聚苯乙烯阳离子交换树脂碳化产物的X射线衍射分析  

X-ray Diffraction Analysis of Carbonization Products of Polystyrene Cation Exchange Resins

作　　者：汪树军[1] 刘红研[2] 

机构地区：[1]石油大学重质油加工国家重点实验室,北京102200 [2]石油大学(北京)化工学院,北京102200

出　　处：《分析测试学报》2002年第3期17-20,共4页Journal of Instrumental Analysis

基　　金：国家重大基础研究资助项目(G2000026409);石油大学基础研究基金资助项目(ZX9902)

摘　　要：用X射线衍射法分析了聚苯乙烯阳离子交换树脂碳化产物石墨化度和微观结构参数 ,结果表明聚苯乙烯阳离子交换树脂在1000℃以下碳化处理的样品 ,石墨化程度都很低 ,属于在中低温条件下较难石墨化处理的树脂样品 ;H型树脂碳化产物的晶面层间距随着碳化处理温度升高而依次减小 ,并且 (002)晶面层间距减小速度快于 (100)晶面 ;H型树脂在低温碳化处理条件下 ,主要是在二维平面结构上演变成石墨微晶 ,只有碳化处理温度较高时 ,平面结构的石墨微晶才相互调整 ,形成纵向平行有序的微晶体 ;树脂掺杂金属离子后 ,有利于树脂在碳化过程中形成的石墨微晶层片纵向有序排列 ;掺杂不同金属离子的树脂碳化样品 。The graphitization degree and microstructure parameters of carbonization products derived from polystyrene cation exchange resins were determined by X _ ray diffraction. The results indicated that polystyrene cation exchange resin at moderate temperatures belongs to the type of resins that are relatively hard to be graphitized, because the graphitization degree of the carbonized samples treated below 1 000 ℃ was relatively low. The interlayer distance of graphite microlites in carbonized H _ type resin diminished as temperature increased. Furthermore, the interlayer distance between (002) lattice planes diminished faster than that between (100) planes. During low temperature treatment of the H _ type resin, graphite microlites were evolved mainly in the two _ dimensional planar structure. Only under higher temperatures, the planar graphite microlites began to adjust one after another to form three _ dimensional vertically ordered microlites. Doping resin with metal ions favored the formation of ordered planar microlites along the vertical direction during resin carbonization. And the structure parameters of carbonized samples derived from doped resins apparently were different from those of the non _ doped H _ type resin.

关 键 词：聚苯乙烯 阳离子交换树脂 碳化产物 X射线衍射分析 离子膜燃料电池 碳材料 

分 类 号：TM911.4[电气工程—电力电子与电力传动] TM2[一般工业技术—材料科学与工程]