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过去对高聚物静态粘弹性能研究得较多,如Scott Blair(1945)等所用的蠕变及应力松弛法,Dillon(1933)的压缩塑性计,以及Mooney(1936)所用的转筒式粘度计等都是用静态的方法来研究高聚物的粘弹性。对高聚物来说:对温度及频率的响应存在弹性弥散,在弹性弥散区域伴随弹性模量骤急的改变出现內耗的峯值,通过对內耗峯的研究可深入了解其內部结构,此外在高聚物作为材料的实际应用中往往是在动态的情况下使用的,因而对高聚物动态粘弹性的研究不论在理论上或实用上都有其重要的意义。
In the past, there have been more studies on the static viscoelastic properties of polymers, such as the creep and stress relaxation methods used by Scott Blair (1945), the compression plasticity gauge of Dillon (1933), and the drum viscosity used by Mooney (1936) All are static methods to study the viscoelasticity of polymers. For polymers, there is elastic dispersion in response to temperature and frequency, and peak value of internal friction appears in the elastic diffusion region with the sudden change of elastic modulus. The internal structure of the polymer can be in-depth understood through the study of internal friction peak. In addition, The practical applications of polymers as materials are often used under dynamic conditions. Therefore, the research on the dynamic viscoelasticity of polymers has important meanings both theoretically and practically.