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As environmental regulations become increasingly stringent and the demand for safety in electronic and electrical products continues to rise, the "halogen-free" technology for flame-retardant insulating materials has emerged as the mainstream direction in industry development. Compared to traditional halogenated flame-retardant materials, halogen-free flame-retardant insulators do not release toxic or harmful gases when burned, while still delivering outstanding insulation performance. They can be widely used in areas such as household appliances and rail transportation.
Industry technical engineers state that the core technology of halogen-free flame-retardant insulation materials lies in the design of the flame-retardant system. Currently, the mainstream halogen-free flame retardants primarily include inorganic options such as magnesium hydroxide and aluminum hydroxide, as well as organic flame retardants like phosphorus-based and nitrogen-based compounds. By combining inorganic and organic flame retardants and integrating them with modified material matrices, it’s possible to achieve a balanced performance between flame retardancy and mechanical strength. For instance, when applied in wire and cable insulation layers, these halogen-free flame-retardant materials can deliver an oxygen index exceeding 35% and a breakdown voltage surpassing 20 kV/mm—fully meeting international safety standards. Moreover, halogen-free flame-retardant insulation materials also boast the advantage of being recyclable, aligning perfectly with the principles of green manufacturing. As a result, market demand for these materials is expected to continue growing in the future.