摘要
采用苯酚、2,4–二叔丁基苯酚和2,6–二叔丁基苯酚对传统钛系Ziegler-Natta催化剂进行改性,并进行了物性分析,考察了催化剂的均聚性能、氢调敏感性能、聚合动力学行为、乙烯与1–己烯以及乙烯与1–丁烯的共聚合性能。结果表明:通过酚类化合物改性后的催化剂钛含量较低,且比表面积较高,催化剂粒子呈类球形,径距更加集中,以2,6–二叔丁基苯酚改性的催化剂效果最佳。
Conventional Ziegler-Natta catalysts were modified with phenol,2,4-di-tert-butylphenol and 2,6-di-tert-butylphenol. The physical properties of the catalysts were analyzed as well as the homopolymerization performance,hydrogen response ability,polymerization kinetics,copolymerization of ethylene and 1-butylene as well as copolymerization of ethylene and 1-hexene. It was found that the content of titanium in catalyst modified by phenol compounds is decreased,and the spherical catalysts have larger specific surface area and more centralized radius-center distance ratio. The catalyst modified by 2,6-di-tert-butylphenol performs best.
作者
高金龙
邢照亮
张翀
姜增鸿
颜廷利
姜涛
Gao Jinlong;Xing Zhaoliang;Zhang Chong;Jiang Zenghong;Yan Tingli;Jiang Tao(College of Chemical Engineering and Material Science,Tianjin University of Science & Technology,Tianjin 300457,China;State Key Laboratory of Advanced Transmission Technology,Global Energy Internet Research Institute,Beijing 102211,China;State Grid Laiwu Power Supply Company,Laiwu 271100,China)
出处
《合成树脂及塑料》
CAS
北大核心
2019年第3期8-11,17,共5页
China Synthetic Resin and Plastics
基金
国家重点研发计划项目(2017YFB0306703)
高压直流输电用大容量薄膜介质电容器关键技术研究(SGRIDGKJ[2017]634)
关键词
齐格勒-纳塔催化剂
酚类化合物
乙烯
共聚
Ziegler-Natta catalyst
phenolic compound
ethylene
copolymerization