INFLUENCE OF CHEMICAL-COMPOSITION DISTRIBUTION AND THERMAL HISTORY ON THE MECHANICAL-PROPERTIES AND VISCOELASTIC RELAXATIONS OF ETHYLENE-1-BUTENE COPOLYMERS

被引：23

作者：

BENAVENTE, R ^{[1
]}

PERENA, JM ^{[1
]}

BELLO, A ^{[1
]}

PEREZ, E ^{[1
]}

AGUILAR, C ^{[1
]}

MARTINEZ, MC ^{[1
]}

机构：

[1] REPSOL SA,E-28045 MADRID,SPAIN

来源：

JOURNAL OF MATERIALS SCIENCE | 1990年 / 25卷 / 09期

关键词：

D O I：

10.1007/BF00582498

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The tensile drawing behaviour and the dynamic mechanical properties of four ethylene-1-butene copolymers, with nearly the same comonomer content but obtained with slightly different catalyst systems, have been analysed. It was found that the large strain mechanical properties and the strain-hardening behaviour seem to be affected by the degree of homogeneity in the distribution of comonomer along the different chains, reflecting the differences in the catalyst systems used. However, a parallel trend was not so clear for the small-strain dynamic mechanical properties for a particular thermal history, although the dependence of the relaxations on the crystallization conditions is evident. © 1990 Chapman and Hall Ltd.

引用

页码：4162 / 4168

页数：7

共 33 条

[1] UNIAXIAL DRAWING OF A COPOLYTEREPHTHALATE BASED ON ETHYLENE-GLYCOL AND 1,4-CYCLOHEXANE-DIMETHANOL [J].