六（烯丙氧基）环三磷腈的合成及其在不饱和聚酯片状模塑料中的阻燃应用

以六氯环三磷腈（HCCP）、烯丙醇为原料，合成出含不饱和键的新型磷腈阻燃单体六（烯丙氧基）环三磷腈（HACP），用傅里叶红外光谱、质谱、核磁氢谱和元素分析表征其结构。采用自制的HACP作为阻燃剂，将其应用于不饱和聚酯片状模塑料中，通过极限氧指数、扫描电子显微镜及力学性能测试研究了HACP对不饱和聚酯片状模塑料的阻燃性能及力学性能的影 响。结果表明，当HACP用量为15 ％ 时，不饱和聚酯片状模塑料的极限氧指数为36.0 ％，燃烧等级（UL 94）达到V-0级，残炭率提高，弯曲强度为214.63MPa，冲击强度为106.23 kJ/m2。

Synthesis of Hexallyloxycyclophosphazene and Its Application in Sheet Molding Compounds of Unsaturated Polyester

A novel unsatursate cyclophosphazene, hexallyloxy-cyclophosphazene（HACP）was synthesized from hexachlorocyclotriphosphazene（HCCP）and allyl alcohol, with irs structure characterized by FTIR, MS, 1H-NMR, and elemental analysis. The obtained HACP was introduced as a flame retardant into sheet molding compounds of unsaturated polyester, the effect of HACP on the flame retardancy and mechanical properties was researched by limiting oxygen index, scanning electron microscopy, etc. It was found that, with the addition of 15 %HACP, the limiting oxygen index valve of the unsaturated polyester was increased to 36.0%, and the flammability class reached V-0. The carbon residue was increased. The bending strength was 214.63 MPa, and the impact strength was 106.23 kJ/m2.