CAJ | 학술논문

以六氯环三磷腈（HCCP）、对羟基苯甲醛及亚磷酸二乙酯等为原料，成功合成了一种反应型磷-氮膨胀阻燃剂六(4-磷酸二乙酯羟甲基苯氧基)环三磷腈(HPHPCP)，HPHPCP结构经傅里叶红外光谱（FTIR）、核磁共振（NMR）证实。热失重（TG/DTG）表明HPHPCP具有较高的热稳定性及良好的成炭性，氮气氛下的起始分解温度为162.7℃，800℃时残炭量大于40%(质量分数)；利用 HPHPCP 的羟基结构，应用于硬质聚氨酯泡沫塑料中，可以显著提高聚氨酯硬泡的阻燃性能，添加30%的HPHPCP就可以使聚氨酯氧指数达到27%。
이륙록배삼린정（HCCP）、대간기분갑철급아린산이을지등위원료，성공합성료일충반응형린-담팽창조연제륙(4-린산이을지간갑기분양기)배삼린정(HPHPCP)，HPHPCP결구경부리협홍외광보（FTIR）、핵자공진（NMR）증실。열실중（TG/DTG）표명HPHPCP구유교고적열은정성급량호적성탄성，담기분하적기시분해온도위162.7℃，800℃시잔탄량대우40%(질량분수)；이용 HPHPCP 적간기결구，응용우경질취안지포말소료중，가이현저제고취안지경포적조연성능，첨가30%적HPHPCP취가이사취안지양지수체도27%。
A novel reactive flame retardant named hexakis (4-diethyl phosphate hydroxymethyl phenoxy) cyclotriphosphazene (HPHPCP) was synthesized from hexachlorocyclotriphosphazene (HCCP),p-hydroxy benzaldehyde and diethyl phosphite. Chemical structures of intermediate and HPHPCP were characterized by Fourier-transform infrared spectroscopy (FTIR), proton and 31P nuclear magnetic resonance (NMR). Thermal stability of the HPHPCP was determinedvia thermogravimetric analysis (TGA). Halogen-free flame-retardant rigid polyurethane foams (RPU) were prepared by using HPHPCP as a reactive flame retardant. The effect of HPHPCP content on the thermal and flame-retardant properties of RPU was investigated with TGA, and limiting oxygen index (LOI). The temperatures of 5%(mass) loss (T5%) of HPHPCP in nitrogen and air were 162.7℃ and 153.0℃, and the residues at 800℃ of HPHPCP in nitrogen and air were 42.1% and 12.0%(mass), respectively. HPHPCP could enhance thermal stability of RPU. TheT5% of RPU-20%HPHPCP was 193.9℃, 20℃ higher than pure RPU. Moreover, limiting oxygen index (LOI) of RPU increased with increasing HPHPCP, and LOI of RPU-30%HPHPCP was 27%.