第 36 卷第 4 期 Vol. 36 No. 4 2006 年 8 月 Aug 2006

所属栏目：功能材料 抗氧剂对SBS老化行为研究

周立新(巴陵石油化工有限责任公司合成橡胶事业部; 湖南岳阳)

摘　要：研究了SBS添加不同抗氧体系的热氧老化行为,考察了SBS拉伸强度、扯断伸长率、扯断永久变形、硬度随热氧老化时间的变化规律,结果标明SBS在热氧老化过程中其拉伸强度、扯断伸长率会出现峰值,随后呈下降趋势,而SBS的扯断永久变形呈上升趋势,硬度则渐渐下降。选择抗氧体系对SBS抗热氧老化性能影响显著。

关键词：SBS; 热氧老化; 抗氧体系

中图分类号：TQ330.1+4　　文献标识码：A　　文章编号：1009-9212(2006)04-0046-02

Effect of Complex Antioxidants on Aging Property of SBS

ZHOU Li-xin （Synthetic Rubber Plant Baling Petrochemical Co.; Ltd.; Yueyang 414014; China）

Abstract：The effect of different antioxidants on thermal aging property of SBS was studied in this article. Change of tensile strength,elongation at break, permanent set and hardness of SBS with the aging time were investigated. The results showed that the tensile strength and elongation at break would reach a peak,and then began to fall,but the permanent set began to rise,and the hardness fell down gradually. The choice of antioxidant had a remarkable effect on the aging property of SBS.

Key words：SBS; thermal aging; antioxidant system

收稿日期：2006-06-26

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