摘要
对SBR/BR硫化橡胶进行动态仿真实验,考察预应力、加载频率和环境温度对橡胶滞回曲线的影响及损耗因子与频率、温度的关系.结果表明:随着预应力和加载频率的增大,滞回曲线包围的面积增大;随着环境温度的升高,滞后圈所包围的面积有减小的趋势;损耗因子随温度的升高而减小,随频率的增加而增大,低频下黏弹材料的损耗因子随着频率的改变而变化的情况不如高频时显著.
Dynamic property experiments of SBR/BR vulcanizates were carried out by vibration simula- tion. This work focused on the effect of pre-stress, loading frequency, and environment temperature on the hysteretic curves. Moreover, the relationship of the loss factor with the loading frequency and environment temperature was also discussed. The results showed that the area of hysteretic curve increased with the in- creasing of pre-stress and loading frequency; however decreased with the increasing of environmental tem- perature. The loss factor decreased with temperature increasing and increased with frequency increasing. The change of loss factor under high frequency was more obvious than that under low frequency.
出处
《沈阳化工大学学报》
CAS
2012年第2期131-135,共5页
Journal of Shenyang University of Chemical Technology
基金
国家自然科学基金资助项目(51173110
51103086)
辽宁省自然科学基金资助项目(201102173)
关键词
橡胶
滞后圈
损耗因子
rubber
hysteretic loop
loss factor
