A facile method to flame-retard epoxy resin with maintained mechanical properties through a novel P/N/S-containing flame retardant of tautomerization
A facile method to flame-retard epoxy resin with maintained mechanical properties through a novel P/N/S-containing flame retardant of tautomerization
复制标题
通过新型含 P/N/S 互变异构阻燃剂来阻燃环氧树脂并保持机械性能的简便方法
DOI：
10.1016/j.matlet.2017.05.135
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发表时间：
2017-10-01
影响因子：
3
通讯作者：
Zheng, Xuelin
中科院分区：
文献类型：
--
作者：
Jian, Rongkun;Wang, Pan;Zheng, Xuelin
通过苯基二氯膦(PPDC)与2-氨基苯并噻唑(ABZ)的酰胺化反应，成功合成了新型苯基膦二苯并噻唑酰胺(PPDAB)及其亚胺型互变异构体，并将其用于阻燃环氧树脂(EP)。在PPDAB-Amine作为添加型阻燃剂和PPDAB-Imine作为反应型阻燃剂的帮助下，PPDAB在环氧树脂中表现出了优异的综合性能。含磷0.69 wt%的EP达到UL-94 V-0等级，LOI值提高至31.0%。与EP相比，其在锥形量热仪测得的放热量峰值（PHRR）、总放热量（THR）和产烟速率（SPR）方面的性能明显提高。此外，PPDAB含量低于10wt%的EP-PPDAB也表现出与EP相似的玻璃化转变温度（Tg），并且在拉伸强度和冲击强度方面保持良好的机械性能。 (C) 2017 Elsevier B.V. 保留所有权利。
A novel phenylphosphonic di-benzothiazolyl amide (PPDAB) and its imine-type tautomer were successfully synthesized via the amidation of phenylphosphonic dichloride (PPDC) with 2-aminobenzothiazole (ABZ), and used to flame-retard epoxy resin (EP). In the help of PPDAB-Amine as an additive-type flame retardant and PPDAB-Imine as a reactive-type flame retardant, PPDAB showed excellent general properties in epoxy resin. EP with 0.69 wt% of phosphorus achieved UL-94 V-0 rating, and the LOI value of it was increased to 31.0%. Compared with the EP, its performances in terms of the peak of heat release rate (PHRR), total heat release (THR), and smoke production rate (SPR) obtained from cone calorimeter were obviously improved. Besides, EP-PPDAB in which the amount of PPDAB was lower than 10 wt% also exhibited similar glass transition temperature (Tg) to EP, and well-maintained mechanical properties in terms of tensile strength and impact strength. (C) 2017 Elsevier B.V. All rights reserved.