高熔体强度聚丙烯的制备

Preparation of High Melt Strength Polypropylene

高熔体强度聚丙烯是聚丙烯改性研究的重要产品之一。产品具有较高的熔体强度和优异的物理机械性能,拓宽了聚丙烯的应用范围。本文综述了国内外高熔体强度聚丙烯的制备方法,包括射线辐射法、直接聚合法、反应挤出法、共混改性及交联技术。

High melt strength polypropylene was one of important product of polypropylene（PP） modification,which had a higher melt strength and excellent physical and mechanical properties,so that there was wide application for it.The preparation methods of high melt strength（HMS） PP were reviewed,such as ray irradiation,direct polymerization,reactive extrusion,mixing modification,and cross linking modification.