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

被引：0

作者：

Qingshan Yang

Jun Wang

Shuang Yang

Siqi Huo

Pingan Song

Zhengping Fang

Hao Wang

机构：

[1] Wuhan University of Technology,School of Materials Science and Engineering

[2] Wuhan University of Technology,School of Mechanical and Electronic Engineering

[3] NingboTech University,Laboratory of Polymer Materials and Engineering

[4] University of Southern Queensland,Center for Future Materials

来源：

Journal of Polymer Research | 2023年 / 30卷

关键词：

Aliphatic amine; Epoxy resin; Curing behaviors; Thermal properties; Flame retardancy;

D O I：

暂无

中图分类号：

学科分类号：

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 (Tg) 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.

引用

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