• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>RSC Advances >Synergistic charring effect of triazinetrione-alkyl-phosphinate and phosphaphenanthrene derivatives in epoxy thermosets
【24h】

Synergistic charring effect of triazinetrione-alkyl-phosphinate and phosphaphenanthrene derivatives in epoxy thermosets

机译：三嗪三酮-烷基次膦酸酯和磷菲衍生物在环氧热固性塑料中的协同炭化作用

获取原文
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

A flame retardant tri-3-(aluminum phosphinate)-propyl-1-triazine-trione (TAHP) was synthesized via the addition reaction between triallyl isocyanurate (TAIC) and hypophosphorous acid, and the molecular structure and thermal stability of TAHP were characterized. Then, TAHP was applied to the diglycidyl ether of bisphenol A (EP) cured using 4,4′-diamino-diphenylmethane with another DOPO derivative TAD, and the synergistic flame-retardant behavior of TAHP/TAD and the mechanism of action were also investigated. Compared with 4% TAHP/EP and 4% TAD/EP samples, the sample with 1 wt% TAHP and 3 wt% TAD obtained an LOI value of 36.0%, passed the UL94 V-0 rating test and exhibited a decreased peak value of the heat release rate. The interaction of TAHP and TAD locked more phosphorus-containing components in the residue and formed a phosphorus-rich char layer mixed with aluminum phosphate, which generated a synergistic charring effect between TAHP and TAD and brought a better barrier effect to the epoxy thermosets during combustion. The interaction between TAHP and TAD led to a more balanced flame retardancy in the gaseous phase and condensed phase. Therefore, the TAHP/TAD system was able to endow epoxy thermosets with better flame retardancy than them used alone.
机译：通过三烯丙基异氰脲酸酯（TAIC）与次磷酸的加成反应，合成了阻燃剂三（次膦酸铝）丙基-1-三嗪-三酮（TAHP）。表征了TAHP的热稳定性。然后，将TAHP应用于由4,4'-二氨基-二苯基甲烷与另一种DOPO衍生物TAD固化的双酚A（EP）的二缩水甘油醚，并研究了TAHP / TAD的协同阻燃行为及其作用机理。 。与4％TAHP / EP和4％TAD / EP样品相比，具有1 wt％TAHP和3 wt％TAD的样品的LOI值为36.0％，通过了UL94 V-0等级测试，并显示出降低的峰值。放热率。 TAHP和TAD的相互作用锁定了残留物中更多的含磷成分，并形成了与磷酸铝混合的富磷炭层，从而在TAHP和TAD之间产生了协同炭化作用，并在燃烧过程中对环氧热固性树脂产生了更好的阻隔作用。 。 TAHP和TAD之间的相互作用导致气相和冷凝相的阻燃性更加平衡。因此，TAHP / TAD系统能够赋予环氧热固性塑料比单独使用的阻燃性更好的阻燃性。

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