大豆油经环氧化制成环氧大豆油(ESO)，将ESO和9，10-二氢-9-氧杂-10-磷杂菲-10-氧化物(DOPO)为原料，经开环反应，合成植物油基含磷阻燃增塑剂DOPO-ESO。并通过傅里叶变换红外谱图和核磁共振氢谱确认了其结构，以热重分析和氧指数测定仪分析了其热失重行为、阻燃性能。研究了DOPO-ESO用量对PVC体系力学性能的影响。结果表明，当其用量为40%时，PVC体系具有良好的力学性能，增塑效果与ESO相当；而极限氧指数从22.3%上升到了37.3%，说明该产物可有效地改善PVC增塑体系的阻燃性。%The vegetable oil-based flame retardant plasticizers DOPO-ESO was synthesized by ESO got by soybean oil epoxidation and 9,10-dihydro-9-oxa-phosphaphenanthrene-10-oxide (DOPO) as raw material through ring-opening reaction. The structure was confirmed by fourier transform infrared spectra and nuclear magnetic resonance hydrogen spectrum,thermo-gravimetric behavior andflame retardant properties were analyzed by thermal gravimetric analysis and oxygen index tester. The dosage of DOPO-ESO was studied on the mechanics performance of PVC systems. The results show that when the amount of DOPO-ESO reach 40%,PVC system has remarkable mechanical properties,and the effect of plasticizing is similar to ESO. While the limiting oxygen index rise from 22.3% to 37.3%,indicating that the product is effective to improve theflame retardancy to PVC plastisol system .
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