Thermal characteristics of novel NaH2PO4/NaHSO4 flame retardant system for polyurethane foams

被引：23
作者：
Kulesza, K.
Pielichowski, K.
Kowalski, Z.
机构：
[1] Inst Heavy Oragan Synth Blachownia, PL-47225 Kedzierzyn Kozle, Poland
[2] Krakow Tech Univ, Dept Chem & Technol Polymers, PL-31155 Krakow, Poland
[3] Krakow Tech Univ, Inst Inorgan Chem & Technol, PL-31155 Krakow, Poland
来源：
JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY | 2006年 / 86卷 / 02期
关键词：
flame retardation; polyurethane; sodium dihydrogenphosphate; sodium hydrogensulfate; thermal decomposition;
D O I：
10.1007/s10973-005-7294-3
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
Thermal behaviour of NaH2PO4/NaHSO4 flame retardant system for polyurethane (PU) rigid foams was investigated by simultaneous TG/DTA under dynamic conditions. It has been found that the most probable mode of action of 5:3 (mass/mass) NaH2PO4/NaHSO4 system, which proved to be most efficient in PU flame retardation (in comparison with other NaH2PO4/NaHSO4 compositions), is based on formation of char-promoting phosphoric acids and on thermal stabilisation of PU macrochains by an excess of sodium dihydrogenphosphate.
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收藏
页码：475 / 478
页数：4
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