| Ziegler-Natta/茂金属复合催化剂中茂金属组分的休眠及对聚丙烯合金性能的影响 |
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| 引用本文： | 刘小燕,朱博超,贾军纪,张平生,王丹丹.Ziegler-Natta/茂金属复合催化剂中茂金属组分的休眠及对聚丙烯合金性能的影响[J].石化技术与应用,2011,29(1):40-44. |
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| 作者姓名： | 刘小燕 朱博超 贾军纪 张平生 王丹丹 |
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| 作者单位： | 中国石油兰州化工研究中心,甘肃,兰州,730060 |
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| 基金项目： | 汽车用聚烯烃材料单一化关键技术(国家863项目):聚丙烯釜内合金千吨级中试研究Ⅰ(项目编号:2008AA030902) |
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| 摘 要： | 制备出了以二醚为内给电子体的Ziegler-Natta(Z-N)催化剂及Z-N/茂金属(Z-M)复合催化剂。研究了催化剂类型(Z-N或Z-M)、休眠剂类型(苯乙烯(St)或对甲基苯乙烯(pMS))及用量对聚合过程、中间产品(均聚聚丙烯(PP))和最终产品(PP釜内合金)性能的影响,还利用扫描电子显微镜观测了PP釜内合金粒子的形貌。结果表明:St是比pMS更适宜的休眠剂;在保证使Z-M复合催化剂中茂金属组分充分休眠的前提下,应尽可能降低休眠剂的加入量;在St休眠剂存在下使用Z-M复合催化剂可制得23,-30℃抗冲击强度分别为47,5.6 kJ/m2的高刚高韧PP合金。
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| 关 键 词： | 聚丙烯 釜内合金 Ziegler-Natta催化剂 茂金属催化剂 复合催化剂 休眠剂 |
Dormancy of metallocene component in Ziegler-Natta catalyst/metallocene composite catalyst and its effects on properties of polypropylene catalloy |
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| Liu Xiaoyan,Zhu Bochao,Jia Junji,Zhang Pingsheng,Wang Dandan.Dormancy of metallocene component in Ziegler-Natta catalyst/metallocene composite catalyst and its effects on properties of polypropylene catalloy[J].Petrochemical Technology & Application,2011,29(1):40-44. |
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| Authors: | Liu Xiaoyan Zhu Bochao Jia Junji Zhang Pingsheng Wang Dandan |
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| Affiliation: | Liu Xiaoyan,Zhu Bochao,Jia Junji,Zhang Pingsheng,Wang Dandan(Lanzhou Petrochemical Research Center,PetroChina,Lanzhou 730060,China) |
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| Abstract: | Traditional Ziegler-Natta(Z-N) catalyst with diethers as internal electron donor and Zigler-Natta catalyst/metallocene(Z-M) composite catalyst were prepared.The effects of catalyst species,dormant agents and their level on polymerization process and properties of intermediate product(homopolypropylene) and final product(polypropylene catalloy),and the morphology of the catalloy was observed by scanning electron microscopy.The results showed that as a dormant agent,styrene was better than p-methylstyrene,and... |
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| Keywords: | polypropylene catalloy Ziegler-Natta catalyst metallocene catalyst composite catalyst dormant agent |
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