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首页> 外文期刊>ACS applied materials & interfaces >Design of Hierarchical NiCo-LDH@PZS Hollow Dodecahedron Architecture and Application in High-Performance Epoxy Resin with Excellent Fire Safety
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Design of Hierarchical NiCo-LDH@PZS Hollow Dodecahedron Architecture and Application in High-Performance Epoxy Resin with Excellent Fire Safety

机译：分层Nico-LDH @ PZS空心十二板式建筑设计及其在高性能环氧树脂中的优异防火安全性

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摘要

Developing advanced performance epoxy (EP) resin with low flammability and light smoke has been an increasing focus of its research. Especially, it is crucial to reduce the emission of smoke and toxic gases generated during the burning of EP, so that it meets the green and safe industrial requirement. Therefore, a 3D [email?protected] hollow dodecahedral structure was designed and synthesized by using the ZIF-67 as both the precursor and an in situ sacrificial template and the amino group-containing polyphosphazene (PZS) as interfacial compatibilizer and flame retardant cooperative. The release behaviors of heat, smoke, and poisonous gases were carefully investigated. More precisely, the EP/[email?protected] is endowed with a decrease of 30.9% and 11.2% of the peak heat release rate and the total heat release, respectively. The emissions of smoke and poisonous gases including nitric oxides, aromatic compounds, carbonyl compounds, oxycarbide, and hydrocarbons are much less as well. Especially, the maximum release concentrations of HCN of EP/NiCo-LDH4.0 are reduced by 87.8%. With regard to styrene, methane, and ethane, the maximum release concentrations of EP/[email?protected] are reduced by 85.9%, 90.6%, and 93.1%, respectively. The total yield of CO and CO_(2) and the consumption of O_(2) of EP/[email?protected] are also reduced by 64.5%, 32.4%, and 33.6%. The fractional effective dose, an index of toxicity smoke, of EP/[email?protected] is reduced by 20.4%. The DMA tests were performed to study the mechanical properties of EP composites, and the storage modulus and Tg of EP composites are increased with the incorporation of [email?protected] The possible mechanism of flame retardant was proposed based on the analysis of the condensed and gas phases of EP composites.
机译：开发具有低易燃性和轻烟的先进性能环氧（EP）树脂一直是其研究的越来越大。特别是，减少EP燃烧过程中产生的烟雾和有毒气体排放至关重要，因此它符合绿色和安全的工业需求。因此，通过使用ZIF-67作为前体和原位牺牲模板和含氨基的多磷碱（PZS）作为界面相容剂和阻燃协同，通过使用ZIF-67来设计和合成3D [电子邮件吗？受保护的]中空十二次面积结构。仔细研究了热量，烟雾和有毒气体的释放行为。更确切地说，EP / [电子邮件吗？受保护的]分别赋予30.9％和11.2％的峰热释放速率和总热释放的11.2％。烟雾和有毒气体的排放包括一氧化氮，芳族化合物，羰基化合物，氧化碳化硼和烃也较小。特别是，EP / Nico -LDH4.0的最大释放浓度为87.8％。关于苯乙烯，甲烷和乙烷，EP / [邮件®保护]的最大释放浓度分别降低了85.9％，90.6％和93.1％。 CO和CO_（2）的总产量和EP / [电子邮件？保护]的O_（2）的消费也减少了64.5％，32.4％和33.6％。分数有效剂量，毒性烟雾指数，EP / [电子邮件吗？保护]减少20.4％。进行DMA测试以研究EP复合材料的机械性能，并且通过掺入[电子邮件的封装]的EP复合材料的储存模量和Tg增加了基于凝聚的分析和凝结的阻燃剂的可能机制EP复合材料的气体阶段。

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  • 来源
    《ACS applied materials & interfaces》 |2019年第44期|共14页
  • 作者

    Xia Zhou; Xiaowei Mu; Wei Cai; Junling Wang; Fukai Chu; Zhoumei Xu; Lei Song; Weiyi Xing; Yuan Hu;

  • 作者单位

    State Key Laboratory of Fire Science University of Science and Technology of China;

    State Key Laboratory of Fire Science University of Science and Technology of China;

    State Key Laboratory of Fire Science University of Science and Technology of China;

    State Key Laboratory of Fire Science University of Science and Technology of China;

    State Key Laboratory of Fire Science University of Science and Technology of China;

    State Key Laboratory of Fire Science University of Science and Technology of China;

    State Key Laboratory of Fire Science University of Science and Technology of China;

    State Key Laboratory of Fire Science University of Science and Technology of China;

    State Key Laboratory of Fire Science University of Science and Technology of China;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 化学工业;
  • 关键词

    layered double hydroxides; polyphosphazene; fire safety; epoxy resin; flame retardant mechanism;

    机译：分层双氢氧化物;多磷腈;防火安全;环氧树脂;阻燃机制;

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