含磷阻燃水性聚氨酯乳液的制备及其性能研究

Study on Properties and Preparation of Phosphorus-containing Flame Retardant Waterborne Polyurethane Emulsion

摘要:

以9，10-二氢-9-氧杂-10-磷杂菲-10-氧化物（DOPO)和顺丁烯二酸酐(MAH)为原料合成含磷单体DOPOMA,将其与二元酸，二元醇进行缩聚反应，得到侧链含磷的端羟基饱和聚酯二元醇，再将其与TDI反应、二羟甲基丁酸和一缩二乙二醇扩链、三乙胺中和得到含磷阻燃水性聚氨酯。采用红外光谱分析、热重分析、极限氧指数（LOI）、扫描电子显微镜（SEM）等测试手段对含磷高聚物的结构、热稳定性、成炭能力等进行了分析。结果表明：随着P含量的增加，LOI和残炭率逐渐增大。

Abstract:

:DOPOMA was synthesized by 9,10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide(DOPO) and maleic anhydride(MAH), then it with dicarboxylic acids and diols by polycondensation reaction to get the side chain phosphorus hydroxyl-terminated saturated polyester, then it with TDI, DMBA and DEG as chain extenders,TEA as neutralizer to synthesis phosphorus flame retardant waterborne polyurethane. Chemical composition, thermal stability, charring performance, morphology and mechanical properties of phosphorus-containing polymer were investigated by Infrared analysis(FT-IR), Thermogravimetric analysis(TGA), Limiting oxygen index (LOI), Scanning electron microscope (SEM), universal tensiletest machine.