首页|乙丙共聚Ziegler-Natta钒系催化体系活化剂研究进展

乙丙共聚Ziegler-Natta钒系催化体系活化剂研究进展

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乙丙橡胶钒系催化体系因其所制备产品序列分布均匀、结晶度低、组成分布较窄等优势,广泛应用于国内外乙丙橡胶生产企业.然而,钒系催化剂存在热稳定性差、活性中心寿命短、催化剂失活较快等问题,极大地降低了催化效率,提高了生产成本.为了实现降本增效,利用活化剂使得已经失活的钒系催化剂再活化,是工业上提高乙丙橡胶钒系催化剂活性的主要手段.本文综述了活化剂在国内外乙丙橡胶钒系催化体系应用方面的研究进展以及活化剂的加入对乙丙共聚反应活性以及所制备乙丙橡胶性能的影响,总结了活化剂在钒系催化体系中的活化机理.
Research progress on activators for ethylene-propylene copolymerization using ziegler-natta vanadium catalytic systems
The vanadium catalytic system for ethylene-propylene rubber is widely used in domestic and international ethylene-propylene rubber production enterprises due to its advantages such as uniform product sequence distribution,low crystallinity,and narrow composition distribution.However,this catalytic system faces issues such as poor thermal stability,short active center lifespan,and rapid catalyst deactivation,greatly reducing catalytic efficiency and increasing production costs.To achieve cost reduction and efficiency improvement,the use of activators to reactivate deactivated vanadium catalytic systems is the main method for improving the activity of ethylene-propylene rubber vanadium catalytic systems in industrial applications.This article provides an overview of the activators research progress based on the Ziegler-Natta vanadium catalytic systems of ethylene-propylene copolymerization.The article demonstrated the activator effect on the reactivity of ethylene-propylene copolymerization and the properties of the as-synthesized ethylene-propylene rubber.It also summarized the possible activation mechanism of the activators in vanadium-based catalytic systems.

activatorethylene-propylene copolymerizationvanadium-based catalytic systemZiegler-Natta catalyst

盖方圆、郭扬、董肇勇、熊天赏、宋尚德、杨雨富、孙聚华、王海泉

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长春工业大学材料科学高等研究院,吉林长春 130012

中国石油天然气股份有限公司吉林石化分公司,吉林吉林 132011

活化剂 乙丙共聚 钒系催化体系 Ziegler-Natta催化剂

吉林省科技厅国际合作项目长春市科技局青年科技人才创新创业专项吉林省自然科学基金自由探索项目中国石油吉林石化公司委托技术开发课题

20210402068GH21QC06YDZJ202201ZYTS345F765023F4

2024

弹性体
中国石油天然气股份有限公司吉林石化公司 全国合成橡胶信息总站

弹性体

CSTPCD
影响因子：0.463
ISSN：1005-3174
年,卷(期)：2024.34(3)