聚合法制备无卤阻燃尼龙的研究进展

在全球阻燃材料无卤化的推进过程中,氮系、磷系、硅系等阻燃剂以及其复配物受到各国研究人员的广泛关注。利用聚合法(原位聚合法和共聚法)制备阻燃尼龙,可有效解决共混法中常存在的阻燃剂在基体中分散不均匀而导致的材料性能下降的问题。原位聚合法和共聚法是根据阻燃成分在基体中的存在方式而区分的,通常前者以物理均匀分散为主,后者多以化学键结合。本文在不同制备方法的背景下,根据阻燃剂类别进一步细分,综述了用原位聚合法和共聚法制备无卤阻燃尼龙的相关研究,并探讨了该领域中亟待解决的问题及未来发展方向。

Research Progress in Preparation of Non-Halogen Flame Retardant Nylon by Polymerization

With the progressing of halogen-free flame retardant (FR) materials globally, the nitrogen-containing FR, phosphorus-containing FR, silicone-containing FR, etc. and their derivatives have attracted much attention. And by polymerization (in-situ polymerization and copolymerization) , the problems existed in blending method that flame retardants disperse unevenly in the matrix and resulting performance reduction can be resolved effectively. In-situ polymerization and copolymerization are usually distinguished by the way how retardant component dispersed in the matrix. Commonly, the former is mainly physically dispersed in the matrix, while the latter is chemically bonded to the matrix. In this paper, under the premise of different preparation methods, flame retardants can be subdivided according to their categories, and the related researches on the preparation of non-halogen flame retardant nylon by in-situ polymerization and copolymerization are reviewed. The current problems and the future direction in this field are also discussed.