...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Polymers for advanced technologies >A combination of POSS and polyphosphazene for reducing fire hazards of epoxy resin
【24h】

A combination of POSS and polyphosphazene for reducing fire hazards of epoxy resin

机译：用于减少环氧树脂火灾危害的POSS和多磷腈的组合

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

> Extensive application of epoxy resins (EPs) is highly limited by their intrinsic flammability. Combining EPs with nanoparticles and phosphorus‐nitrogen flame retardants is an effective approach to overcome the drawback. In this work, simultaneous incorporation of octa‐aminophenyl polyhedral oligomeric silsesquioxanes (OapPOSS) and polyphosphazene into EP was reported for the first time. Significantly, reduced peak of heat release rate and UL‐94?V‐0 rating were achieved by tuning suitable ratios of polyphosphazene and OapPOSS for EP composites. During combustion, polyphosphazene promoted char formation and released nonflammable gases such as CO 2 , NH 3 , and N 2 to dilute oxygen concentration and cool pyrolysis zone. Moreover, numerous phosphorus‐containing species acting as free radical scavengers were generated during degradation. Silicon dioxide evolving from OapPOSS protected char residues from thermal degradation. This study provides a novel method to fabricate high‐performance flame‐retardant EP composites, which have potential applications in the field of electrics and electronics.
机译： >对环氧树脂的大量应用（EPS）受其内在易燃性的高度限制。将EPS与纳米颗粒和磷 - 氮阻燃剂组合是一种克服缺点的有效方法。在这项工作中，首次报道了同时将Octa-氨基苯基多面氧化镁硅烷烷（oapposs）和多磷酸化成EP。显着地，通过调节合适的多磷腈和opposits对EP复合材料的合适比率来实现释放速率和UL-94ΔV-0等级的降低。在燃烧期间，多磷腈促进Chat形成并释放不可燃气体，例如Co 2 ，NH 3 ，NH 2 以稀释氧浓度和冷热解区。此外，在降解期间产生了作为自由基清除剂的许多含磷物种。二氧化硅从涂层受到热劣化的影响。该研究提供了一种制造高性能阻燃性EP复合材料的新方法，其在电气和电子设备领域具有潜在的应用。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号