FACTORS WHICH AFFECT THE MECHANICAL AND PHYSICOMECHANICAL PROPERTIES OF AN ISOBUTYLENE ISOPRENE RUBBER LOADED WITH CARBON-BLACK

被引：2

作者：

ABOHASHEM, A ^{[1
]}

SATTAR, AA ^{[1
]}

ELSHOKROFY, KM ^{[1
]}

机构：

[1] MENOUFIA UNIV,FAC ENGN,MENOUFIA,EGYPT

来源：

POLYMER DEGRADATION AND STABILITY | 1992年 / 36卷 / 01期

关键词：

Elastic Modulus - Isobutylene Isoprene Rubber - Physicomechanical Properties - Rubber Vulcanizates - Tensile Strength;

D O I：

10.1016/0141-3910(92)90042-4

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 effect of carbon concentration and time of vulcanization on the elastic modulus (E kg cm-2) and the tensile strength (tau kg cm-2) of isobutylene-isoprene rubber (IIR) loaded with HAF (N375) carbon black have been investigated. It has been found that there is an optimum concentration at which E and tau attain their maximum values. The effect of vulcanization time is to reduce the optimum concentration at which tau attains its maximum value. The effect of time of vulcanization and thermal ageing on the variation of the electrical resistivity (rho) with strain for IIR loaded with different concentrations of HAF(N375) have also been studied. An increase in vulcanization time does not affect the behaviour of the change of rho with strain, but does decrease the value of rho. Also, thermal ageing increases the value of rho for all concentrations and affects the dependence of rho on strain especially for intermediate concentrations.

引用

页码：5 / 8

页数：4