Structure and properties of the special random copolymer of propylene(PPR) for pipe were studied by NMR,XRD,DSC and GPC and compared with imported samples.
英
美
- 采用核磁共振(NMR)、X衍射仪、差示扫描量热法(DSC)、凝胶渗透色谱(GPC)等分析技术对无规共聚聚丙烯(PPR)管材专用料的结构和性能进行研究,并且与国外料进行了对比。