The invention relates to the technical field of composite materials, and specifically discloses an acid and alkali resistant glass fiber composite material and a preparation method thereof. The material comprises 60‑80 parts of epoxy resin, 20‑40 parts of modified glass fiber, 8‑12 parts of nano filler, 0.5‑2 parts of curing agent and 1‑3 parts of ethylene bisstearamide. With pretreated glass fiber as the substrate, radio frequency magnetron sputtering is adopted with titanium dioxide as the target material to deposit a continuous titanium dioxide film on the glass fiber surface, which improves the strength of glass fiber. Moreover, titanium dioxide forms an effective coating on the glass fiber surface, and hydroxyl groups on titanium dioxide participate in the curing reaction of epoxy resin, optimizing the interfacial bonding between glass fiber and epoxy resin, facilitating the compatible combination of modified glass fiber and epoxy resin, and further enhancing the overall performance of the composite material.

Area Code: CN

Application Number: CN202110987971.X