摘要
采用热失重等方法研究了有机钙锌热稳定剂在硬质PVC中的热稳定性,考察了其与不同辅助热稳定剂的协效作用。结果表明:与硬脂酸钙锌、低铅热稳定剂相比,有机钙锌热稳定剂明显延长了PVC变色的时间;β-二酮与有机钙锌热稳定剂的协效性较好;在空气和氮气2种气氛下,有机钙锌热稳定剂对PVC的热稳定性无明显变化。
Thermal stability of the organic heat stabilizer with Ca/Zn in PVC was investigated by means of thermogravimetry,and the synergistic effect of different auxiliary heat stabilizers were studied.The results showed that the organic heat stabilizer with Ca/Zn was more effective than the stabilizers with low Pb and Ca/Zn stearate for color changing time of PVC.The synergistic effect of β-diketone was the best and thermal stability of heat stabilizer in PVC with oxygen present was almost the same as that with nitrogen present.
出处
《青岛科技大学学报（自然科学版）》
CAS
2010年第2期169-172,共4页
Journal of Qingdao University of Science and Technology:Natural Science Edition
