有机低铅稳定剂XW-1在PVC中的热稳定性

Study on the Effects of PVC Stabilizer(XW-1) with Alow Pb Content on PVC Properties

研究了新型有机低铅稳定剂XW-1在硬质PVC中的热稳定性,考察其与不同辅助稳定剂的协效作用。结果表明:与铅盐、Ca/Zn稳定剂相比,XW-1明显抑制了PVC的初期着色,提高了其色泽稳定性;XW-1与亚磷酸酯、β-二酮、环氧大豆油复配明显提高了PVC的热稳定性,协效作用明显。

The effects of new PVC stabilizer （XW-1） with a low Pb content on PVC properties were studied. It was found that the XW-1 is more effective on depressing the color change of PVC material than the stabilizers with Pb and Ca/Zn salt. The combinations of phosphite antioxidant, β-diketone and epoxidized soybean oil with XW-1 would further improve the thermal stability of PVC materials.