采用移动核磁共振仪(MObile Universal Surface Explorer,NMR-MOUSE)快速、非侵入地检测聚乙烯(PE)粉料和管材料的聚集态结构。NMR-MOUSE仅需几秒钟就可以完成聚集态结构检测。本文首先建立了CPMG序列数据分析方法,用于描述PE的结晶相含量、无定形相含量、界面相含量以及各相区的横向弛豫时间,进而用于分析相同牌号不同厂家的PE粉料聚集态结构中各相区的的微小差异以及受力变形的PE管材不同位点的聚集态结构。结果表明,基于表征各相区链段运动性差异的NMR-MOUSE可实现PE聚集态结构的在线检测。 Aggregate structures of polyethylene (PE) powder and tube materials were quickly, non-invasively detected using a MObile Universal Surface Explorer (NMR-MOUSE). NMR-MOUSE in just a few seconds to complete the detection of aggregated structure. In this paper, CPMG sequence data analysis method is firstly established to describe the crystalline phase content, amorphous phase content, interphase phase content and transverse relaxation time of each phase of PE, and then used to analyze PE powder aggregation of different manufacturers with the same grade State structure of each phase of the small differences and deformation of the PE pipe at different sites of aggregated state structure. The results show that online detection of PE aggregated structures can be achieved based on NMR-MOUSE, which characterizes the mobility of segments in each phase.