DYNAMIC MECHANICAL-PROPERTIES OF NATURAL-RUBBER VULCANIZATES WITH DIFFERENT CURING SYSTEMS AND STATIC STRAIN

被引：7

作者：

HERNANDEZ, LG

RUEDA, LI

DIAZ, AR

ANTON, CC

机构：

[1] Instituto de Ciencia y Tecnologá de Polímeros (CSIC), 28006 Madrid

来源：

POLYMER | 1992年 / 33卷 / 17期

关键词：

NATURAL RUBBER; DYNAMIC MECHANICAL PROPERTIES; STATIC STRAIN; GLASS TRANSITION; LOSS TANGENT; NETWORK;

D O I：

10.1016/0032-3861(92)90648-G

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

The glass transition temperatures of natural rubber compounds cured with dicumyl peroxide and sulphur were measured on a Metravib Viscoelasticimeter. Tan-delta versus temperature curves of compounds vulcanized with peroxide show two well defined relaxations associated with the glass transition. Compounds cured with sulphur show only one relaxation. Dynamic deformations of small amplitude were superimposed on large static deformations. It was found that the intensity of the loss tangent associated with the glass-rubber transitions tends to decrease with increasing static deformation.

引用

页码：3635 / 3638

页数：4

共 19 条

[1]

ANDREWS EH, 1963, CHEM PHYSICS RUBBER

[2]

[Anonymous], 1980, VISCOELASTIC PROPERT

[3] YOUNG MODULUS OF SEMICRYSTALLINE POLYMERS [J].