Polynaphthalene ring epoxy resin cross-linked network as well as preparation method and application thereof

The invention belongs to the technical field of high polymer materials, and particularly relates to a multi-naphthalene-ring epoxy resin cross-linked network as well as a preparation method and application thereof. According to the multi-naphthalene-ring epoxy resin cross-linked network provided by the invention, a high-temperature-resistant naphthalene ring is inserted into an epoxy resin structure, and an inorganic filler with excellent high-temperature resistance is introduced into the cross-linked network, so that the problem of poor high-temperature resistance of a traditional epoxy resin polymer is solved, and the multi-naphthalene-ring epoxy resin cross-linked network has excellent high-temperature resistance; the glass transition temperature is high, the working life at high temperature is long, and the cost is lower. The glass transition temperature of the polynaphthalene ring epoxy resin cross-linked network provided by the invention is up to 218 DEG C, the polynaphthalene ring epoxy resin cross-lin