聚磷酸铵插层可膨胀石墨对UHMWPE的阻燃  

Flame Retardant Mechanism of Graphite Intercalation Ammonium Polyphosphate Added in UHMWPE

作　　者：刘春林[1] 王琛[1] 吴盾[1] 张刚[1] 朱小磊[1] 

机构地区：[1]常州大学材料科学与工程学院常州市高分子新材料重点实验室,江苏常州213164

出　　处：《高分子材料科学与工程》2013年第3期94-97,102,共5页Polymer Materials Science & Engineering

摘　　要：采用聚磷酸铵(APP)对普通物理膨胀型阻燃剂——硫酸插层的可膨胀石墨(GIC)进行二次插层,得到APP-GIC,将其用于超高分子量聚乙烯(UHMWPE)的阻燃,并对材料的阻燃性能、力学性能、残炭的形态结构进行了研究。实验结果表明,APP-GIC的石墨层间含有APP,采用APP-GIC制备的无卤阻燃UHMWPE的极限氧指数(LOI)达到27.2%、阻燃等级UL94V-0。傅里叶变换红外光谱(FT-IR)和热重分析(TGA)研究表明,APP起到促进成炭的作用。Ammonium polyphosphate （ APP）-graphite intercalation compounds （GIC） were prepared by two-step intercalation method. Non-halogen flame-retardant ultra-high molecular-weight polyethylene （UHMWPF） was prepared by adding APP-GIC. The flame retardant properties, mechanical properties and morphology of the residual charred layer were studied. It is found that the APP-GIC graphite layers contain APP. The LOI of AIP-GIC/ UHMWPE reaches 27.2%, and the flame retardant grade is UL94V-0. Fourier transform infrared spectra（FT IR） and thermogravimetric analysis （TGA） demonstrate that adding APP leads to the much larger residual quantity.

关 键 词：超高分子量聚乙烯 石墨层间化合物 二次插层 膨胀阻燃 

分 类 号：TQ325.12[化学工程—合成树脂塑料工业]