The characteristic groups of polymeric pour point depressant(PPD)were analyzed by FT-IR and NMR techniques. The crystallization properties of various types of wax and PPD were measured by XRD.
采用红外光谱仪、 核磁共振波谱仪对聚合物的合成特征基团进行了表征,并采用X射线衍射仪对不同型号蜡及降凝剂的结晶性能进行了分析测试。
The characteristic groups of polymeric pour point depressant(PPD)were analyzed by FT-IR and NMR techniques. The crystallization properties of various types of wax and PPD were measured by XRD.
采用红外光谱仪、 核磁共振波谱仪对聚合物的合成特征基团进行了表征,并采用X射线衍射仪对不同型号蜡及降凝剂的结晶性能进行了分析测试。
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