PVC给水管材用钙锌复合热稳定剂的研制.pdf

年第期总第期塑料助剂
2008 6 ( 72 ) 29
给水管材用钙锌复合热稳定剂的研制
PVC
侯典军刘建龙孙刚瑞
山东华信塑胶有限公司阳谷
( , , 252323)
摘要将硬脂酸锌、硬脂酸钙与稀土热稳定剂硬脂酸镧及辅助热稳定剂复配成钙锌复合热稳定
剂。通过动态热稳定试验,确定了最佳钙/锌复合热稳定剂与稀土热稳定剂质量比。通过动态热稳定试验
及刚果红热稳定试验,确定辅助热稳定剂β-二***的最佳用量,用研制的钙锌复合热稳定剂与国外同类产
品进行了对比试验。结果表明,自制的热稳定剂具有热稳定时间长、塑化时间短的优点,将此热稳定剂用
于 PVC 给水管材中,管材性能检测结果表明,管材质量符合国标 GB/-2006 的要求。
关键词聚***乙烯给水管钙/ 锌复合热稳定剂稀土热稳定剂β-二***
Research and Production of Ca/pound Heat Stabilizer for PVC Feed Water Pipe
Hou Dian-jun Liu Jian-long Sun Gang-rui
(Shandong Huaxin Plastics Co. Ltd., Yanggu, 252323)
Abstract: A Ca/pound heat stabilizer was made by calcium (Ca) stearate, Zinc (Zn) stearate, lan-
thanum (La) stearate and secondary stabilizers. The mass ratio of Ca/Zn stearate to La stearate was determined
by dynamic heat stabilization tests. The optimum content of costabilizer La stearate in the heat stabilizer was
determined by dynamic heat stabilization tests and congo red tests. This stabilizer pared to one from
abroad by tests, the results showed that the former is better than the latter in longer heat stabilization time and
shorter plasticization time. Applied it in PVC feed water pipe, the specification of the pipe is meeted the re-
quirements of national standard GB/T 1002. 1-2006.
Keywords:polyvinyl chloride; feed water pipe; Ca/pound heat stabilizer; rare-earth heat stabilizer;
β-diketone
卫生部标准生活饮用水输配水设备及防护水白化现象此外由于我国