聚丙烯Ziegler-Natta催化剂结构和聚合性能小试研究  

Study on Structure and Polymerization Performance of Ziegler-Natta Catalyst for Polypropylene

作　　者：杨玮婧 王健 李倩[3] 黄河 李磊 YANG Wei-jing;WANG Jian;LI Qian;HUANG He;LI Lei(Institute of Coal Chemical and Industry Technology,Ningxia Coal Co.Ltd,China Energy,Yinchuan 750411,Ningxia,China;Olefi nΙBranch,Ningxia Coal Co.Ltd,China Energy,Yinchuan 750411,Ningxia,China;Key Laboratory of Engineering Plastics,Institute of Chemistry,Chinese Academy of Sciences,Beijing National Laboratory for Molecular Sciences,Beijing 100190,China)

机构地区：[1]国家能源集团宁夏煤业公司煤炭化学工业技术研究院,宁夏银川750411 [2]国家能源集团宁夏煤业公司烯烃一分公司,宁夏银川750411 [3]中国科学院化学研究所工程塑料院重点实验室北京分子科学国家实验室,北京100190

出　　处：《合成材料老化与应用》2022年第1期50-52,共3页Synthetic Materials Aging and Application

基　　金：宁夏煤基合成树脂高值化产业技术协同创新中心项目(2017DC57)。

摘　　要：考察了四种聚丙烯催化剂的结构和聚合性能。研究表明,四种催化剂都呈现类球型结构且分散均匀。1#催化剂的粒径最小,在聚合过程中会造成较多细粉;2#催化剂的粒径最大,其制备聚丙烯的粒径也最大。在相同聚合条件下,3#催化剂的聚合活性最低,2#催化剂的氢调敏感性最好,四种催化剂的氢调敏感性顺序为2#>1#>3#>4#。The structure and polymerization performance of Ziegler-Natta catalyst for polypropylene were investigated.The results showed that the four catalysts had spherical like structure and uniform dispersion.The particle size of 1#catalyst was the smallest,which will cause more fine powder in the polymerization process.Correspondingly,the particle size of 2#catalyst was the largest,and the particle size of polypropylene was also the largest.Under the same polymerization conditions,3#catalyst had the lowest polymerization activity and 2#catalyst had the best hydrogen regulation sensitivity.The order of hydrogen regulation sensitivity of the four catalysts was 2#>1#>3#>4#.

关 键 词：ZIEGLER-NATTA催化剂 粒径 聚合活性 氢调敏感性 

分 类 号：TQ325.1[化学工程—合成树脂塑料工业]