Epoxy resin having solvent resistance, mechanical strength, electrical insulation properties and dimensional stability, and ease of processing, has been widely used in coatings, electrical insulating materials, printed circuit laminates and electronic packaging materials, civil engineering and construction materials, adhesives as well as the aerospace industry and other purposes. However, heat-resistant epoxy poor general nature and easy to burn, is the application of its main drawback. In recent years, with the booming electronics industry, the demand for flame and heat resistant epoxy increasingly elevated, so how to improve the flame and heat resistant properties of epoxy has become a very important research topic.

 

There are many methods have been used to enhance the flame retardant properties of the epoxy resin, which is a possible flame retardants introduced the structure of the compound or the epoxy curing agent, but the most used is a halogen-containing flame retardants , although there is considerable for suppressant effect, but will produce a corrosive hydrogen halide and toxicity, and increasingly strict regulations in flame rise of environmental awareness, the halogen-containing flame retardants have come to be disabled, so the new flame retardants The development is the key to the development of current technology. Phosphorus-based flame retardant has low toxicity, good workability, add less, low smoke emission and good compatibility with resin, etc., is the recent trend of development.