THE REACTOR GRANULE TECHNOLOGY: THE ULTIMATE EXPANSION OF POLYPROPYLENE PROPERTIES?
THE REACTOR GRANULE TECHNOLOGY: THE ULTIMATE EXPANSION OF POLYPROPYLENE PROPERTIES?
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DOI：
10.1081/ma-100101615
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发表时间：
1999-11
期刊：
影响因子：
--
通讯作者：
P. Galli
中科院分区：
文献类型：
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作者：
P. Galli
催化剂性能和加工技术的进步使PP性能的不断扩展成为可能。以氯化镁为载体的催化剂的发现及其可控球形形态的发展，给催化体系的性能带来了一场真正的革命。通过对母体催化剂产生的聚合物的“复制”现象的全面控制，催化剂化学方面的一系列决定性改进和聚合物生产率的显著提高得以实现。反应器颗粒技术在为新应用和新市场开发新的聚合物性能，以及开发对环境影响最好的新的经济和多功能工艺技术方面产生了相关的后果。通过这一技术，还可以将非均相Ziegler-Natta催化剂与均相催化剂如自由基引发剂、茂金属和单位催化剂结合起来使用，这是一种可能的结果。
The progresses obtained in both catalyst performances and process technologies have made the continuous expansion of PP properties possible. The discovery of MgCl2-supported catalysts and the development of their controlled spherical morphology produced a real revolution in the catalytic-system performances. A series of definitive improvements in catalyst chemistry and an impressive increase in polymer productivity were allowed by the total control of the “replication” phenomenon of polymer generated by the parent catalyst. The Reactor Granule Technology started up with relevant consequences in terms of development of new polymer properties for new applications and new markets, and of new economic and versatile process technologies with the best environmental impact. Through this technology, it is also possible to use a mixed catalysis combining the heterogeneous Ziegler-Natta catalysts with homogeneous catalysts such as radicalic initiators, metallocenes and single site, and this possibility results in a...