▎ 摘　　要

NOVELTY - Graphene-coated glass wool felt resin composite material plate comprises 10-25 vol.% graphene-coated glass wool felt and 75-90 vol.% resin substrate. The graphene-coated glass wool felt is composed of glass fiber wool felt and graphene. The glass fiber wool felt is composed of glass fiber monofilament and binder. The binder is evenly coated on the surface of the glass fiber monofilament and overlap between the different glass fiber monofilaments. The binder is modified phenolic resin, and the graphene is uniformly coated on the surface of the binder to form continuous coating structure. The resin substrate is phenolic resin or epoxy resin. The preparation of graphene-coated glass wool felt resin composite material plate comprises e.g. (i) soaking the glass fiber cotton felt in certain concentration of hydrochloric acid solution, adding glass fiber cotton felt into certain concentration of gamma -aminopropyltrimethoxysilanol aqueous solution, removing out, and drying. USE - Used as graphene-coated glass wool felt resin composite material plate. ADVANTAGE - The method uses graphene-coated glass wool felt as the reinforcing phase to improve the high temperature resistance and mechanical properties of the composite material plate, and improves electromagnetic shielding performance of the composite material substrate. DETAILED DESCRIPTION - Graphene-coated glass wool felt resin composite material plate comprises 10-25 vol.% graphene-coated glass wool felt and 75-90 vol.% resin substrate. The graphene-coated glass wool felt is composed of glass fiber wool felt and graphene. The glass fiber wool felt is composed of glass fiber monofilament and binder. The binder is evenly coated on the surface of the glass fiber monofilament and overlap between the different glass fiber monofilaments. The binder is modified phenolic resin, and the graphene is uniformly coated on the surface of the binder to form continuous coating structure. The resin substrate is phenolic resin or epoxy resin. The preparation of graphene-coated glass wool felt resin composite material plate comprises (i) soaking the glass fiber cotton felt in certain concentration of hydrochloric acid solution, adding glass fiber cotton felt into certain concentration of gamma -aminopropyltrimethoxysilanol aqueous solution, removing out, and drying, (ii) adding the glass fiber wool felt into certain concentration of bovine serum protein solution for soaking, rinsing with deionized water, and drying to obtain surface-modified glass fiber cotton felt, (iii) adding the surface-modified glass wool felt into graphene oxide solution of certain concentration, and soaking for certain period of time to obtain glass fiber wool felt uniformly coated with graphene oxide, (iv) preparing mixed solution of hydroiodic acid and acetic acid, placing the glass fiber wool felt uniformly coated with graphene oxide on top of the solution, heating the solution, allowing the solution vapor pass through the glass wool, and preserving for certain period of time to obtain graphene-coated glass wool felt, and (v) placing the graphene-coated glass wool felt in mold, pouring uniformly stirred resin prepreg, heating and vacuum impregnation, and curing to obtain graphene-coated glass wool felt resin-based composite material plate.