Abstract
AbstractTodays fire retardant plastics for high strength FRP (fibre‐reinforced polymers) or electronic devices (printed circuit boards, PCB) are based on brominated epoxy resins (EP resins). The smoke gases of this resins are highly toxic and corrosive. A new class of fire retardant duroplastics, based on dihydrobenzoxazines, doesn't contain halogen, sulfur or phosphor. Processibility is equal to that of thermosetting epoxy resins. Mechanical and electrical properties are equal to brominated epoxy resin, heat resistance is considerably enhanced (glass temperature 180 ‐ 280 °C), while density, toxicity and corrosivity of smoke are very low.
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