钙锌稳定剂在PVC中的应用进展

Application Development of Calcium and Zinc Stabilizer in PVC

本文介绍的环保型钙锌稳定剂是一种应用广阔的热稳定剂，选择合适的钙锌配比可以达到最大的协同效果，使PVC获得较好的初期着色性和长期稳定性。除了硬脂酸钙／硬脂酸锌体系外，其他有效的有机钙锌体系也被开发出来。辅助热稳定剂的加入能提高钙锌稳定剂的热稳定效果。

Environment-friendly calcium and zinc stabilizer is a widely used heat stat）luzer. ~ l~ propriate ratio of calcium and zinc can achieve the best synergistic effect so as to make PVC obtain good initial coloring stability and long- term stability. Besides calcium stearate/zinc stearate system, other effective organic calcium and zinc systems have also been developed. The addition of auxiliary heat stabilizers can improve the thermal stability of calcium and zinc stabilizer.