Fujian Haidefu: “A composite fluororesin material and its preparation method””

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Recently, **information from the Intellectual Property Office shows that Fujian Haidefu New Materials Co., Ltd. has had its patent for \"a composite fluororesin material and its preparation method\" published; the application publication number is CN121851580A, with the application date being December 2025. The patent abstract states that in order to overcome the problem of unstable interfacial bonding in existing PTFE and aramid composite materials, this invention provides a composite fluororesin material and its preparation method. The composite fluororesin material comprises the following raw material components: surface-activated fluororesin, bifunctional bridge polymer, and surface-activated reinforcing material ； The surface of the fluororesin has first reactive functional groups, while the surface of the reinforcing material has second reactive functional groups ； The bifunctional bridge polymer is bonded to the fluorine-containing resin via the first reactive functional group, and it is also bonded to the reinforcing material via the second reactive functional group ； The bifunctional bridge polymer comprises a heat-resistant main chain and dynamic side groups located on said heat-resistant main chain; the heat-resistant main chain includes one or more of polysiloxane chains and polyarylimide chains, while the dynamic side groups include one or more of furan/maleimide DA pairs and disulfide bonds.