Effect of aluminum diethylphosphinate on the thermal stability and flame retardancy of flexible polyurethane foams

被引：51

作者：

Wang, Xin ^{[1
]}

Zhang, Ping ^{[2
]}

Huang, Zunchu ^{[1
,3
]}

Xing, Weiyi ^{[1
]}

Song, Lei ^{[1
]}

Hu, Yuan ^{[1
]}

机构：

[1] Univ Sci & Technol China, State Key Lab Fire Sci, 96 Jinzhai Rd, Hefei 230026, Anhui, Peoples R China

[2] Southwest Univ Sci & Technol, State Key Lab Cultivat Base Nonmet Composites & F, Mianyang 621010, Sichuan, Peoples R China

[3] Fire Detachment Luan City, Luan 237000, Anhui, Peoples R China

来源：

FIRE SAFETY JOURNAL | 2019年 / 106卷

基金：

中国国家自然科学基金;

关键词：

Flexible polyurethane foam; Aluminum diethylphosphinate; Flame retardancy; Thermal property; LAYERED DOUBLE HYDROXIDE; HEAT RELEASE; DEGRADATION; COMPOSITES; MECHANISMS; COMBINATION; COMBUSTION; COATINGS; DECOMPOSITION; HYPOPHOSPHITE;

D O I：

10.1016/j.firesaf.2019.04.001

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

Flame retardant flexible polyurethane foam (FPUF) was prepared through a free-foaming method with aluminum diethylphosphinate (ADP) as additive. The influence of ADP on the morphology, thermal and flame retardant properties of the FPUF was investigated, and the flame retardant mechanism was further explored. TGA results indicated that the addition of ADP slightly affected the initial degradation temperature and the maximum degradation temperature. With the increase of the ADP loading, the char yield of the resultant FPUF gradually increased. When the ADP loading was 20%, the peak heat release rate and the total heat release of the resultant FPUF was reduced by 35% and 33%, respectively, compared to the unmodified FPUF. The addition of ADP improved the char formation of the FPUF, which could inhibit the transfer of oxygen and flammable gases between the flame and the underlying polymer and thus improve the fire retardancy.

引用

页码：72 / 79

页数：8

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