Research progress of self-catalyzed phthalonitrile resin
Phthalonitrile resin is a kind of thermosetting resin with excellent comprehensive properties,which has a wide range of application requirements in the field of harsh environments such as aerospace,shipbuilding and electronic packaging.However,the curing of phthalonitrile resin itself is very slow,and designing and synthesizing the molecular structure of self-catalyzed phthalonitrile resin is an effective solution.In this paper,self-catalyzed phthalonitriles were divided into nine categories,such as phenolic hydroxyl group,amino group,secondary amine,Schiff base,imidazole,benzoxazine,alkane,maleimide and free radical.The research progress of different types of resins in recent years was reviewed,and the development trend of self-catalyzed phthalonitrile resin in the future was prospected.
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