wang, Yuxi Han
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引用次数: 0

摘要

热塑性聚醚酯弹性体(TPEE)是一种高度易燃的材料,具有严重的熔融滴落性,这大大限制了它的应用范围。本文首次使用黑磷纳米片(BPs)和二乙基膦酸铝(ADP)来提高 TPEE 的防火安全性。结果表明,ADP/BPs 作为一种协同组合具有良好的分散性和优异的阻燃性,对 TPEE 复合材料的机械性能的负面影响也很小。通过比较 TPEE/ADP-22 和 TPEE/ADP-10/BPs-4,BPs 的引入大大减少了 ADP 的添加量,同时使材料保持较高的垂直燃烧等级,ADP 用量减少了约 54.5%。与纯 TPEE 相比,TPEE/ADP-10/BPs-4 达到了 V-0 级,避免了滴落,极限氧指数值提高到 34.0%。此外,TPEE/ADP-10/BPs-4 在锥形量热仪测试中表现最佳,峰值放热率和总放热量降低幅度最大,分别降低了 44.2% 和 25.3%。对阻燃机理的详细研究发现,ADP/BPs 表现出了凝结相和气相的阻燃影响。该研究拓展了 BPs 在阻燃领域的应用,有助于制备抗滴落阻燃 TPEE。ADP/BPs的协同组合具有优异的阻燃效果。BPs 的引入大大减少了 ADP 的添加量。TPEE/ADP-10/BPs-4 显示出最高的 FPI 和最低的 FGI。ADP/BPs 对基质机械性能的负面影响最小。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Improving fire safety of thermoplastic poly(ether ester) elastomer by black phosphorus nanosheets and aluminum diethylphosphinate system

Thermoplastic poly(ether ester) elastomer (TPEE) is a highly flammable material with severe melt-dropping, which greatly limits its range of applications. Here, black phosphorus nanosheets (BPs) and aluminum diethylphosphinate (ADP) were used to improve the fire safety of TPEE for the first time. Results demonstrated that ADP/BPs as a synergistic combination exhibits good dispersity and excellent flame retardancy, also has minimal negative effects on the mechanical performances of the TPEE composites. By comparing TPEE/ADP-22 and TPEE/ADP-10/BPs-4, the introduction of BPs significantly reduced the addition of ADP while keeping the material at the higher vertical burning grade, ~54.5% reduction in ADP usage. Compared with neat TPEE, TPEE/ADP-10/BPs-4 fulfilled V-0 level, avoided dripping, and the limiting oxygen index value increased to 34.0%. Moreover, TPEE/ADP-10/BPs-4 performed the best in cone calorimetry test, both the peak heat release rate and total heat release reduced the largest, by 44.2% and 25.3%, respectively. The detailed studies of the flame-retardant mechanism found that ADP/BPs showed the fire-retardant impact of the condensed phase and gaseous phase. This work expands BPs in the flame-retardant application and could facilitate to prepare the anti-dripping flame-resistant TPEE.

Highlights

  • BPs as an efficient flame retardant were added into TPEE for the first time.
  • ADP/BPs as a synergistic combination has an excellent fire-retardant effect.
  • The introduction of BPs significantly reduced the addition of ADP.
  • TPEE/ADP-10/BPs-4 showed the highest FPI and the lowest FGI.
  • ADP/BPs has lowest negative effects on the mechanical performances of matrix.
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来源期刊
Journal of Vinyl & Additive Technology
Journal of Vinyl & Additive Technology 工程技术-材料科学:纺织
CiteScore
5.40
自引率
14.80%
发文量
73
审稿时长
>12 weeks
期刊介绍: Journal of Vinyl and Additive Technology is a peer-reviewed technical publication for new work in the fields of polymer modifiers and additives, vinyl polymers and selected review papers. Over half of all papers in JVAT are based on technology of additives and modifiers for all classes of polymers: thermoset polymers and both condensation and addition thermoplastics. Papers on vinyl technology include PVC additives.
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