As a new type of thermosetting resin,benzoxazine has the characteristics of rich source of raw materials,flexible molecular design,high modulus,high strength and low shrinkage of parts.With the increasing demand for high performance and functionality of materials in application fields,traditional benzoxazine resins have been unable to meet the needs.The fine design and functional research of benzoxazine resins has become one of the important research directions,which has important theoretical significance and practical application value.The research progress in the modification of benzoxazine resins was focused in terms of heat resistance,flame retardancy and dielectric properties in recent years.The main problems in the modification of benzoxazine resins were put forword,and prospected the development prospects of the functionalization of benzoxazine resin.
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