29-08-2023 дата публикации
Номер: CN116655698A
Принадлежит:
The invention relates to a phosphorus-based flame retardant as well as a preparation method and application thereof, and belongs to the technical field of flame retardants. According to the phosphorus-based flame retardant provided by the invention, DOPO is subjected to modification treatment, a plurality of DOPO reactants are bonded, and a long carbon chain structure is introduced into the phosphorus-based flame retardant, so that the distribution uniformity of the phosphorus-based flame retardant in an epoxy resin matrix and the bonding strength of the phosphorus-based flame retardant and epoxy resin are improved, and meanwhile, due to introduction of a long carbon chain, the flame retardance of the epoxy resin is improved. In the flame-retardant process, coke in a condensed phase can be promoted to be generated, the coking rate is increased, so that the flame-retardant effect is improved, the introduced nitrogen element forms nitrogen-containing free radicals in the flame-retardant process ...
Подробнее