Behavior of polysulphide rubber (thiokol A) in organic acid solutions

被引：8

作者：

Baah, CA ^{[1
]}

Baah, JI ^{[1
]}

Gianadda, P ^{[1
]}

Fischer, C ^{[1
]}

机构：

[1] Univ Natal, Sch Chem Engn, ZA-4014 Durban, South Africa

来源：

MATERIALS & DESIGN | 2000年 / 21卷 / 03期

关键词：

thiokol A; chemical resistance;

D O I：

10.1016/S0261-3069(99)00053-9

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

This paper involves the behavior of a polysulphide rubber (thiokol A) in different organic acid solutions. The rubber samples tin acid solutions) were left in a water bath for a period of 1 month, after which time they were taken out, dried and weighed to determine the percentage weight change of the samples over the period. The original acid solutions and the solutions in which the rubber pieces were suspended were then titrated with a standard sodium hydroxide solution and the change in acid strength determined for each. The mass of the thiokol A specimens tested was found to decrease in all cases (mostly greater than a 3% decrease). In terms of the solutions in which the testing took place the pH was found to increase while the molarity showed a general decrease. (C) 2000 Elsevier Science Ltd. All rights reserved.

引用

页码：211 / 215

页数：5