基于T1-T2*弛豫相关的聚氨酯橡胶相态结构和动力学特征

郭江峰,MACMILLAN Bryce,BALCOM Bruce

Insights into the Phase Structure and Dynamics of Polyurethane Rubber Using T1-T2* Relaxation Correlation

GUO Jiangfeng,MACMILLAN Bryce,BALCOM Bruce

表2 基于T1-T2*谱测量的40A、80A和75D聚氨酯橡胶T1、T2*及信号积分强度

Table 2 T1 and T2* values, and signal intensity integrals of 40A, 80A, and 75D PURs based on T1-T2* spectra

PUR样品 信号I 信号II 信号III 总信号强度 T1/ms T2*/μs 信号强度 T1/ms T2*/μs 信号强度 T1/ms T2*/μs 信号强度 40A 360 18 2.60×105 360 39 7.40×105 323 121 3.08×105 1.31×106 80A 323 20 4.03×105 335 38 6.81×105 301 106 2.20×105 1.30×106 75D 217 20 1.07×106 234 46 2.88×105 225 167 1.61×105 1.52×106