Synergy between manganese phytate and expandable graphite on thermal stability and combustion behavior of rigid polyurethane foam

被引：6
作者：
Zhang, Xu [1 ,2 ,3 ]
Sun, Simiao [1 ,2 ]
Li, Handong [1 ,2 ]
Wang, Zhi [1 ,2 ]
Xie, Hua [1 ,2 ]
机构：
[1] Shenyang Aerosp Univ, Liaoning Key Lab Aircraft Fire Explos Control & Re, Shenyang, Peoples R China
[2] Shenyang Aerosp Univ, Sch Safety Engn, Shenyang, Peoples R China
[3] Shenyang Aerosp Univ, Liaoning Key Lab Aircraft Fire Explos Control & Re, Shenyang 110136, Peoples R China
来源：
POLYMERS FOR ADVANCED TECHNOLOGIES | 2023年 / 34卷 / 06期
关键词：
combustion performance; manganese phytate; rigid polyurethane foam; synergy; thermal stability; FLAME-RETARDANT;
D O I：
10.1002/pat.6014
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
Rigid polyurethane foam (RPUF) modified by self-made manganese phytate (MnPa) and expandable graphite (EG) has been prepared successfully. The thermal stability and combustion behavior of the modified RPUFs (MEPUF) have been studied using the thermogravimetric analysis, pyrolysis kinetics analysis, smoke density analysis, limiting oxygen index (LOI), and UL-94 level test. When compared to MEPUF1 (MnPa/EG = 3/1), MEPUF2 (MnPa/EG = 1/1) had a 9.1 degrees C higher initial decomposition temperature and had a greater activation energy. Additionally, the smoke density experiment demonstrated that the light transmittance of MEPUF2 increased by 5.1% compared with MEPUF1 in 0-70s and the LOI of MEPUF2 reached 23%. The current investigation indicated that MEPUF2 had better thermal stability and flame retardancy.
引用
收藏
页码：1856 / 1867
页数：12
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