INFLUENCE OF VIBRATIONS ON THE VISCOELASTIC BEHAVIOR OF MONODISPERSE POLYBUTADIENES.

被引：0

作者：

Vinogradov, G.V.

Yanovsky, Yu.G.

Isayev, A.I.

Shatalov, V.P.

Shalganova, V.G.

机构：

来源：

Rubber Chemistry and Technology | 1972年 / 45卷 / 04期

关键词：

BUTADIENE - RHEOLOGY - RUBBER TESTING;

D O I：

10.5254/1.3542889

中图分类号：

学科分类号：

摘要：

The viscoelastic behavior of monodisperse polybutadienes is studied at different amplitudes of cyclic deformation. The concept of initial relaxation spectrum is introduced, this spectrum corresponding to small amplitudes. Under the action of high amplitudes the relaxation spectrum changed. This changed-effective spectrum can be calculated by means of the linear theory of viscoelassticity. It is shown that the length of the high-elasticity plateau and the maximum relaxation times of polybutadienes, as well as their initial Newtonian viscosities are dependent on molecular weight to a power of 3. 6. The apparent viscosity is calculated. The results of these calculations were found to agree approximately with the data obtained under conditions of continuous deformation.

引用

页码：1082 / 1093