A phosphorus-containing aliphatic amine curing agent towards intrinsic flame-retardant and smoke-suppressive epoxy resins

被引：9
作者：
Yang, Qingshan [1 ]
Wang, Jun [1 ,2 ]
Yang, Shuang [2 ]
Huo, Siqi [3 ]
Song, Pingan [4 ]
Fang, Zhengping [3 ]
Wang, Hao [4 ]
机构：
[1] Wuhan Univ Technol, Sch Mat Sci & Engn, Wuhan 430070, Peoples R China
[2] Wuhan Univ Technol, Sch Mech & Elect Engn, Wuhan 430070, Peoples R China
[3] NingboTech Univ, Lab Polymer Mat & Engn, Ningbo 315100, Peoples R China
[4] Univ Southern Queensland, Ctr Future Mat, Springfield 4300, Australia
来源：
JOURNAL OF POLYMER RESEARCH | 2023年 / 30卷 / 02期
基金：
中国国家自然科学基金; 中国博士后科学基金;
关键词：
Aliphatic amine; Epoxy resin; Curing behaviors; Thermal properties; Flame retardancy; THERMAL-DEGRADATION; ACID;
D O I：
10.1007/s10965-023-03437-8
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
A phosphorus-containing aliphatic amine curing agent (DPT) was synthesized using triethylenetetramine (TETA) and diphenyl chlorophosphate (DPCP), and it served as a flame-retardant curing agent to reduce the fire risk of epoxy resin (EP) systems. The curing behaviors, thermal properties and flame retardancy of the DPT-containing EP systems were investigated in detail. The differential scanning calorimetry (DSC) analysis showed that the introduction of phosphorus-based group reduced the curing activity of -NH2/-NH- groups in DPT. The glass transition temperature (T-g) values of the DPT-containing EP systems were modestly lower than that of EP/TETA system. The EP cured by 29wt% DPT (EP/DPT-29) achieved a limiting oxygen index (LOI) of 27.1% and a UL-94 V-0 rating, and its peak heat release rate (PHRR) and total smoke production (TSP) were 51.6% and 37.8% lower than those of EP/TETA. The improved flame retardancy and smoke suppression of the DPT-containing EP systems was attributed to the bi-phase flame-retardant action of DPT.
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页数：11
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