Synthesis and application of aminophenyl-s-triazine derivatives as potential flame retardants in the modification of epoxy resins.
Synthesis and application of aminophenyl-s-triazine derivatives as potential flame retardants in the modification of epoxy resins.
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氨基苯基均三嗪衍生物的合成及其在环氧树脂改性中的潜在阻燃剂应用
DOI：
10.1039/c8ra07450j
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发表时间：
2018-11-07
期刊：
影响因子：
3.9
通讯作者：
Dai, Lizong
中科院分区：
文献类型：
--
作者：
Wu, Haiyang;Hu, Rong;Zeng, Birong;Yang, Li;Chen, Ting;Zheng, Wei;Liu, Xinyu;Luo, Weiang;Dai, Lizong
In order to develop new phosphorus–nitrogen-containing flame retardants, three novel compounds of DOPO-substituted aminophenyl-s-triazine (TAT-DOPO) with different P/N element ratios were synthesized by Kabachnik–Fields reaction. TAT-triDOPO possessing three DOPO units in one molecule exhibited the best thermal stability. Besides, TAT-triDOPO and TAT-hexaDOPO possessing active hydrogen displayed the characteristics of reactive-type retardant, while TAT-enneaDOPO without active hydrogen represented additive-type retardant. The influences of three TAT-DOPO compounds on the thermal stability, flame retardancy and mechanical properties of the cured EP composites were investigated. Compared with pure EP, the char yields of EP/TAT-DOPO were increased. The LOI value and the UL-94 ratings of EP/TAT-triDOPO with a 5% loading were improved to 34.0% and V-0 grade. The PHRR, THR and HRC of EP/TAT-triDOPO were decreased by 25.7%, 21.1% and 25.4%, respectively. Furthermore, the incorporation of TAT-triDOPO could also improve the flexural strength and elastic modulus of cured EP. It was explained that the existence of active hydrogen atoms within TAT-triDOPO molecule can act as effective chemical cross-linking points in EP network. Finally, based on the SEM and TGA-FTIR analysis of pyrolytic products of cured EP/TAT-DOPO, it was deduced that the prepared TAT-DOPO flame retardant could exhibit both condensed phase and gas phase flame-retardancy mechanism. Novel DOPO-substituted aminophenyl-s-triazine (TAT-DOPO) compounds with controllable P/N element ratio were synthesized and applied as flame retardants for epoxy resins.
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影响因子：
3
作者：
WANG, CS;BERMAN, JR;MENDOZA, A
通讯作者：
MENDOZA, A
影响因子：
3.5
作者：
Wang, Haimei;Zhang, Yuechao;Zhang, Yuying
通讯作者：
Zhang, Yuying
带或不带反应基团的Bi-DOPO结构阻燃剂：对不饱和聚酯热稳定性和可燃性的影响
影响因子：
4.2
作者：
Cao, Yuan;Wang, Xiu-Li;Wang, Yu-Zhong
通讯作者：
Wang, Yu-Zhong
影响因子：
5.9
作者：
Levchik, S;Piotrowski, A;Yao, Q
通讯作者：
Yao, Q
影响因子：
2.3
作者：
Yu, Jian;Zhou, Tianchi;Wei, Qufu
通讯作者：
Wei, Qufu