Analysis of Rubber Blending Ratio and Silica Loading Level of Compound by NMR Longitudinal Relaxation Time
ZHU Shudong;FENG Ming;ZHOU Bing;ZHANG Lijie;Shandong Linglong Tire Co.Ltd;
In this study,the longitudinal relaxation time(t_1) in nuclear magnetic resonance(NMR) test of Compound was used to characterize the rubber blending ratio and the silica loading level. The test results of t_1 for different rubber,un-vulcanized or vulcanized rubber filled with different amount of silica or carbon black showed that different rubber possessed different t_1 value;for the same rubber material,t_1 was extended with the increase of test temperature;and the t_1 value of the vulcanized rubber showed strong correlation with the rubber blending ratio and silica loading level. It provided a novel rapid quantitative method to analyze the rubber blending ratio and the silica loading level in the vulcanized rubber.
【CateGory Index】： TQ330.1;O482.532