摘要
采用力学性能测试、扫描电镜、红外光谱(FT-IR)等方法研究了硬质聚氯乙烯的热老化性能.结果表明:随着热老化时间的增加,试样表面颜色逐渐变深,其拉伸强度变化不大,断裂伸长率呈先快速后平缓下降.
The heat aging properties of rigid PVC are studied by means of mechanical properties test, SEM and FT-IR. The results show that, with the increase of heat aging time, the color of sample surface turns dark gradually, and the tensile strength changes a little. The elongation at break of rigid PVC sample decreases fast at first and then slowly.
出处
《西南民族大学学报（自然科学版）》
CAS
2009年第3期559-561,共3页
Journal of Southwest Minzu University(Natural Science Edition)
基金
国家自然科学基金项目资助(项目编号:50533080)
